Android Dialog AlertDialog

1、普通的对话框

　　

　　　　

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:gravity="center"
     android:orientation="vertical" >

     <ProgressBar
         android:id="@+id/progressBar1"
         style="?android:attr/progressBarStyleLarge"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />

 </LinearLayout>

Dialog_progress.xml

 public class MyDialog extends Dialog{

     //必须要给构造方法
     public MyDialog(Context context) {
         //也可以在构建Dialog对象的时候就给指定Dialog样式
         //使用主题来修改Dialog样式，在res/values/styles.xml中添加自定义主题
         super(context,R.style.DialogTheme);
     }

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         //这个可以不要标题。通过getWindow().requestFeature(featureId)方法
         //getWindow().requestFeature(Window.FEATURE_NO_TITLE);
         setContentView(R.layout.dialog_progress);
     }

     /**
      * 一个Activity或者一个Dialog刚刚出现在用户面前的时候，焦点改变调用onWindowFocusChanged
      */
     @Override
     public void onWindowFocusChanged(boolean hasFocus) {
         super.onWindowFocusChanged(hasFocus);
     }
 }

MyDialog

 // 普通对话框
     public void dialog1(View v) {
         MyDialog dialog = new MyDialog(this);
         dialog.setTitle("这是进度Dialog");
         // 显示对话框
         dialog.show();

         // 关闭对话框用
         // dialog.dismiss();
     }

普通对话框

2、警告对话框AlertDialog setMessage

 //AlertDialog  setMessage
     public void dialog2(View v) {
         AlertDialog.Builder dialog = new AlertDialog.Builder(this);
         dialog.setTitle("警告！").setIcon(R.drawable.ic_launcher)
                 .setMessage("前方高能")
                 // 注意这个导的包是import android.content.DialogInterface.OnClickListener;
                 .setPositiveButton("OK", new OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                         Toast.makeText(MainActivity.this, "您选择了OK",
                                 Toast.LENGTH_SHORT).show();

                     }
                 })
                 .setNegativeButton("Cancel", new OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                         Toast.makeText(MainActivity.this, "您选择了Cancel",
                                 Toast.LENGTH_SHORT).show();
                     }
                 })
                 .setNeutralButton("Ignore", new OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                         Toast.makeText(MainActivity.this, "您选择了Ignore",
                                 Toast.LENGTH_SHORT).show();
                     }
                 })
                 .create().show();
     }

警告对话框，setMessage

3、菜单对话框AlertDialog setItem

 //菜单选择，  setItem 如果设置setMessage，那么只会显示Message
     String[] setting = {"声音","存储","显示","应用","语言和输入法","流量使用情况","WLAN"};
     public void dialog3(View v){
         new AlertDialog.Builder(this)
         .setTitle("设置")
         .setIcon(R.drawable.setting)
         //which代表第几项，item点击后自动关闭，不需要Button
         .setItems(setting, new OnClickListener() {
             @Override
             public void onClick(DialogInterface dialog, int which) {
                 Toast.makeText(MainActivity.this, setting[which], Toast.LENGTH_SHORT).show();
             }
         })
         .create().show();
     }

菜单对话框 setItem

4、单选对话框AlertDialog setSingleChoiceItems

 //单选对话框，setItem
     String[] hobby = {"唱歌","跑步","武术","乒乓球","敲代码"};
     int choice = 0;
     public void dialog4(View v){
         new AlertDialog.Builder(this)
         .setTitle("爱好单选")
         .setIcon(R.drawable.hobby)
         //0代表默认选中第一个,选中不会自动关闭
         .setSingleChoiceItems(hobby, 0, new OnClickListener() {
             @Override
             public void onClick(DialogInterface dialog, int which) {
                 choice = which;
             }
         })
         //Button上的which永远为0，所以这里需要一个变量来保存选中的ItemID
         .setPositiveButton("ok", new OnClickListener() {
             @Override
             public void onClick(DialogInterface dialog, int which) {
                 Toast.makeText(MainActivity.this, hobby[choice], Toast.LENGTH_SHORT).show();
             }
         })
         .setNegativeButton("cancel",null)
         .create().show();
     }

单选对话框 setSingleChoiceItems

5、多选对话框AlertDialog setMultiChoiceItem

 String[] hobby = {"唱歌","跑步","武术","乒乓球","敲代码"};
     boolean[] bool = {false,false,false,false,false};
     List<String> list = new ArrayList<String>();
     public void dialog5(View v){
         new AlertDialog.Builder(this)
         .setTitle("爱好可多选")
         .setIcon(R.drawable.hobby)
         //默认选中了哪些，点击也不会自动关闭
         .setMultiChoiceItems(hobby, bool, new OnMultiChoiceClickListener() {
             @Override
             public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                 if(isChecked){
                     list.add(hobby[which]);
                 }else{
                     list.remove(hobby[which]);
                 }
             }
         })
         .setPositiveButton("ok", new OnClickListener() {
             @Override
             public void onClick(DialogInterface dialog, int which) {

                 Toast.makeText(MainActivity.this, list.toString(), Toast.LENGTH_SHORT).show();

             }
         }).create().show();
     }

多选对话框AlertDialog setMultiChoiceItem

6、适配器对话框AlertDialog setAdapter

 public void dialog6(View v){
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, hobby);
         new AlertDialog.Builder(this)
         .setTitle("适配器对话框")
         //和setItem一样，选中之后对话框就自动消失，不需要Button
         .setAdapter(adapter, new OnClickListener() {
             @Override
             public void onClick(DialogInterface dialog, int which) {
                 Toast.makeText(MainActivity.this, hobby[which], Toast.LENGTH_SHORT).show();

             }
         }).create().show();
     }

适配器对话框AlertDialog setAdapter

7、自定义对话框AlertDialog setView

自定义对话框AlertDialog setView

8、关闭对话框AlertDialog dismisson

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical" >
     <ImageView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:src="@drawable/ic_launcher"/>

     <EditText
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:hint="关闭对话框请点击关闭按钮"/>

     <TextView
         android:id="@+id/finish"
         android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="关闭"/>

 </LinearLayout>

Dialog_dismiss.xml

 public void dialog8(View v){
         View layout = getLayoutInflater().inflate(R.layout.dialog_dismiss, null);
         TextView finish = (TextView) layout.findViewById(R.id.finish);
         final AlertDialog dialog = new AlertDialog.Builder(MainActivity.this)
         .setTitle("可关闭的对话框")
         .setView(layout)
         .create();
         dialog.show();
         finish.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 dialog.dismiss();
             }
         });

         //有时候用户可能点到了外部，dialog就直接关闭了，而程序不知道，这时候就需要设置
         dialog.setCancelable(false);
         dialog.setOnDismissListener(new OnDismissListener() {
             @Override
             public void onDismiss(DialogInterface dialog) {
                 Toast.makeText(MainActivity.this, "关闭", Toast.LENGTH_SHORT).show();

             }
         });
     }

关闭对话框 AlertDialog setView