Android添加系统级顶层窗口 和 WindowManager添加view的动画问题

当Dialog有编辑框时如果选择会弹菜单窗口就不要用

Context applicationContext = mainActivity.getApplicationContext();
AlertDialog.Builder dlgBuilder = new AlertDialog.Builder(applicationContext);
AlertDialog dialog = dlgBuilder.create();
dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);

public class Dialog implements DialogInterface, Window.Callback, KeyEvent.Callback, OnCreateContextMenuListener

constructor

  /**
     * Create a Dialog window that uses the default dialog frame style.
     *
     * @param context The Context the Dialog is to run it.  In particular, it
     *                uses the window manager and theme in this context to
     *                present its UI.
     */
    public Dialog(Context context) {
        this(context, 0, true);
    }

    /**
     * Create a Dialog window that uses a custom dialog style.
     *
     * @param context The Context in which the Dialog should run. In particular, it
     *                uses the window manager and theme from this context to
     *                present its UI.
     * @param theme A style resource describing the theme to use for the
     * window. See <a href="{@docRoot}guide/topics/resources/available-resources.html#stylesandthemes">Style
     * and Theme Resources</a> for more information about defining and using
     * styles.  This theme is applied on top of the current theme in
     * <var>context</var>.  If 0, the default dialog theme will be used.
     */
    public Dialog(Context context, int theme) {
        this(context, theme, true);
    }

    Dialog(Context context, int theme, boolean createContextThemeWrapper) {
        if (createContextThemeWrapper) {
            if (theme == 0) {
                TypedValue outValue = new TypedValue();
                context.getTheme().resolveAttribute(com.android.internal.R.attr.dialogTheme,
                        outValue, true);
                theme = outValue.resourceId;
            }
            mContext = new ContextThemeWrapper(context, theme);
        } else {
            mContext = context;
        }

        mWindowManager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
        Window w = PolicyManager.makeNewWindow(mContext);
        mWindow = w;
        w.setCallback(this);
        w.setWindowManager(mWindowManager, null, null);
        w.setGravity(Gravity.CENTER);
        mListenersHandler = new ListenersHandler(this);
    }

show

/**
     * Start the dialog and display it on screen.  The window is placed in the
     * application layer and opaque.  Note that you should not override this
     * method to do initialization when the dialog is shown, instead implement
     * that in {@link #onStart}.
     */
    public void show() {
        if (mShowing) {
            if (mDecor != null) {
                if (mWindow.hasFeature(Window.FEATURE_ACTION_BAR)) {
                    mWindow.invalidatePanelMenu(Window.FEATURE_ACTION_BAR);
                }
                mDecor.setVisibility(View.VISIBLE);
            }
            return;
        }

        mCanceled = false;

        if (!mCreated) {
            dispatchOnCreate(null);
        }

        onStart();
        mDecor = mWindow.getDecorView();

        if (mActionBar == null && mWindow.hasFeature(Window.FEATURE_ACTION_BAR)) {
            final ApplicationInfo info = mContext.getApplicationInfo();
            mWindow.setDefaultIcon(info.icon);
            mWindow.setDefaultLogo(info.logo);
            mActionBar = new ActionBarImpl(this);
        }

        WindowManager.LayoutParams l = mWindow.getAttributes();
        if ((l.softInputMode
                & WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION) == 0) {
            WindowManager.LayoutParams nl = new WindowManager.LayoutParams();
            nl.copyFrom(l);
            nl.softInputMode |=
                    WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION;
            l = nl;
        }

        try {
            mWindowManager.addView(mDecor, l);
            mShowing = true;

            sendShowMessage();
        } finally {
        }
    }

AndroidRuntime FATAL EXCEPTION

12-28 13:21:19.631: E/AndroidRuntime(8611): FATAL EXCEPTION: main
12-28 13:21:19.631: E/AndroidRuntime(8611): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.view.ViewRootImpl.setView(ViewRootImpl.java:571)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:246)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.widget.PopupWindow.invokePopup(PopupWindow.java:993)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.widget.PopupWindow.showAtLocation(PopupWindow.java:847)
12-28 13:21:19.631: E/AndroidRuntime(8611): at com.android.internal.policy.impl.PhoneWindow$DecorView$1.run(PhoneWindow.java:2285)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.os.Handler.handleCallback(Handler.java:725)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.os.Handler.dispatchMessage(Handler.java:92)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.os.Looper.loop(Looper.java:137)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.app.ActivityThread.main(ActivityThread.java:5041)
12-28 13:21:19.631: E/AndroidRuntime(8611): at java.lang.reflect.Method.invokeNative(Native Method)
12-28 13:21:19.631: E/AndroidRuntime(8611): at java.lang.reflect.Method.invoke(Method.java:511)
12-28 13:21:19.631: E/AndroidRuntime(8611): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
12-28 13:21:19.631: E/AndroidRuntime(8611): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
12-28 13:21:19.631: E/AndroidRuntime(8611): at dalvik.system.NativeStart.main(Native Method)

    <!-- Variant of {@link #Theme_Translucent} that has no title bar and
         no status bar -->
    <style name="Theme.Translucent.NoTitleBar.Fullscreen">
        <item name="android:windowFullscreen">true</item>
    </style>

    <!-- Default theme for activities that don't actually display a UI; that
         is, they finish themselves before being resumed.  -->
    <style name="Theme.NoDisplay">
        <item name="android:windowBackground">@null</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowAnimationStyle">@null</item>
        <item name="android:windowDisablePreview">true</item>
        <item name="android:windowNoDisplay">true</item>
    </style>

    <!-- Default theme for dialog windows and activities (on API level 10 and lower),
         which is used by the
         {@link android.app.Dialog} class.  This changes the window to be
         floating (not fill the entire screen), and puts a frame around its
         contents.  You can set this theme on an activity if you would like to
         make an activity that looks like a Dialog. -->
    <style name="Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowTitleStyle">@android:style/DialogWindowTitle</item>
        <item name="android:windowBackground">@android:drawable/panel_background</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
        <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
        <item name="android:windowCloseOnTouchOutside">@bool/config_closeDialogWhenTouchOutside</item>
        <item name="android:windowActionModeOverlay">true</item>

        <item name="android:colorBackgroundCacheHint">@null</item>

        <item name="textAppearance">@android:style/TextAppearance</item>
        <item name="textAppearanceInverse">@android:style/TextAppearance.Inverse</item>

        <item name="textColorPrimary">@android:color/primary_text_dark</item>
        <item name="textColorSecondary">@android:color/secondary_text_dark</item>
        <item name="textColorTertiary">@android:color/tertiary_text_dark</item>
        <item name="textColorPrimaryInverse">@android:color/primary_text_light</item>
        <item name="textColorSecondaryInverse">@android:color/secondary_text_light</item>
        <item name="textColorTertiaryInverse">@android:color/tertiary_text_light</item>
        <item name="textColorPrimaryDisableOnly">@android:color/primary_text_dark_disable_only</item>
        <item name="textColorPrimaryInverseDisableOnly">@android:color/primary_text_light_disable_only</item>
        <item name="textColorPrimaryNoDisable">@android:color/primary_text_dark_nodisable</item>
        <item name="textColorSecondaryNoDisable">@android:color/secondary_text_dark_nodisable</item>
        <item name="textColorPrimaryInverseNoDisable">@android:color/primary_text_light_nodisable</item>
        <item name="textColorSecondaryInverseNoDisable">@android:color/secondary_text_light_nodisable</item>
        <item name="textColorHint">@android:color/hint_foreground_dark</item>
        <item name="textColorHintInverse">@android:color/hint_foreground_light</item>
        <item name="textColorSearchUrl">@android:color/search_url_text</item>

        <item name="textAppearanceLarge">@android:style/TextAppearance.Large</item>
        <item name="textAppearanceMedium">@android:style/TextAppearance.Medium</item>
        <item name="textAppearanceSmall">@android:style/TextAppearance.Small</item>
        <item name="textAppearanceLargeInverse">@android:style/TextAppearance.Large.Inverse</item>
        <item name="textAppearanceMediumInverse">@android:style/TextAppearance.Medium.Inverse</item>
        <item name="textAppearanceSmallInverse">@android:style/TextAppearance.Small.Inverse</item>

        <item name="listPreferredItemPaddingLeft">10dip</item>
        <item name="listPreferredItemPaddingRight">10dip</item>
        <item name="listPreferredItemPaddingStart">10dip</item>
        <item name="listPreferredItemPaddingEnd">10dip</item>

        <item name="preferencePanelStyle">@style/PreferencePanel.Dialog</item>
    </style>

    <!-- Variant of {@link Theme_Dialog} that does not include a frame (or background).
         The view hierarchy of the dialog is responsible for drawing all of
         its pixels. -->
    <style name="Theme.Dialog.NoFrame">
        <item name="windowBackground">@android:color/transparent</item>
        <item name="android:windowFrame">@null</item>
        <item name="windowContentOverlay">@null</item>
        <item name="android:windowAnimationStyle">@null</item>
        <item name="android:backgroundDimEnabled">false</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowCloseOnTouchOutside">false</item>
    </style>

    <!-- Default theme for alert dialog windows (on API level 10 and lower), which is used by the
         {@link android.app.AlertDialog} class.  This is basically a dialog
         but sets the background to empty so it can do two-tone backgrounds. -->
    <style name="Theme.Dialog.Alert">
        <item name="windowBackground">@android:color/transparent</item>
        <item name="windowTitleStyle">@android:style/DialogWindowTitle</item>
        <item name="windowContentOverlay">@null</item>
        <item name="itemTextAppearance">@android:style/TextAppearance.Large.Inverse</item>
        <item name="textAppearanceListItem">@android:style/TextAppearance.Large.Inverse</item>
        <item name="textAppearanceListItemSmall">@android:style/TextAppearance.Large.Inverse</item>
    </style>

        <activity
            android:name=".AlertActivity"
            android:excludeFromRecents="true"
            android:finishOnTaskLaunch="true"
            android:launchMode="singleInstance"
            android:theme="@*android:style/Theme.Dialog.Alert" >
        </activity>

package com.android.autologin;

import android.app.Activity;
import android.content.DialogInterface;
import android.content.DialogInterface.OnDismissListener;
import android.os.Bundle;

/**
 *     This is the dialog Activity used as an AlertDialog for the user to interact.
 * Requires android:launchMode="singleInstance" in your AndroidManifest to work
 * properly.
 * <p/>
 *     当Dialog有编辑框时如果选择会弹菜单窗口就不要用 AlertDialog(Application)
 * 再添加WindowManager.LayoutParams. TYPE_SYSTEM_ALERT，
 * <pre>
 *         Context applicationContext = mainActivity.getApplicationContext();
 *        AlertDialog.Builder dlgBuilder = new AlertDialog.Builder(applicationContext);
 *        EditText et = new EditText(mainActivity);
 *        dlgBuilder.setTitle(mainActivity.getTitle());
 *        dlgBuilder.setPositiveButton(android.R.string.ok, null);
 *        dlgBuilder.setNegativeButton(android.R.string.cancel, null);
 *        dlgBuilder.setIcon(android.R.drawable.ic_dialog_alert);
 *        dlgBuilder.setView(et);
 *        AlertDialog dialog = dlgBuilder.create();
 *        dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
 *        dialog.show();
 * </pre>
 * 防止报错
 * attrs.token = null,
 * BadTokenException("Unable to add window -- token " + attrs.token + " is not for an application")
 *
 * @usage
 *
 * <i>.java</i>
 *
 * <code><pre>
 *         Intent dialogIntent = new Intent(mContext, AlertActivity.class);
 *         dialogIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 *         mContext.startActivity(dialogIntent);
 * </pre></code>
 *
 * <i>AndroidManifest.xml</i>
 *
 * <pre>
 *         < activity
 *             android:name=".AlertActivity"
 *             android:excludeFromRecents="true"
 *             android:finishOnTaskLaunch="true"
 *             android:launchMode="singleInstance"
 *             android:theme="@android:style/Theme.Dialog" >
 *         < /activity>
 * </pre>
 *
 * @author Sansan
 **/
public class AlertActivity extends Activity implements DialogInterface.OnClickListener, OnDismissListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // setContentView(R.layout.alertactivity);

        // Get root view from current activity
        // @see http://stackoverflow.com/questions/4486034/get-root-view-from-current-activity

        // //rootview
        //// check layouts in hierarchyviewer.

        // findViewById(android.R.id.content) is giving me the root view
        // findViewById(android.R.id.content).getRootView()
        //getWindow().getDecorView().findViewById(android.R.id.content)

        // //-------------------------------------------------------------------------------------------
        // //This is what I use to get the root view as found in the XML file assigned with setContentView
        // //This answer gave the view without the status bar - which is what I wanted. I was looking for
        // //the pixel width + height of the visible part of the activity. This one works, thanks!
        //
        //This excludes ActionBar!
        //final ViewGroup viewGroup = (ViewGroup) ((ViewGroup) this.findViewById(android.R.id.content)).getChildAt(0);
        // //-------------------------------------------------------------------------------------------

        // //-------------------------------------------------------------------------------------------
        // //I tested this in android 4.0.3, only:
        //
        // getWindow().getDecorView().getRootView();
        //
        // //give the same view what we get from
        //
        // anyview.getRootView();  == com.android.internal.policy.impl.PhoneWindow$DecorView@#########
        //
        // //and
        //
        // getWindow().getDecorView().findViewById(android.R.id.content)

        // //giving child of its == android.widget.FrameLayout@#######
        // //Please confirm.
        // //-------------------------------------------------------------------------------------------

        //setVisible(true);
        //requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉标题栏

        // //Error, if select any text to pop up a system menu view, such as
        // paste in
        // // the Dialog.
        // //@see android/view/ViewRootImpl.java
        // //case WindowManagerGlobal.ADD_NOT_APP_TOKEN: throw new
        // //WindowManager.BadTokenException("Unable to add window -- token " +
        // //attrs.token + " is not for an application");
        // Context applicationContext = this.getApplicationContext();
        // AlertDialog.Builder dlgBuilder = new
        // AlertDialog.Builder(applicationContext);

        //AlertDialog.Builder dlgBuilder = new AlertDialog.Builder(this);
        //EditText et = new EditText(this);

        //dlgBuilder.setTitle(this.getTitle());
        //dlgBuilder.setPositiveButton(android.R.string.ok, AlertActivity.this);
        //dlgBuilder.setNegativeButton(android.R.string.cancel, AlertActivity.this);
        //dlgBuilder.setIcon(android.R.drawable.ic_dialog_alert);
        //dlgBuilder.setView(et);
        //AlertDialog dialog = dlgBuilder.create();
        //dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
        //dialog.setCanceledOnTouchOutside(false);
        //dialog.setOnDismissListener(this);
        //dialog.show();

        // //DialogFragment
        // FragmentTransaction ft = getFragmentManager().beginTransaction();
        // DialogFragment newFragment = MyDialogFragment.newInstance();
        // ft.add(android.R.id.content, newFragment);
        // ft.commit();
    }

    //// @TargetApi(Build.VERSION_CODES.HONEYCOMB)
//    public static class MyDialogFragment extends DialogFragment {
//        static MyDialogFragment newInstance() {
//            return new MyDialogFragment();
//        }
//
//        @Override
//        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
//            //View v = inflater.inflate(R.layout.alertdialog, container, false);
//            getActivity().getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
//            return new EditText(getActivity());
//        }
//    }

    /**
     * meanwhile, finish the AlertActivity.
     */
    @Override
    public void onDismiss(DialogInterface dialog) {
        //finish();
    }

    @Override
    public void onClick(DialogInterface dialog, int which) {

    }
}

Context applicationContext = mainActivity.getApplicationContext();
        WindowManager applicationWindowManager = (WindowManager) applicationContext.getSystemService(Context.WINDOW_SERVICE);
        AlertDialog.Builder dlgBuilder = new AlertDialog.Builder(mainActivity);
        EditText et = new EditText(mainActivity);

        // Dialog界面
        dlgBuilder.setTitle(mainActivity.getTitle());
        dlgBuilder.setPositiveButton(android.R.string.ok, null);
        dlgBuilder.setNegativeButton(android.R.string.cancel, null);
        dlgBuilder.setIcon(android.R.drawable.ic_dialog_alert);
        dlgBuilder.setView(et);
        AlertDialog dialog = dlgBuilder.create();
        // dialog.getWindow().getAttributes().token = mainActivity.getWindow().getAttributes().token;
        //
        try {
            Field mWindowManagerField = Dialog.class.getDeclaredField("mWindowManager");
            mWindowManagerField.setAccessible(true);
            mWindowManagerField.set(dialog, applicationWindowManager);
        } catch (NoSuchFieldException e) {
            // TODO Auto-generated catch block
            Alog.w(TAG, e.toString());
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            Alog.w(TAG, e.toString());
        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            Alog.w(TAG, e.toString());
        }

        dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
        // dialog.getWindow().addFlags(android.R.attr.windowIsFloating);
        dialog.show();

public abstract class Window

    /**
     * Return whether this window is being displayed with a floating style
     * (based on the {@link android.R.attr#windowIsFloating} attribute in
     * the style/theme).
     *
     * @return Returns true if the window is configured to be displayed floating
     * on top of whatever is behind it.
     */
    public abstract boolean isFloating();

    /**
     * Set the width and height layout parameters of the window.  The default
     * for both of these is MATCH_PARENT; you can change them to WRAP_CONTENT
     * or an absolute value to make a window that is not full-screen.
     *
     * @param width The desired layout width of the window.
     * @param height The desired layout height of the window.
     *
     * @see ViewGroup.LayoutParams#height
     * @see ViewGroup.LayoutParams#width
     */
    public void setLayout(int width, int height) {
        final WindowManager.LayoutParams attrs = getAttributes();
        attrs.width = width;
        attrs.height = height;
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    /**
     * Set the gravity of the window, as per the Gravity constants.  This
     * controls how the window manager is positioned in the overall window; it
     * is only useful when using WRAP_CONTENT for the layout width or height.
     *
     * @param gravity The desired gravity constant.
     *
     * @see Gravity
     * @see #setLayout
     */
    public void setGravity(int gravity)
    {
        final WindowManager.LayoutParams attrs = getAttributes();
        attrs.gravity = gravity;
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    /**
     * Set the type of the window, as per the WindowManager.LayoutParams
     * types.
     *
     * @param type The new window type (see WindowManager.LayoutParams).
     */
    public void setType(int type) {
        final WindowManager.LayoutParams attrs = getAttributes();
        attrs.type = type;
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    /**
     * Set the format of window, as per the PixelFormat types.  This overrides
     * the default format that is selected by the Window based on its
     * window decorations.
     *
     * @param format The new window format (see PixelFormat).  Use
     *               PixelFormat.UNKNOWN to allow the Window to select
     *               the format.
     *
     * @see PixelFormat
     */
    public void setFormat(int format) {
        final WindowManager.LayoutParams attrs = getAttributes();
        if (format != PixelFormat.UNKNOWN) {
            attrs.format = format;
            mHaveWindowFormat = true;
        } else {
            attrs.format = mDefaultWindowFormat;
            mHaveWindowFormat = false;
        }
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    /**
     * Specify custom animations to use for the window, as per
     * {@link WindowManager.LayoutParams#windowAnimations
     * WindowManager.LayoutParams.windowAnimations}.  Providing anything besides
     * 0 here will override the animations the window would
     * normally retrieve from its theme.
     */
    public void setWindowAnimations(int resId) {
        final WindowManager.LayoutParams attrs = getAttributes();
        attrs.windowAnimations = resId;
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    /**
     * Specify an explicit soft input mode to use for the window, as per
     * {@link WindowManager.LayoutParams#softInputMode
     * WindowManager.LayoutParams.softInputMode}.  Providing anything besides
     * "unspecified" here will override the input mode the window would
     * normally retrieve from its theme.
     */
    public void setSoftInputMode(int mode) {
        final WindowManager.LayoutParams attrs = getAttributes();
        if (mode != WindowManager.LayoutParams.SOFT_INPUT_STATE_UNSPECIFIED) {
            attrs.softInputMode = mode;
            mHasSoftInputMode = true;
        } else {
            mHasSoftInputMode = false;
        }
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    /**
     * Convenience function to set the flag bits as specified in flags, as
     * per {@link #setFlags}.
     * @param flags The flag bits to be set.
     * @see #setFlags
     * @see #clearFlags
     */
    public void addFlags(int flags) {
        setFlags(flags, flags);
    }

    /** @hide */
    public void addPrivateFlags(int flags) {
        setPrivateFlags(flags, flags);
    }

    /**
     * Convenience function to clear the flag bits as specified in flags, as
     * per {@link #setFlags}.
     * @param flags The flag bits to be cleared.
     * @see #setFlags
     * @see #addFlags
     */
    public void clearFlags(int flags) {
        setFlags(0, flags);
    }

    /**
     * Set the flags of the window, as per the
     * {@link WindowManager.LayoutParams WindowManager.LayoutParams}
     * flags.
     *
     * <p>Note that some flags must be set before the window decoration is
     * created (by the first call to
     * {@link #setContentView(View, android.view.ViewGroup.LayoutParams)} or
     * {@link #getDecorView()}:
     * {@link WindowManager.LayoutParams#FLAG_LAYOUT_IN_SCREEN} and
     * {@link WindowManager.LayoutParams#FLAG_LAYOUT_INSET_DECOR}.  These
     * will be set for you based on the {@link android.R.attr#windowIsFloating}
     * attribute.
     *
     * @param flags The new window flags (see WindowManager.LayoutParams).
     * @param mask Which of the window flag bits to modify.
     * @see #addFlags
     * @see #clearFlags
     */
    public void setFlags(int flags, int mask) {
        final WindowManager.LayoutParams attrs = getAttributes();
        attrs.flags = (attrs.flags&~mask) | (flags&mask);
        if ((mask&WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY) != 0) {
            attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SET_NEEDS_MENU_KEY;
        }
        mForcedWindowFlags |= mask;
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    private void setPrivateFlags(int flags, int mask) {
        final WindowManager.LayoutParams attrs = getAttributes();
        attrs.privateFlags = (attrs.privateFlags & ~mask) | (flags & mask);
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    /**
     * Set the amount of dim behind the window when using
     * {@link WindowManager.LayoutParams#FLAG_DIM_BEHIND}.  This overrides
     * the default dim amount of that is selected by the Window based on
     * its theme.
     *
     * @param amount The new dim amount, from 0 for no dim to 1 for full dim.
     */
    public void setDimAmount(float amount) {
        final WindowManager.LayoutParams attrs = getAttributes();
        attrs.dimAmount = amount;
        mHaveDimAmount = true;
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(attrs);
        }
    }

    /**
     * Specify custom window attributes.  <strong>PLEASE NOTE:</strong> the
     * layout params you give here should generally be from values previously
     * retrieved with {@link #getAttributes()}; you probably do not want to
     * blindly create and apply your own, since this will blow away any values
     * set by the framework that you are not interested in.
     *
     * @param a The new window attributes, which will completely override any
     *          current values.
     */
    public void setAttributes(WindowManager.LayoutParams a) {
        mWindowAttributes.copyFrom(a);
        if (mCallback != null) {
            mCallback.onWindowAttributesChanged(mWindowAttributes);
        }
    }

    /**
     * Retrieve the current window attributes associated with this panel.
     *
     * @return WindowManager.LayoutParams Either the existing window
     *         attributes object, or a freshly created one if there is none.
     */
    public final WindowManager.LayoutParams getAttributes() {
        return mWindowAttributes;
    }

public static class

WindowManager.LayoutParams

extends ViewGroup.LayoutParams
implements Parcelable

java.lang.Object
?	android.view.ViewGroup.LayoutParams
	?	android.view.WindowManager.LayoutParams

WindowManager.LayoutParams 是 WindowManager 接口的嵌套类；它继承于 ViewGroup.LayoutParams； 它用于向WindowManager描述Window的管理策略。

主要成员常量

Window flag系列

该系列主要用于对Window的flag进行设置。设置Window的flag,可以直接对Window的getAttributes()得到其 WindowManager.LayoutParams对象,然后直接对它flag变量操作。也可以Window的addFlags(int flags)方法，setFlags(int flags, int mask)方法，clearFlags(int flags)方法进行操作。

比如设置全屏：

 Window window = getWindow(); 

 WindowManager.LayoutParams winParams = win.getAttributes();

 winParams.flags=winParams.flags|WindowManager.LayoutParams.FLAG_FULLSCREEN；

 或

 window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

 或

 window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 

 取消全屏

 Window window = getWindow(); 

 winParams.flags=winParams.flags&~WindowManager.LayoutParams.FLAG_FULLSCREEN;

 或

 window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

 或

window.setFlags(0, WindowManager.LayoutParams.FLAG_FULLSCREEN);

所有Window flag如下：

Window.addFlags(int flag)

final Window win = getWindow();
         win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);//覆盖在屏幕锁之上。
          PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
         if (!pm.isScreenOn()) {//屏幕时候保持高亮
             win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
                     | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
                     | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
                     | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
         }

一些Flag的介绍 
窗口之后的内容变暗。 
public static final int FLAG_DIM_BEHIND       = 0x00000002;

窗口之后的内容变模糊。 
public static final int FLAG_BLUR_BEHIND       = 0x00000004;

不许获得焦点。 
不能获得按键输入焦点，所以不能向它发送按键或按钮事件。那些时间将发送给它后面的可以获得焦点的窗口。此选项还会设置FLAG_NOT_TOUCH_MODAL选项。设置此选项，意味着窗口不能与软输入法进行交互，所以它的Z序独立于任何活动的输入法（换句话说，它可以全屏显示，如果需要的话，可覆盖输入法窗口）。要修改这一行为，可参考FLAG_ALT_FOCUSALBE_IM选项。 
public static final int FLAG_NOT_FOCUSABLE     = 0x00000008;

不接受触摸屏事件。 
public static final int FLAG_NOT_TOUCHABLE     = 0x00000010;

当窗口可以获得焦点（没有设置FLAG_NOT_FOCUSALBE选项）时，仍然将窗口范围之外的点设备事件（鼠标、触摸屏）发送给后面的窗口处理。否则它将独占所有的点设备事件，而不管它们是不是发生在窗口范围之内。 
public static final int FLAG_NOT_TOUCH_MODAL   = 0x00000020;

如果设置了这个标志，当设备休眠时，点击触摸屏，设备将收到这个第一触摸事件。 
通常第一触摸事件被系统所消耗，用户不会看到他们点击屏幕有什么反应。 
public static final int FLAG_TOUCHABLE_WHEN_WAKING = 0x00000040;

当此窗口为用户可见时，保持设备常开，并保持亮度不变。 
public static final int FLAG_KEEP_SCREEN_ON    = 0x00000080;

窗口占满整个屏幕，忽略周围的装饰边框（例如状态栏）。此窗口需考虑到装饰边框的内容。 
public static final int FLAG_LAYOUT_IN_SCREEN   =0x00000100;

允许窗口扩展到屏幕之外。 
public static final int FLAG_LAYOUT_NO_LIMITS   =0x00000200;

窗口显示时，隐藏所有的屏幕装饰（例如状态条）。使窗口占用整个显示区域。 
public static final int FLAG_FULLSCREEN     = 0x00000400;

此选项将覆盖FLAG_FULLSCREEN选项，并强制屏幕装饰（如状态条）弹出。 
public static final int FLAG_FORCE_NOT_FULLSCREEN   =0x00000800;

抖动。指的是对半透明的显示方法。又称“点透”。图形处理较差的设备往往用“点透”替代Alpha混合。 
public static final int FLAG_DITHER           = 0x00001000;

不允许屏幕截图。 
public static final int FLAG_SECURE           = 0x00002000;

一种特殊模式，布局参数用于指示显示比例。 
public static final int FLAG_SCALED           = 0x00004000;

当屏幕有可能贴着脸时，这一选项可防止面颊对屏幕造成误操作。 
public static final int FLAG_IGNORE_CHEEK_PRESSES   = 0x00008000;

当请求布局时，你的窗口可能出现在状态栏的上面或下面，从而造成遮挡。当设置这一选项后，窗口管理器将确保窗口内容不会被装饰条（状态栏）盖住。 
public static final int FLAG_LAYOUT_INSET_DECOR = 0x00010000;

反转FLAG_NOT_FOCUSABLE选项。 
如果同时设置了FLAG_NOT_FOCUSABLE选项和本选项，窗口将能够与输入法交互，允许输入法窗口覆盖； 
如果FLAG_NOT_FOCUSABLE没有设置而设置了本选项，窗口不能与输入法交互，可以覆盖输入法窗口。 
public static final int FLAG_ALT_FOCUSABLE_IM = 0x00020000;

如果你设置了FLAG_NOT_TOUCH_MODAL，那么当触屏事件发生在窗口之外事，可以通过设置此标志接收到一个MotionEvent.ACTION_OUTSIDE事件。注意，你不会收到完整的down/move/up事件，只有第一次down事件时可以收到ACTION_OUTSIDE。 
public static final int FLAG_WATCH_OUTSIDE_TOUCH = 0x00040000;

当屏幕锁定时，窗口可以被看到。这使得应用程序窗口优先于锁屏界面。可配合FLAG_KEEP_SCREEN_ON选项点亮屏幕并直接显示在锁屏界面之前。可使用FLAG_DISMISS_KEYGUARD选项直接解除非加锁的锁屏状态。此选项只用于最顶层的全屏幕窗口。 
public static final int FLAG_SHOW_WHEN_LOCKED = 0x00080000;

请求系统墙纸显示在你的窗口后面。窗口必须是半透明的。 
public static final int FLAG_SHOW_WALLPAPER = 0x00100000;

窗口一旦显示出来，系统将点亮屏幕，正如用户唤醒设备那样。 
public static final int FLAG_TURN_SCREEN_ON = 0x00200000;

解除锁屏。只有锁屏界面不是加密的才能解锁。如果锁屏界面是加密的，那么用户解锁之后才能看到此窗口，除非设置了FLAG_SHOW_WHEN_LOCKED选项。 
public static final int FLAG_DISMISS_KEYGUARD = 0x00400000;

锁屏界面淡出时，继续运行它的动画。 
public static final int FLAG_KEEP_SURFACE_WHILE_ANIMATING =0x10000000;

以原始尺寸显示窗口。用于在兼容模式下运行程序。 
public static final int FLAG_COMPATIBLE_WINDOW = 0x20000000;

用于系统对话框。设置此选项的窗口将无条件获得焦点。 
public static final int FLAG_SYSTEM_ERROR = 0x40000000;

type 的取值：
      应用程序窗口。
      public static final int FIRST_APPLICATION_WINDOW = 1;   
 
      所有程序窗口的“基地”窗口，其他应用程序窗口都显示在它上面。    
      public static final int TYPE_BASE_APPLICATION   =1;
        
      普通应用功能程序窗口。token必须设置为Activity的token，以指出该窗口属谁。
      public static final int TYPE_APPLICATION       = 2;
 
       用于应用程序启动时所显示的窗口。应用本身不要使用这种类型。
      它用于让系统显示些信息，直到应用程序可以开启自己的窗口。  
      public static final int TYPE_APPLICATION_STARTING = 3;
      
      应用程序窗口结束。
      public static final int LAST_APPLICATION_WINDOW = 99;
 
      子窗口。子窗口的Z序和坐标空间都依赖于他们的宿主窗口。
      public static final int FIRST_SUB_WINDOW       = 1000;
 
      面板窗口，显示于宿主窗口上层。
      public static final int TYPE_APPLICATION_PANEL  = FIRST_SUB_WINDOW;
 
      媒体窗口，例如视频。显示于宿主窗口下层。
      public static final int TYPE_APPLICATION_MEDIA  = FIRST_SUB_WINDOW+1;
 
      应用程序窗口的子面板。显示于所有面板窗口的上层。（GUI的一般规律，越“子”越靠上）
      public static final int TYPE_APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW +2;
 
      对话框。类似于面板窗口，绘制类似于顶层窗口，而不是宿主的子窗口。
      public static final int TYPE_APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW +3;
 
      媒体信息。显示在媒体层和程序窗口之间，需要实现透明（半透明）效果。（例如显示字幕）
      public static final int TYPE_APPLICATION_MEDIA_OVERLAY  = FIRST_SUB_WINDOW +4;
 
      子窗口结束。（ End of types of sub-windows ）
      public static final int LAST_SUB_WINDOW        = 1999;
 
      系统窗口。非应用程序创建。
      public static final int FIRST_SYSTEM_WINDOW    = 2000;
 
      状态栏。只能有一个状态栏；它位于屏幕顶端，其他窗口都位于它下方。
      public static final int TYPE_STATUS_BAR        =  FIRST_SYSTEM_WINDOW;
 
      搜索栏。只能有一个搜索栏；它位于屏幕上方。
      public static final int TYPE_SEARCH_BAR        = FIRST_SYSTEM_WINDOW+1;
 
      电话窗口。它用于电话交互（特别是呼入）。它置于所有应用程序之上，状态栏之下。
      public static final int TYPE_PHONE            = FIRST_SYSTEM_WINDOW+2;
 
      系统提示。它总是出现在应用程序窗口之上。
      public static final int TYPE_SYSTEM_ALERT      =  FIRST_SYSTEM_WINDOW +3;
 
      锁屏窗口。
      public static final int TYPE_KEYGUARD          = FIRST_SYSTEM_WINDOW +4;
 
      信息窗口。用于显示toast。
      public static final int TYPE_TOAST            = FIRST_SYSTEM_WINDOW +5;
 
      系统顶层窗口。显示在其他一切内容之上。此窗口不能获得输入焦点，否则影响锁屏。
      public static final int TYPE_SYSTEM_OVERLAY    =  FIRST_SYSTEM_WINDOW +6;
 
      电话优先，当锁屏时显示。此窗口不能获得输入焦点，否则影响锁屏。
      public static final int TYPE_PRIORITY_PHONE    =  FIRST_SYSTEM_WINDOW +7;
 
      系统对话框。（例如音量调节框）。
      public static final int TYPE_SYSTEM_DIALOG     =  FIRST_SYSTEM_WINDOW +8;
 
      锁屏时显示的对话框。
      public static final int TYPE_KEYGUARD_DIALOG   =  FIRST_SYSTEM_WINDOW +9;
 
      系统内部错误提示，显示于所有内容之上。
      public static final int TYPE_SYSTEM_ERROR      =  FIRST_SYSTEM_WINDOW +10;
 
      内部输入法窗口，显示于普通UI之上。应用程序可重新布局以免被此窗口覆盖。
      public static final int TYPE_INPUT_METHOD      =  FIRST_SYSTEM_WINDOW +11;
 
      内部输入法对话框，显示于当前输入法窗口之上。
      public static final int TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW +12;
 
      墙纸窗口。
      public static final int TYPE_WALLPAPER         = FIRST_SYSTEM_WINDOW +13;
 
      状态栏的滑动面板。
      public static final int TYPE_STATUS_BAR_PANEL   = FIRST_SYSTEM_WINDOW +14;
 
      系统窗口结束。
      public static final int LAST_SYSTEM_WINDOW     = 2999;

关于Window的类型，主要有三种：
1 Application Windows：取值在 FIRST_APPLICATION_WINDOW 和 LAST_APPLICATION_WINDOW 之间。
是通常的、顶层的应用程序窗口。必须将token设置成activity的token。
2 Sub Windows：取值在 FIRST_SUB_WINDOW 和 LAST_SUB_WINDOW 之间。
与顶层窗口相关联，token必须设置为它所附着的宿主窗口的token。
3 System Windows：取值在 FIRST_SYSTEM_WINDOW 和 LAST_SYSTEM_WINDOW 之间。
用于特定的系统功能。它不能用于应用程序，使用时需要特殊权限，在manifest.xml中添加如下声明：

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

这三种类型的图层顺序是一次增高，即Application Windows在对底层，System Windows在最上层。看到这里我们再来看一下上面的代码，其中这样一句：

mWindowLayoutParams.type = android.view.WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;

Dialog是属于Sub Windows类型的，Toast是System Windows类型

Android WindowManager及其动画问题

来源：wangjinyu501的专栏

一、概述 开发中发现在WindowManager上像在Activity中使用动画效果无效，比如下面的代码：

?

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ImageView iv = new ImageView(this); iv.setImageResource(R.drawable.ic_launcher); TranslateAnimation animation = new TranslateAnimation(         Animation.ABSOLUTE, 20, Animation.ABSOLUTE, 300,         Animation.ABSOLUTE, 100, Animation.ABSOLUTE, 400); animation.setDuration(1000); animation.setFillAfter(false); iv.setAnimation(animation);   WindowManager mWindowManager = (WindowManager) this         .getSystemService(Context.WINDOW_SERVICE); WindowManager.LayoutParams mLayoutParams = new WindowManager.LayoutParams(); mLayoutParams.x = 20; mLayoutParams.y = 100; mLayoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT; mLayoutParams.width = WindowManager.LayoutParams.WRAP_CONTENT; mLayoutParams.gravity = Gravity.TOP; mLayoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE         | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE         | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON         | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN; mWindowManager.addView(iv, mLayoutParams);   animation.start();

二、分析 为什么会不执行动画呢，原因在于：the view which is going to be animated must not be directly added to the top window, because top window of android is not a real ViewGroup. so the view must be added to a ViewGroup like FrameLayout first and then this ViewGroup be added to the top window.意思是说动画执行的条件是不能直接添加到最顶层的Window，而是需要一个容器。比如，在xml中定义的控件就可以使用动画。 后来发现一种解决方案是WindowManager.LayoutParams有一个动画属性：windowAnimations，可以这样使用

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lp = new WindowManager.LayoutParams(LayoutParams.WRAP_CONTENT,                  LayoutParams.WRAP_CONTENT,                  WindowManager.LayoutParams.TYPE_PHONE,                  WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE                            | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE                            | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,                  PixelFormat.RGBA_8888);        lp.gravity = Gravity.LEFT |Gravity.TOP;        lp.windowAnimations = R.style.anim_view;//动画        wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);        wm.addView(view, lp);

但是，这是对整个View的一个动画，而不是View中某个控件的动画。而且，使用的时候需要在View状态改变的时候才会出现动画效果。比如消失/出现的时候才会有动画效果。因此这个方案也是行不通的。 既然WindowManager不是一个ViewGroup，那么就构造一个容器来装载WindowManager，可以如下：

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/** * */ package com.kince.apus.widget;   import com.kince.apus.R; import android.animation.Animator; import android.animation.Animator.AnimatorListener; import android.animation.AnimatorSet; import android.animation.ObjectAnimator; import android.content.Context; import android.graphics.PixelFormat; import android.os.Handler; import android.util.AttributeSet; import android.view.LayoutInflater; import android.view.View; import android.view.WindowManager; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.TextView;   /** * @author kince * @category Windowmanager在Layout中的应用 * * */ public class GuideLayout extends FrameLayout {        private WindowManager wManager;      private WindowManager.LayoutParams wmParams;      private View addView;        private TextView mTextView;      private ImageView mImageView;        private boolean isAddView;      private AnimatorSet mShowAnimatorSet, mHideAnimatorSet;        private Handler mHandler = new Handler() {           public void handleMessage(android.os.Message msg) {                super.handleMessage(msg);                  switch (msg.what) {                case 1:                     showAnimator();                     break;                  default:                     break;                }           };      };        /**      * @param context      */      public GuideLayout(Context context) {           this(context, null);           // TODO Auto-generated constructor stub      }        /**      * @param context      * @param attrs      */      public GuideLayout(Context context, AttributeSet attrs) {           this(context, attrs, 0);           // TODO Auto-generated constructor stub      }        /**      * @param context      * @param attrs      * @param defStyle      */      public GuideLayout(Context context, AttributeSet attrs, int defStyle) {           super(context, attrs, defStyle);           addView = LayoutInflater.from(context).inflate(R.layout.guide_layout,                     this);           mTextView = (TextView) addView.findViewById(R.id.tv);           mImageView = (ImageView) addView.findViewById(R.id.iv);           mTextView.setVisibility(View.GONE);           mImageView.setVisibility(View.GONE);           setAnimator();           getWindowManager(context);      }        /**      * @category 实例化WindowManager 初次模拟位置时候使用      * @param context      */      private void getWindowManager(final Context context) {           wManager = (WindowManager) context.getApplicationContext()                     .getSystemService(Context.WINDOW_SERVICE);           wmParams = new WindowManager.LayoutParams();           wmParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;           wmParams.format = PixelFormat.TRANSPARENT;           wmParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL                     | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE                     | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;           wmParams.gravity = 17;           wmParams.width = WindowManager.LayoutParams.MATCH_PARENT;           wmParams.height = WindowManager.LayoutParams.MATCH_PARENT;      }        private void setAnimator() {           mShowAnimatorSet = new AnimatorSet();           Animator[] showAnimator = new Animator[2];           showAnimator[0] = ObjectAnimator.ofFloat(mTextView, "alpha",                     new float[] { 0.0F, 1.0F });           showAnimator[1] = ObjectAnimator.ofFloat(mImageView, "alpha",                     new float[] { 0.0F, 1.0F });           mShowAnimatorSet.playTogether(showAnimator);           mShowAnimatorSet.setDuration(1500l);             mHideAnimatorSet = new AnimatorSet();           Animator[] hideAnimator = new Animator[2];           hideAnimator[0] = ObjectAnimator.ofFloat(mTextView, "alpha",                     new float[] { 1.0F, 0.0F });           hideAnimator[1] = ObjectAnimator.ofFloat(mImageView, "alpha",                     new float[] { 1.0F, 0.0F });           mHideAnimatorSet.playTogether(hideAnimator);           mHideAnimatorSet.setDuration(1500l);      }        public void showAnimator() {           mTextView.setVisibility(View.VISIBLE);           mImageView.setVisibility(View.VISIBLE);           mShowAnimatorSet.start();           isAddView=true;      }        public void hideAnimator() {           mHideAnimatorSet.start();           mHideAnimatorSet.addListener(new AnimatorListener() {                  @Override                public void onAnimationStart(Animator animation) {                     // TODO Auto-generated method stub                  }                  @Override                public void onAnimationRepeat(Animator animation) {                     // TODO Auto-generated method stub                  }                  @Override                public void onAnimationEnd(Animator animation) {                     // TODO Auto-generated method stub                     mTextView.setVisibility(View.INVISIBLE);                     mImageView.setVisibility(View.INVISIBLE);                }                  @Override                public void onAnimationCancel(Animator animation) {                     // TODO Auto-generated method stub                  }           });        }        public void sendMessage() {           if (isAddView) {                wManager.removeView(this);                mHandler.removeMessages(1);                isAddView=false;           }           mHandler.sendEmptyMessage(1);           wManager.addView(this, wmParams);      }   }

这样一来，就可以实现在WindowManager上的动画效果了。其实，造成这种现象的原因在于对AndroidAPI以及其体系的理解不够深刻。忽略了动画执行所需要的基本条件，影射的问题就是考虑问题不够全面。所以，不论开发哪种功能，使用哪个API，前期的规划、调研很重要。知己知彼，仅此而已。