Android笔记 对话框demo大全

1布局文件

<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:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click1"
        android:text="通知对话框" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click2"
        android:text="显示单选对话框" />
    
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click3"
        android:text="显示复选框" />
    
     <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click4"
        android:text="进度框" />
     
     <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click5"
        android:text="进度条对话框" />

</LinearLayout>

2MainActivity

package com.example.a104_dailog;

import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.view.Menu;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	}

	public void click1(View view) {
		AlertDialog.Builder builder = new Builder(this);
		builder.setTitle("对话框标题");
		// 设置对话框的小图片
		builder.setIcon(R.drawable.ic_launcher);
		builder.setMessage("是否升级应用程序?");
		// 确认按钮
		builder.setPositiveButton("确定", new OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "点击了确定", Toast.LENGTH_SHORT)
						.show();
			}
		});

		// 取消按钮
		builder.setNegativeButton("取消", new OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "点击了取消", Toast.LENGTH_SHORT)
						.show();
			}
		});

		// AlertDialog dialog = builder.create();
		// dialog.show();
		builder.show();// 与上面两句话作用一致
	}

	public void click2(View view) {
		AlertDialog.Builder builder = new Builder(this);
		builder.setTitle("单选框");
		final String[] items = new String[] { "条目一", "条目二", "条目三" };
		// 参数二 -1表示没有默认选择项 0表示默认选择项第一条 1表示没有默认选择项第二条
		builder.setSingleChoiceItems(items, -1, new OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, items[which] + "被点击了",
						Toast.LENGTH_SHORT).show();
				// 点击关闭
				dialog.dismiss();
			}
		});
		// 确认按钮
		builder.setPositiveButton("确定", new OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "点击了确定", Toast.LENGTH_SHORT)
						.show();
			}
		});
		// 取消按钮
		builder.setNegativeButton("取消", new OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "点击了取消", Toast.LENGTH_SHORT)
						.show();
			}
		});
		builder.show();
	}

	public void click3(View view) {
		AlertDialog.Builder builder = new Builder(this);
		builder.setTitle("单选框");
		final String[] items = new String[] { "条目一", "条目二", "条目三", "条目四" };

		builder.setMultiChoiceItems(items, new boolean[] { true, false, false,
				true }, new OnMultiChoiceClickListener() {
			// which:哪个条目被点击 isChecked当前条目是否被选中
			@Override
			public void onClick(DialogInterface dialog, int which,
					boolean isChecked) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, items[which] + isChecked,
						Toast.LENGTH_SHORT).show();
			}
		});
		// 确认按钮
		builder.setPositiveButton("确定", new OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "点击了确定", Toast.LENGTH_SHORT)
						.show();
			}
		});
		// 取消按钮
		builder.setNegativeButton("取消", new OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "点击了取消", Toast.LENGTH_SHORT)
						.show();
			}
		});
		builder.show();
	}

	public void click4(View view) {
		ProgressDialog pd = new ProgressDialog(this);
		pd.setTitle("提醒");
		pd.setMessage("加载中...");
		pd.show();
	}

	public void click5(View view) {
		final ProgressDialog pd = new ProgressDialog(this);
		pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
		pd.setMax(100);
		pd.setTitle("提醒");
		pd.setMessage("加载中...");
		pd.show();
		new Thread() {
			public void run() {
				for (int i = 0; i < 100; i++) {
					try {
						// 特殊控件 可在子线程操作ui
						pd.setProgress(i);
						Thread.sleep(10);
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
				pd.dismiss();
			};
		}.start();

	}

}