先上图：
点击“对话框1”，弹出如下对话框：
点击“对话框2”，弹出如下对话框：
点击“单选对话框”，弹出如下对话框：
点击“多选对话框”，弹出如下对话框：
点击“等待对话框”，弹出如下对话框：
点击“进度对话框”，弹出如下对话框：
源代码如下：
1 package com.example.day20_01dialogdemo;
2
3 import android.app.Activity;
4 import android.app.AlertDialog.Builder;
5 import android.app.ProgressDialog;
6 import android.content.DialogInterface;
7 import android.content.DialogInterface.OnClickListener;
8 import android.content.DialogInterface.OnMultiChoiceClickListener;
9 import android.content.Intent;
10 import android.net.Uri;
11 import android.os.Bundle;
12 import android.os.SystemClock;
13 import android.view.View;
14 import android.widget.Toast;
15
16 public class MainActivity extends Activity {
17
18 @Override
19 protected void onCreate(Bundle savedInstanceState) {
20 super.onCreate(savedInstanceState);
21 setContentView(R.layout.activity_main);
22 }
23
24 public void showDialog1(View v){
25
26 //Dialog实现1:
27 /* Builder builder = new Builder(this) ;
28 builder.setTitle("Android 培训");
29 builder.setMessage("是否浏览王道论坛？");
30 builder.setPositiveButton("确认", new OnClickListener() {
31 @Override
32 public void onClick(DialogInterface dialog, int which) {
33 // TODO Auto-generated method stub
34 Intent intent = new Intent();
35 intent.setAction(Intent.ACTION_VIEW);
36 Uri uri =Uri.parse("http://www.cskaoyan.com/");
37 intent.setData(uri);
38 //定义的intent里面么有规定type
39 startActivity(intent);
40
41 Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.cskaoyan.com/"));
42 startActivity(intent);
43 }
44 });
45 builder.setNegativeButton("取消", null);
46 builder.show();*/
47
48
49 //Dialog实现2
50 /* Builder builder = new Builder(this) ;
51 builder.setTitle("Android 培训");
52 builder.setMessage("是否浏览王道论坛？");
53 builder.setPositiveButton("确认", new OnClickListener() {
54 @Override
55 public void onClick(DialogInterface dialog, int which) {
56 // TODO Auto-generated method stub
57 Intent intent = new Intent();
58 intent.setAction(Intent.ACTION_VIEW);
59 Uri uri =Uri.parse("http://www.cskaoyan.com/");
60 intent.setData(uri);
61 //定义的intent里面么有规定type
62 startActivity(intent);
63
64 Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.cskaoyan.com/"));
65 startActivity(intent);
66 }
67 });
68 builder.setNegativeButton("取消", null);
69 Dialog dialog = builder.create();
70 dialog.show();*/
71
72 //Dialog实现3 Dialog 的链式调用实现
73 // Builder builder =
74 new Builder(this)
75 .setTitle("Android 培训")
76 .setMessage("是否浏览王道论坛？")
77 .setPositiveButton("确认", new OnClickListener() {
78 @Override
79 public void onClick(DialogInterface dialog, int which) {
80 // TODO Auto-generated method stub
81 Intent intent = new Intent();
82 intent.setAction(Intent.ACTION_VIEW);
83 Uri uri =Uri.parse("http://www.cskaoyan.com/");
84 intent.setData(uri);
85 //定义的intent里面么有规定type
86 startActivity(intent);
87 /*Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.cskaoyan.com/"));
88 startActivity(intent);*/
89 }
90 })
91 .setNegativeButton("取消", null)
92 .show();
93 // Toast.makeText(context, text, duration);
94 }
95
96
97 public void showDialog2(View v){
98 final String[] items = {"c","java" ,"c++"};
99 new Builder(this)
100 .setTitle("请选择学习的内容")
101 .setItems(items, new OnClickListener() {
102
103 @Override
104 public void onClick(DialogInterface dialog, int which) {
105 // TODO Auto-generated method stub
106 System.out
107 .println("MainActivity.showDialog2(...).new OnClickListener() {...}.onClick()"+which);
108 String choice = items[which];
109 Toast.makeText(MainActivity.this, choice, 1).show();
110 }
111 })
112 .show();
113 }
114
115 public void showDialog3(View v){
116 final String[] items = {"c","java" ,"c++"};
117 new Builder(this)
118 .setTitle("请选择学习的内容")
119 .setSingleChoiceItems(items, -1, new OnClickListener() {
120
121 @Override
122 public void onClick(DialogInterface dialog, int which) {
123 // TODO Auto-generated method stub
124 dialog.cancel();
125 Toast.makeText(MainActivity.this, items[which], 1).show();
126 }
127 })
128 .show();
129
130 }
131
132
133 public void showDialog4(View v){
134 final String[] items = {"c","java" ,"c++"};
135 new Builder(this)
136 .setTitle("请选择学习的内容")
137 .setMultiChoiceItems(items, new boolean[]{true,false,true}, new OnMultiChoiceClickListener() {
138
139 @Override
140 public void onClick(DialogInterface dialog, int which, boolean isChecked) {
141 // TODO Auto-generated method stub
142 if (isChecked) {
143 Toast.makeText(MainActivity.this, items[which], 1).show();
144 }
145 }
146 })
147 .setPositiveButton("确定", new OnClickListener() {
148
149 @Override
150 public void onClick(DialogInterface dialog, int which) {
151 // TODO Auto-generated method stub
152 dialog.cancel();
153 }
154 })
155 .show();
156 }
157
158 public void showDialog5(View v){
159
160 final ProgressDialog dialog = ProgressDialog.show(this, "警告", "我们正在升级系统，并不要乱按按钮。耐心等待");
161
162 new Thread(new Runnable() {
163
164 @Override
165 public void run() {
166 // TODO Auto-generated method stub
167 /*try {
168 Thread.sleep(2000);
169 } catch (InterruptedException e) {
170 // TODO Auto-generated catch block
171 e.printStackTrace();
172 }*/
173 SystemClock.sleep(2000);
174 dialog.cancel();
175 }
176 }).start();
177 }
178
179 public void showDialog6(View v){
180 final ProgressDialog dialog = new ProgressDialog(this);
181 dialog.setTitle("提示");
182 dialog.setMessage("我们正在下载，请耐心等待");
183 dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
184 dialog.setMax(100);
185
186 dialog.show();
187
188 new Thread(new Runnable() {
189 @Override
190 public void run() {
191 int i = 0;
192 while(true){
193
194 //ProgressBar 这种控件是可以在子线程里更新UI的
195 dialog.setProgress(i++);
196 SystemClock.sleep(100);
197 if (i>100) {
198 break;
199 }
200 }
201 dialog.cancel();
202
203 }
204 }).start();
205 }
206 }
1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 android:orientation="vertical" 3 xmlns:tools="http://schemas.android.com/tools" 4 android:layout_width="match_parent" 5 android:layout_height="match_parent" 6 android:paddingBottom="@dimen/activity_vertical_margin" 7 android:paddingLeft="@dimen/activity_horizontal_margin" 8 android:paddingRight="@dimen/activity_horizontal_margin" 9 android:paddingTop="@dimen/activity_vertical_margin" 10 tools:context="com.example.day20_01dialogdemo.MainActivity" > 11 12 <TextView 13 android:layout_width="wrap_content" 14 android:layout_height="wrap_content" 15 android:text="@string/hello_world" /> 16 17 <Button 18 android:layout_width="wrap_content" 19 android:layout_height="wrap_content" 20 android:text="对话框1" 21 android:onClick="showDialog1" /> 22 23 <Button 24 android:layout_width="wrap_content" 25 android:layout_height="wrap_content" 26 android:text="对话框2" 27 android:onClick="showDialog2" /> 28 29 <Button 30 android:layout_width="wrap_content" 31 android:layout_height="wrap_content" 32 android:text="单选对话框" 33 android:onClick="showDialog3" /> 34 35 <Button 36 android:layout_width="wrap_content" 37 android:layout_height="wrap_content" 38 android:text="多选对话框" 39 android:onClick="showDialog4" /> 40 41 <Button 42 android:layout_width="wrap_content" 43 android:layout_height="wrap_content" 44 android:text="等待对话框" 45 android:onClick="showDialog5" /> 46 47 <Button 48 android:layout_width="wrap_content" 49 android:layout_height="wrap_content" 50 android:text="进度对话框" 51 android:onClick="showDialog6"/> 52 </LinearLayout>
时间： 2024-10-10 02:17:31