Android开发之裁切（拍照+相冊）图像并设置头像小结

先看效果：

              
                      

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再贴代码：

自己定义选择照片底部弹出对话框布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:orientation="vertical" >

    <LinearLayout
        android:id="@+id/pop_layout"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:background="#312E3F"
        android:gravity="center_horizontal"
        android:orientation="vertical" >

        <Button
            android:id="@+id/takePhotoBtn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="10dip"
            android:layout_marginTop="10dp"
            android:background="@drawable/btn_bg_blue"
            android:padding="10dp"
            android:text="拍照"
            android:textColor="@color/colorwhite"
            android:textSize="18sp"
            android:textStyle="bold" />

        <Button
            android:id="@+id/pickPhotoBtn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="10dip"
            android:layout_marginTop="5dp"
            android:background="@drawable/btn_bg_blue"
            android:padding="10dp"
            android:text="从相冊选择"
            android:textColor="@color/colorwhite"
            android:textSize="18sp"
            android:textStyle="bold" />

        <Button
            android:id="@+id/cancelBtn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="15dip"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="10dip"
            android:layout_marginTop="20dp"
            android:background="@android:color/white"
            android:padding="10dp"
            android:text="取消"
            android:textColor="#373447"
            android:textSize="18sp"
            android:textStyle="bold" />
    </LinearLayout>

</RelativeLayout>

设备连接界面NavigationView header部分布局：

<?

xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/nav_headerView"
    android:layout_width="match_parent"
    android:layout_height="@dimen/nav_header_height"
    android:background="@drawable/drawer_background"
    android:gravity="bottom"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:theme="@style/ThemeOverlay.AppCompat.Dark">

    <com.aiofm.eminem.aiofmbgp.views.controls.CircleImage
        android:id="@+id/imageView"
        android:layout_width="80dp"
        android:layout_height="80dp"
        android:layout_centerHorizontal="true"
        android:paddingTop="@dimen/nav_header_vertical_spacing"
        android:src="@android:drawable/sym_def_app_icon" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="@dimen/nav_header_vertical_spacing"
        android:text="鲍光普"
        android:textAppearance="@style/TextAppearance.AppCompat.Body1" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="eminem13@mail.ustc.edu.cn" />

</LinearLayout>

文件操作工具类代码：

package com.aiofm.eminem.aiofmbgp.common;

/**
 * 文件工具类
 * Created by eminem on 2016/4/10
 */
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.os.Environment;

public class FileUtil {
    /**
     * 将Bitmap 图片保存到本地路径。并返回路径
     * @param c 上下文
     * @param fileName 文件名
     * @param bitmap 图片资源
     * @return
     * Added by Bao guangpu on 2016/4/10
     */
    public static String saveFile(Context c, String fileName, Bitmap bitmap) {
        return saveFile(c, "", fileName, bitmap);
    }

    /**
     * 保存位图文件
     * @param c 上下文
     * @param filePath 保存文件路径
     * @param fileName 文件名
     * @param bitmap 图片资源
     * @return
     * Added by Bao guangpu on 2016/4/10
     */
    public static String saveFile(Context c, String filePath, String fileName, Bitmap bitmap) {
        byte[] bytes = bitmapToBytes(bitmap);
        return saveFile(c, filePath, fileName, bytes);
    }

    /**
     * 将位图转换为字节数组
     * @param bm 图片资源
     * @return
     * Added by Bao guangpu on 2016/4/10
     */
    public static byte[] bitmapToBytes(Bitmap bm) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bm.compress(CompressFormat.JPEG, 100, baos);
        return baos.toByteArray();
    }

    /**
     * 保存字节数组文件
     * @param c 上下文
     * @param filePath 保存文件路径
     * @param fileName 文件名
     * @param bytes 字节数组
     * @return
     * Added by Bao guangpu on 2016/4/10
     */
    public static String saveFile(Context c, String filePath, String fileName, byte[] bytes) {
        String fileFullName = "";
        FileOutputStream fos = null;
        String dateFolder = new SimpleDateFormat("yyyyMMdd", Locale.CHINA)
                .format(new Date());
        try {
            String suffix = "";
            if (filePath == null || filePath.trim().length() == 0) {
                filePath = Environment.getExternalStorageDirectory() + "/JiaXT/" + dateFolder + "/";
            }
            File file = new File(filePath);
            if (!file.exists()) {
                file.mkdirs();
            }
            File fullFile = new File(filePath, fileName + suffix);
            fileFullName = fullFile.getPath();
            fos = new FileOutputStream(new File(filePath, fileName + suffix));
            fos.write(bytes);
        } catch (Exception e) {
            fileFullName = "";
        } finally {
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    fileFullName = "";
                }
            }
        }
        return fileFullName;
    }
}

自己定义ImageView代码：

package com.aiofm.eminem.aiofmbgp.views.controls;

/**
 * 自己定义ImageView
 * Created by eminem on 2016/4/11.
 */
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

import com.aiofm.eminem.aiofmbgp.R;

public class CircleImage extends ImageView {

    private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP;

    private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888;
    private static final int COLORDRAWABLE_DIMENSION = 1;

    private static final int DEFAULT_BORDER_WIDTH = 0;
    private static final int DEFAULT_BORDER_COLOR = Color.BLACK;

    private final RectF mDrawableRect = new RectF();
    private final RectF mBorderRect = new RectF();

    private final Matrix mShaderMatrix = new Matrix();
    private final Paint mBitmapPaint = new Paint();
    private final Paint mBorderPaint = new Paint();

    private int mBorderColor = DEFAULT_BORDER_COLOR;
    private int mBorderWidth = DEFAULT_BORDER_WIDTH;

    private Bitmap mBitmap;
    private BitmapShader mBitmapShader;
    private int mBitmapWidth;
    private int mBitmapHeight;

    private float mDrawableRadius;
    private float mBorderRadius;

    private boolean mReady;
    private boolean mSetupPending;

    public CircleImage(Context context) {
        super(context);
    }

    public CircleImage(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CircleImage(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        super.setScaleType(SCALE_TYPE);

        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CircleImageView, defStyle, 0);

        mBorderWidth = a.getDimensionPixelSize(R.styleable.CircleImageView_border_width, DEFAULT_BORDER_WIDTH);
        mBorderColor = a.getColor(R.styleable.CircleImageView_border_color, DEFAULT_BORDER_COLOR);

        a.recycle();

        mReady = true;

        if (mSetupPending) {
            setup();
            mSetupPending = false;
        }
    }

    @Override
    public ScaleType getScaleType() {
        return SCALE_TYPE;
    }

    @Override
    public void setScaleType(ScaleType scaleType) {
        if (scaleType != SCALE_TYPE) {
            throw new IllegalArgumentException(String.format("ScaleType %s not supported.", scaleType));
        }
    }

    @Override
    protected void onDraw(Canvas canvas) {
        if (getDrawable() == null) {
            return;
        }

        canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius, mBitmapPaint);
        canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius, mBorderPaint);
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        setup();
    }

    public int getBorderColor() {
        return mBorderColor;
    }

    public void setBorderColor(int borderColor) {
        if (borderColor == mBorderColor) {
            return;
        }

        mBorderColor = borderColor;
        mBorderPaint.setColor(mBorderColor);
        invalidate();
    }

    public int getBorderWidth() {
        return mBorderWidth;
    }

    public void setBorderWidth(int borderWidth) {
        if (borderWidth == mBorderWidth) {
            return;
        }

        mBorderWidth = borderWidth;
        setup();
    }

    @Override
    public void setImageBitmap(Bitmap bm) {
        super.setImageBitmap(bm);
        mBitmap = bm;
        setup();
    }

    @Override
    public void setImageDrawable(Drawable drawable) {
        super.setImageDrawable(drawable);
        mBitmap = getBitmapFromDrawable(drawable);
        setup();
    }

    @Override
    public void setImageResource(int resId) {
        super.setImageResource(resId);
        mBitmap = getBitmapFromDrawable(getDrawable());
        setup();
    }

    private Bitmap getBitmapFromDrawable(Drawable drawable) {
        if (drawable == null) {
            return null;
        }

        if (drawable instanceof BitmapDrawable) {
            return ((BitmapDrawable) drawable).getBitmap();
        }

        try {
            Bitmap bitmap;

            if (drawable instanceof ColorDrawable) {
                bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION, COLORDRAWABLE_DIMENSION, BITMAP_CONFIG);
            } else {
                bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), BITMAP_CONFIG);
            }

            Canvas canvas = new Canvas(bitmap);
            drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
            drawable.draw(canvas);
            return bitmap;
        } catch (OutOfMemoryError e) {
            return null;
        }
    }

    private void setup() {
        if (!mReady) {
            mSetupPending = true;
            return;
        }

        if (mBitmap == null) {
            return;
        }

        mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);

        mBitmapPaint.setAntiAlias(true);
        mBitmapPaint.setShader(mBitmapShader);

        mBorderPaint.setStyle(Paint.Style.STROKE);
        mBorderPaint.setAntiAlias(true);
        mBorderPaint.setColor(mBorderColor);
        mBorderPaint.setStrokeWidth(mBorderWidth);

        mBitmapHeight = mBitmap.getHeight();
        mBitmapWidth = mBitmap.getWidth();

        mBorderRect.set(0, 0, getWidth(), getHeight());
        mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2, (mBorderRect.width() - mBorderWidth) / 2);

        mDrawableRect.set(mBorderWidth, mBorderWidth, mBorderRect.width() - mBorderWidth, mBorderRect.height() - mBorderWidth);
        mDrawableRadius = Math.min(mDrawableRect.height() / 2, mDrawableRect.width() / 2);

        updateShaderMatrix();
        invalidate();
    }

    private void updateShaderMatrix() {
        float scale;
        float dx = 0;
        float dy = 0;

        mShaderMatrix.set(null);

        if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width() * mBitmapHeight) {
            scale = mDrawableRect.height() / (float) mBitmapHeight;
            dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f;
        } else {
            scale = mDrawableRect.width() / (float) mBitmapWidth;
            dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f;
        }

        mShaderMatrix.setScale(scale, scale);
        mShaderMatrix.postTranslate((int) (dx + 0.5f) + mBorderWidth, (int) (dy + 0.5f) + mBorderWidth);

        mBitmapShader.setLocalMatrix(mShaderMatrix);
    }

}

自己定义选择照片底部弹出对话框代码：

package com.aiofm.eminem.aiofmbgp.views.controls;

/**
 * Created by eminem on 2016/4/11.
 */
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.PopupWindow;

import com.aiofm.eminem.aiofmbgp.R;

public class SelectPicPopupWindow extends PopupWindow {

    private Button takePhotoBtn, pickPhotoBtn, cancelBtn;
    private View mMenuView;

    @SuppressLint("InflateParams")
    public SelectPicPopupWindow(Context context, OnClickListener itemsOnClick) {
        super(context);
        LayoutInflater inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        mMenuView = inflater.inflate(R.layout.layout_dialog_pic, null);
        takePhotoBtn = (Button) mMenuView.findViewById(R.id.takePhotoBtn);
        pickPhotoBtn = (Button) mMenuView.findViewById(R.id.pickPhotoBtn);
        cancelBtn = (Button) mMenuView.findViewById(R.id.cancelBtn);
        cancelBtn.setOnClickListener(itemsOnClick);
        pickPhotoBtn.setOnClickListener(itemsOnClick);
        takePhotoBtn.setOnClickListener(itemsOnClick);

        this.setContentView(mMenuView);
        this.setWidth(LayoutParams.MATCH_PARENT);
        this.setHeight(LayoutParams.WRAP_CONTENT);
        this.setFocusable(true);
        this.setAnimationStyle(R.style.PopupAnimation);
        ColorDrawable dw = new ColorDrawable(0x80000000);
        this.setBackgroundDrawable(dw);
        mMenuView.setOnTouchListener(new OnTouchListener() {

            @Override
            @SuppressLint("ClickableViewAccessibility")
            public boolean onTouch(View v, MotionEvent event) {

                int height = mMenuView.findViewById(R.id.pop_layout).getTop();
                int y = (int) event.getY();
                if (event.getAction() == MotionEvent.ACTION_UP) {
                    if (y < height) {
                        dismiss();
                    }
                }
                return true;
            }
        });

    }

}

设备连接界面部分相关代码：

NavigationView navigationView = (NavigationView) findViewById(R.id.nav_mainview);
        navigationView.setNavigationItemSelectedListener(this);
        View headerView = navigationView.getHeaderView(0);
        avatarImg = (CircleImage) headerView.findViewById(R.id.imageView);
        avatarImg.setOnClickListener(this);

 @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.imageView:
                menuWindow = new SelectPicPopupWindow(mContext, itemsOnClick);
                menuWindow.showAtLocation(findViewById(R.id.drawer_layout),
                        Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL, 0, 0);
                break;
        }
    }

private View.OnClickListener itemsOnClick = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            menuWindow.dismiss();
            switch (v.getId()) {
                case R.id.takePhotoBtn:
                    Intent takeIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                    takeIntent.putExtra(MediaStore.EXTRA_OUTPUT,
                            Uri.fromFile(new File(Environment.getExternalStorageDirectory(), IMAGE_FILE_NAME)));
                    startActivityForResult(takeIntent, REQUESTCODE_TAKE);
                    break;
                case R.id.pickPhotoBtn:
                    Intent pickIntent = new Intent(Intent.ACTION_PICK, null);
                    pickIntent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
                    startActivityForResult(pickIntent, REQUESTCODE_PICK);
                    break;
                default:
                    break;
            }
        }
    };

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
            case REQUESTCODE_PICK:
                try {
                    startPhotoZoom(data.getData());
                } catch (NullPointerException e) {
                    e.printStackTrace();
                }
                break;
            case REQUESTCODE_TAKE:
                File temp = new File(Environment.getExternalStorageDirectory() + "/" + IMAGE_FILE_NAME);
                startPhotoZoom(Uri.fromFile(temp));
                break;
            case REQUESTCODE_CUTTING:
                if (data != null) {
                    setPicToView(data);
                }
                break;
        }
        super.onActivityResult(requestCode, resultCode, data);
    }

    public void startPhotoZoom(Uri uri) {
        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(uri, "image/*");
        intent.putExtra("crop", "true");
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        intent.putExtra("outputX", 300);
        intent.putExtra("outputY", 300);
        intent.putExtra("return-data", true);
        startActivityForResult(intent, REQUESTCODE_CUTTING);
    }

    private void setPicToView(Intent picdata) {
        Bundle extras = picdata.getExtras();
        if (extras != null) {
            Bitmap photo = extras.getParcelable("data");
            Drawable drawable = new BitmapDrawable(null, photo);
            urlpath = FileUtil.saveFile(mContext, "temphead.jpg", photo);
            avatarImg.setImageDrawable(drawable);
        }
    }