【实战】android中几个常用的对话框

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 {

@Override
protected 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() {

@Override
public 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() {

@Override
public 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(){

@Override
public 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.set

for (int i = 0; i < 100; i++) {
dialog.setProgress(i);
}
dialog.show();

// 隔 几秒中 去 消失
}

}