Android中Dialog对话框

布局文件xml：

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     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"
     tools:context=".DialogActivity" >

     <Button
         android:id="@+id/plainDialog"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="普通Dialog" />

     <Button
         android:id="@+id/plainDialogEvent"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="Dialog按钮事件集中处理" />

     <Button
         android:id="@+id/inputDialog"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="请输入框" />

     <Button
         android:id="@+id/listDialog"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="列表对话框" />

     <Button
         android:id="@+id/radioDialog"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="单选对话框" />

     <Button
         android:id="@+id/checkboxDialog"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="多选对话框" />

     <Button
         android:id="@+id/diyDialog"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="自定义布局对话框" />

 </LinearLayout>

Activity文件：

普通的dialog：

 private void plainDialogDemo() {

         Button plainBtn = (Button) findViewById(R.id.plainDialog);
         plainBtn.setOnClickListener(new OnClickListener() {

             public void onClick(View v) {

                 new AlertDialog.Builder(DialogActivity.this)
                         .setTitle("删除")
                         .setMessage("确定删除指定数据")
                         .setPositiveButton("确定",
                                 new DialogInterface.OnClickListener() {

                                     @Override
                                     public void onClick(DialogInterface dialog,
                                             int which) {
                                         Toast.makeText(getApplicationContext(),
                                                 "确定了", Toast.LENGTH_SHORT)
                                                 .show();
                                     }
                                 })
                         .setNegativeButton("取消",
                                 new DialogInterface.OnClickListener() {

                                     @Override
                                     public void onClick(DialogInterface dialog,
                                             int which) {
                                     }
                                 }).setCancelable(false).show();
             }
         });
     }

效果如下：

输入文本框的dialog：

 private void inputDialog() {
         Button inputBtn = (Button) findViewById(R.id.inputDialog);
         inputBtn.setOnClickListener(new OnClickListener() {

             @Override
             public void onClick(View v) {
                 // TODO Auto-generated method stub
                 final EditText et = new EditText(DialogActivity.this);
                 new AlertDialog.Builder(DialogActivity.this)
                         .setTitle("请输入数字")
                         .setView(et)
                         .setPositiveButton("确定",
                                 new DialogInterface.OnClickListener() {

                                     @Override
                                     public void onClick(DialogInterface dialog,
                                             int which) {
                                         // TODO Auto-generated method stub
                                         Toast.makeText(getApplicationContext(),
                                                 et.getText(),
                                                 Toast.LENGTH_SHORT).show();
                                     }
                                 }).setNegativeButton("取消", null)
                         .setCancelable(false).show();
             }
         });
     }

效果如下：

列表dialog：

private void listDialogDemo() {
        Button listBtn = (Button) findViewById(R.id.listDialog);
        listBtn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                final String[] names = { "C罗", "J罗", "H罗" };
                new AlertDialog.Builder(DialogActivity.this).setTitle("列表对话框")
                        .setItems(names, new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog,
                                    int which) {
                                Toast.makeText(DialogActivity.this,
                                        names[which], Toast.LENGTH_SHORT)
                                        .show();
                            }
                        }).setNegativeButton("取消", null).show();
            }
        });
    }

效果如下：

单选dialog：

 private void radioDialogDemo() {
         Button radioButton = (Button) findViewById(R.id.radioDialog);
         radioButton.setOnClickListener(new OnClickListener() {

             @Override
             public void onClick(View v) {

                 final String[] names = { "C罗", "J罗", "H罗" };
                 new AlertDialog.Builder(DialogActivity.this)
                         .setTitle("列表对话框")
                         .setSingleChoiceItems(names, 0,
                                 new DialogInterface.OnClickListener() {

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

                                         selecteName = names[which];
                                     }
                                 })
                         .setPositiveButton("确定",
                                 new DialogInterface.OnClickListener() {

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

                                         Toast.makeText(DialogActivity.this,
                                                 selecteName, Toast.LENGTH_SHORT)
                                                 .show();
                                     }
                                 }).setNegativeButton("取消", null).show();
             }
         });
     }

效果如下：

多选dialog：

 private void checkDialogDemo() {
         Button checkBtn = (Button) findViewById(R.id.checkboxDialog);
         checkBtn.setOnClickListener(new OnClickListener() {

             @Override
             public void onClick(View v) {
                 final String[] names = { "C罗", "J罗", "H罗" };
                 final boolean[] selected = new boolean[] { true, false, true };
                 new AlertDialog.Builder(DialogActivity.this)
                         .setMultiChoiceItems(
                                 names,
                                 selected,
                                 new DialogInterface.OnMultiChoiceClickListener() {

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

                                     }
                                 })
                         .setPositiveButton("确定",
                                 new DialogInterface.OnClickListener() {

                                     @Override
                                     public void onClick(DialogInterface dialog,
                                             int which) {
                                         StringBuilder sb = new StringBuilder(
                                                 "你选择了：");
                                         for (int i = 0; i < names.length; i++) {
                                             if (selected[i]) {
                                                 sb.append(names[i]);
                                             }
                                         }
                                         Toast.makeText(DialogActivity.this,
                                                 sb.toString(), 1).show();
                                     }
                                 }).setNegativeButton("取消", null).show();
             }
         });
     }

效果如下：

自定义dialog：

 private void customDialogDemo() {
         final AlertDialog dlg = new AlertDialog.Builder(this).create();
         dlg.show();
         Window window = dlg.getWindow();
         window.setContentView(R.layout.diylayout);
         ImageButton ok = (ImageButton) window.findViewById(R.id.btnok);
         ok.setOnClickListener(new View.OnClickListener() {

             @Override
             public void onClick(View v) {
                 Toast.makeText(getApplicationContext(), "关闭了",
                         Toast.LENGTH_SHORT).show();
                 dlg.dismiss();
             }
         });
     }

自定义布局：

 <?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="match_parent" >

     <ImageView
         android:id="@+id/dialogimg"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_centerInParent="true"
         android:src="@drawable/dialog_bg" />

     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@id/dialogimg"
         android:layout_alignTop="@id/dialogimg"
         android:layout_marginLeft="50dp"
         android:layout_marginTop="60dp"
         android:text="自定义的dialog" />

     <ImageButton
         android:id="@+id/btnok"
         android:layout_width="30dp"
         android:layout_height="30dp"
         android:layout_alignRight="@id/dialogimg"
         android:layout_alignTop="@id/dialogimg"
         android:layout_marginRight="15dp"
         android:layout_marginTop="15dp"
         android:background="@drawable/close_dialog" />

 </RelativeLayout>

效果如下：