android基礎篇：提示框AlertDialog執行個體

標籤：

string.xml

<?xml version="1.0" encoding="utf-8"?>  <resources>      <string name="app_name">TestBase</string>      <string name="city_name">城市</string>      <string name="city_default">北京</string>      <string name="btn_yesorno">是否選擇提示框</string>      <string name="btn_listitem">列表選擇提示框</string>  </resources>  

　　

main.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"      tools:context="com.mytest.testbase.MainActivity" >        <TextView          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:text="@string/city_name" />        <EditText          android:id="@+id/city_name"          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:hint="@string/city_default"          android:inputType="text" />        <Button          android:id="@+id/btn_yesorno"          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:onClick="YesOrNoOnClick"          android:text="@string/btn_yesorno" />            <Button          android:id="@+id/btn_listitem"          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:onClick="ListItemOnClick"          android:text="@string/btn_listitem" />                <TextView          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:id="@+id/tv_result" />                    </LinearLayout>  

　　

activity.java

package com.mytest.testbase;    import android.app.Activity;  import android.app.AlertDialog;  import android.app.AlertDialog.Builder;  import android.content.DialogInterface;  import android.os.Bundle;  import android.view.View;  import android.widget.TextView;  import android.widget.Toast;    public class MainActivity extends Activity {        private TextView textview_result;        @Override      protected void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_main);            textview_result = (TextView) this.findViewById(R.id.tv_result);      }        /**      * 是否選擇提示框      *       * @param view      */      public void YesOrNoOnClick(View view) {            Builder builder = new AlertDialog.Builder(this);            builder.setMessage("確認刪除嗎？").setPositiveButton("是", new DialogInterface.OnClickListener() {                @Override              public void onClick(DialogInterface dialog, int which) {                  // Toast.makeText(getApplicationContext(), "刪除成功",                  // Toast.LENGTH_SHORT).show();                  textview_result.setText("刪除成功");              }          }).setNegativeButton("否", new DialogInterface.OnClickListener() {                @Override              public void onClick(DialogInterface dialog, int which) {                  // Toast.makeText(getApplicationContext(), "刪除失敗",                  // Toast.LENGTH_SHORT).show();                  textview_result.setText("刪除失敗");              }            });            AlertDialog dialog = builder.create();          dialog.show();      }        /**      * 清單項目選擇提示框      *       * @param view      */      public void ListItemOnClick(View view) {          Builder builder = new AlertDialog.Builder(this);          final String[] cities = { "廣州", "上海", "北京", "香港", "澳門" };          builder.setTitle("選擇城市").setItems(cities, new DialogInterface.OnClickListener() {                @Override              public void onClick(DialogInterface dialog, int which) {                  textview_result.setText("選擇的城市是" + cities[which]);              }            });            AlertDialog dialog = builder.create();          dialog.show();      }    }  

　　

android基礎篇：提示框AlertDialog執行個體