【实战】android中几个常用的对话框

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几个常用对话框实现的源码：

activity_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=".MainActivity" ><Button     android:onClick="dialog01"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="创建确认取消对话框"    /><Button     android:onClick="dialog02"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="创建单选对话框"    /><Button     android:onClick="dialog03"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="创建多选对话框"    /><Button     android:onClick="dialog04"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="创建进度话框"    /><Button     android:onClick="dialog05"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="创建进度话框-带进度条的"    /></LinearLayout>

MainActivity.java

package com.itheima.dialogs;import android.app.Activity;import android.app.AlertDialog;import android.app.ProgressDialog;import android.content.DialogInterface;import android.os.Bundle;import android.view.View;import android.widget.Toast;/* *  先掌握前 三种  *  */public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}// 创建确认取消对话框public void dialog01(View v){AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("约会把...");builder.setMessage("告别单身, 你愿意吗 ?");builder.setPositiveButton("愿意,gogogo", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {Toast.makeText(MainActivity.this, "我也单身, 说不定 可以 来找我...", 0).show();}});builder.setNegativeButton("不愿意", null );builder.show();}//创建单选对话框public void dialog02(View v){AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("单选对话框 ");final String[] items = {"小丽","小红","小芳"};builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {Toast.makeText(MainActivity.this, " 被点击了 : " + items[which] +",位置: " +which, 0).show();}});builder.show();}//创建多选对话框public void dialog03(View v){AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("多选");// 这里不要设置 message //builder.setMessage("哈哈,你可以 选 多个 有兴趣去学习的 了 ???");final String[] items ={"android","ios","javaee","php","C++"};boolean[] checkedItems = {true,true,false,false,false};builder.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which,boolean isChecked) {Toast.makeText(MainActivity.this, " 被点击了 : " + items[which] +",位置: " +which+", 值是: "+ isChecked, 0).show();}});builder.show();}//创建进度话框public void dialog04(View v){// 很多 地方 , 干了 比较耗时的事儿 时 会使用到的 ProgressDialog dialog = new ProgressDialog(this);dialog.setMessage("正在拼命加载中....");dialog.show();////try {//Thread.sleep(3000);//dialog.dismiss();//} catch (InterruptedException e) {//e.printStackTrace();//}// 这行 代码 可以 让其 显示, 查看源代码 , 实际上是调用了  上面的这些代码 //ProgressDialog.show(this, "消息", "正在拼命加载中....").show();}//创建进度话框-带进度条的public void dialog05(View v){ProgressDialog dialog = new ProgressDialog(this);dialog.setMax(100);//dialog.setfor (int i = 0; i < 100; i++) {dialog.setProgress(i);}dialog.show();// 隔 几秒中 去 消失 }}

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