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【Android学习笔记】自定义AlertDialog对话框

来源:程序员人生   发布时间:2015-02-06 09:23:12 阅读次数:2828次


(1)布局文件:

<RelativeLayout 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: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=".MainActivity" > <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginLeft="70dp" android:layout_marginTop="62dp" android:text="正告对话框" /> <Button android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/button1" android:layout_below="@+id/button1" android:layout_marginTop="64dp" android:text="多选对话框" /> <Button android:id="@+id/button3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/button2" android:layout_below="@+id/button2" android:layout_marginTop="60dp" android:text="单选对话框" /> </RelativeLayout>

(2)类的文件:

package com.example.alertdialog; import android.os.Bundle; import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.content.DialogInterface; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; /** * 正告对话框的使用 * * @author piaodangdehun * */ public class MainActivity extends Activity { private Button button1;// 正告对话框 private Button button2;// 多选对话框 private Button button3;// 单选对话框 private AlertDialog.Builder builder; // 为button1设定的对话框,当有1个对话框的时候可使用全局的定义 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button1 = (Button) this.findViewById(R.id.button1); button2 = (Button) this.findViewById(R.id.button2); button3 = (Button) this.findViewById(R.id.button3); /* * 1.正告对话框的设定 */ builder = new AlertDialog.Builder(this); builder.setTitle("提示框"); builder.setMessage("你肯定要删除吗?"); builder.setIcon(R.drawable.ic_launcher); // 设置图片 /* * 肯定对话框 */ builder.setPositiveButton("肯定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(MainActivity.this, "确认删除", 1).show(); } }); /* * 取消对话框 */ builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(MainActivity.this, "取消删除", 1).show(); } }); /* * 疏忽对话框 */ builder.setNeutralButton("疏忽", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(MainActivity.this, "疏忽删除", 1).show(); } }); button1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { builder.show(); } }); /* * 2.多选对话框 * 当有多个对话框的时候在具体的时间内不进行声明定义 */ button2.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { /* * 对话框的创建 */ AlertDialog.Builder builder = new AlertDialog.Builder( MainActivity.this); builder.setTitle("请选择爱好"); final String[] hobby = { "上网", "打游戏", "聊天" }; /* * 选择的列表 */ builder.setMultiChoiceItems(hobby, new boolean[] { true, false, false }, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { if (isChecked) { Toast.makeText(MainActivity.this, "-->>" + hobby[which], 1).show(); } } }); /* * 取消按钮 */ builder.setPositiveButton("肯定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); builder.show(); } }); /* * 3.单选对话框的设定 */ button3.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle("XX"); builder.setSingleChoiceItems(new String[]{"上网", "打游戏", "聊天"}, ⑴, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); builder.setPositiveButton("肯定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); builder.show(); } }); } /* * private final View.OnClickListener mylistenerClickListener = new * OnClickListener() { * * @Override public void onClick(View v) { // TODO Auto-generated method * stub * * } }; */ @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }

(3)结果展现



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