Android UI控件详解-Dialog(对话框合集)

package com.example.dialog;import com.bdqn.dialog.R;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.View;import android.widget.Toast;/** *  * @author TXF *  */public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}// 警告对话框public void click01(View view) {AlertDialog.Builder builder = new Builder(this);builder.setTitle("对话框标题");builder.setIcon(R.drawable.ic_launcher);builder.setMessage("是否升级应用程序?");builder.setPositiveButton("确定", new OnClickListener() {@Overridepublic void onClick(DialogInterface diaog, int witch) {Toast.makeText(MainActivity.this, "确定被点击了", 0).show();}});builder.setNegativeButton("取消", new OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int witch) {// 这里注意下：当某个条目被选中的时候，要把dialog解散掉，// 系统会自动垃圾回收，主要是为了节省内存空间dialog.dismiss();}});// AlertDialog dialog = builder.create();// dialog.show();// 最后一步一定要调用show方法，否则对话框显示不出来builder.show();}// 单选对话框public void click02(View view) {AlertDialog.Builder builder = new Builder(this);builder.setTitle("单选框标题");builder.setIcon(R.drawable.ic_launcher);final String[] items = { "条目一", "条目二", "条目三" };// 设置单选条目监听器builder.setSingleChoiceItems(items, 0, new OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int witch) {Toast.makeText(MainActivity.this, items[witch] + "被选中了", 0).show();// 开发中一般在此处做事件处理dialog.dismiss();}});builder.setNegativeButton("取消", new OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int witch) {// 当某个条目被选中的时候，要把dialog解散掉，系统会自动垃圾回收，主要是为了节省内存空间dialog.dismiss();}});builder.show();}// 多选对话框public void click03(View view) {AlertDialog.Builder builder = new Builder(this);builder.setTitle("多选对话框");builder.setIcon(R.drawable.ic_launcher);final String[] items = { "条目一", "条目二", "条目三", "条目四" };builder.setMultiChoiceItems(items, new boolean[] { true, false, true,false }, new OnMultiChoiceClickListener() {@Overridepublic void onClick(DialogInterface dialog, int witch,boolean isChoiced) {Toast.makeText(MainActivity.this, items[witch] + isChoiced, 0).show();}});// 这里可以设置消极按钮取消，也可以直接设置Button取消builder.setNegativeButton("取消", new OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int witch) {// 解散对话框dialog.dismiss();}});builder.show();}// 进度对话框,不显示进度的@SuppressWarnings("deprecation")public void click04(View view) {ProgressDialog pd = new ProgressDialog(this);pd.setTitle("提醒");// 可以不设置，默认的样式是逆时针旋转的圆环pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);pd.setMessage("正在加载中...");pd.setCancelable(true);pd.setButton("取消", new OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {// cancel和dismiss的区别// 源码中：cancel方法里面调用了dismiss方法，区别在于 cancle会先发起回调 然后 再执行dismiss.dialog.cancel();}});pd.show();}// 进度条对话框,进度条都是比较特殊的控件，这些控件都是可以在子线程中更新ui的(是因为源码中已经通过handler吧消息发给了主线程)@SuppressWarnings("deprecation")public void click05(View view) {final ProgressDialog pd = new ProgressDialog(this);pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);pd.setTitle("正在下载...");pd.setCancelable(true);pd.setButton("取消", new OnClickListener() {@Overridepublic void onClick(final DialogInterface dialog, final int arg1) {dialog.cancel();}});// 不设置也行，默认最大进度为100 pd.setMax(100);pd.show();// 开启子线程模拟进度条的状态new Thread() {@Overridepublic void run() {for (int i = 0; i < 100; i++) {// 这里注意四，调用进度对话框的setProgress()放法，要把i传进去，否则没有状态显示pd.setProgress(i);try {Thread.sleep(20);} catch (InterruptedException e) {e.printStackTrace();}}// 执行完之后要把进度对话框dismiss掉，为了节省内存pd.dismiss();};}.start();}}

xml布局

<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" >    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:onClick="click01"        android:text="警告对话框" />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:onClick="click02"        android:text="单选对话框" />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:onClick="click03"        android:text="多选对话框" />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:onClick="click04"        android:text="进度对话框" />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:onClick="click05"        android:text="进度条对话框" /></LinearLayout>

效果图