StartActivityForResult实现确认对话框

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llDelete.setOnClickListener(new OnClickListener() {public void onClick(View v) {//删除弹出对话框showDeleteDialog();}});/** * 提示一个确认删除的对话框 * */public void showDeleteDialog(){Intent intent = new Intent();intent.setClass(ItemLongClickedActivity.this, DialogActivityOfComfirmDelete.class);//提示是否保存的ActivitystartActivityForResult(intent, REQUEST_CODE);}private int REQUEST_CODE = 0; private final int COMFIRM_DELETE = 5;private final int COMFIRM_NO_DELETE = 6;@Override      public void onActivityResult(int requestCode, int resultCode, Intent data)      {           super.onActivityResult(requestCode, resultCode, data);                      if(requestCode == REQUEST_CODE)         {         if(resultCode == COMFIRM_DELETE)//保存当前联系人         {         System.out.println("执行删除联系人的操作");                           }         if(resultCode == COMFIRM_NO_DELETE)//不保存         {         System.out.println("不删除联系人");                  }         }         }

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/** * 提示用户是否确认删除 * */public class DialogActivityOfComfirmDelete extends Activity{private final int COMFIRM_DELETE = 5;private final int COMFIRM_NO_DELETE = 6;private Button btnOk;private Button btnCancel;@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.dialog_activity_of_comfirm_delete);btnOk = (Button)findViewById(R.id.daocd_ok);btnCancel = (Button)findViewById(R.id.daocd_cancel);btnOk.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 确认删除delete();}});    btnCancel.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 取消删除noDelete();}});}public void delete(){Bundle bundle = new Bundle();      Intent intent = new Intent();      intent.putExtras(bundle);//用Intent保存对象      setResult(COMFIRM_DELETE, intent);      finish(); }public void noDelete(){Bundle bundle = new Bundle();      Intent intent = new Intent();      intent.putExtras(bundle);//用Intent保存对象      setResult(COMFIRM_NO_DELETE, intent);      finish(); }}

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<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical"    android:background="#ffffff" ><!-- 提示用户是否确认删除 -->     <TextView         android:layout_width="fill_parent"        android:layout_height="50dip"        android:gravity="center"        android:layout_weight="1"android:textSize="22dip"android:textColor="#ffffff"        android:text="温馨提示"        android:background="#33b5e5"        />    <TextView     android:id="@+id/daocd_tip"    android:layout_width="300dip"    android:layout_height="wrap_content"    android:layout_marginTop="25dip"    android:layout_marginBottom="25dip"android:gravity="center"    android:textSize="20dip"    android:singleLine="true"    android:textColor="#404040"    android:text="确认删除该联系人？"    />    <LinearLayout         android:orientation="horizontal"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:gravity="center_vertical"        android:background="#EDEDED"        >                <Button             android:id="@+id/daocd_ok"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_weight="1"            android:layout_marginLeft="10dip"            android:layout_marginRight="10dip"            android:layout_marginTop="8dip"            android:layout_marginBottom="4dip"            android:textColor="#404040"            android:textSize="20dip"            android:gravity="center"            android:text="是"/>                <Button             android:id="@+id/daocd_cancel"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_weight="1"            android:layout_marginLeft="10dip"            android:layout_marginRight="10dip"            android:layout_marginTop="8dip"            android:layout_marginBottom="4dip"            android:textColor="#404040"            android:textSize="20dip"            android:gravity="center"            android:text="否"/>            </LinearLayout></LinearLayout>

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