View（视图）——进度对话框

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 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.hanqi.testapp2.TestActivity5"
11     android:orientation="vertical">
12 
13     <Button
14         android:layout_width="match_parent"
15         android:layout_height="wrap_content"
16         android:text="一般对话框"
17         android:onClick="bt1_OnClick"/>
18 
19     <Button
20         android:layout_width="match_parent"
21         android:layout_height="wrap_content"
22         android:text="单选对话框"
23         android:onClick="bt2_OnClick"/>
24 
25     <Button
26         android:layout_width="match_parent"
27         android:layout_height="wrap_content"
28         android:text="复选对话框"
29         android:onClick="bt3_OnClick"/>
30 
31     <Button
32         android:layout_width="match_parent"
33         android:layout_height="wrap_content"
34         android:text="自定义对话框"
35         android:onClick="bt4_OnClick"/>
36 
37     <Button
38         android:layout_width="match_parent"
39         android:layout_height="wrap_content"
40         android:text="登陆对话框"
41         android:onClick="bt5_OnClick"/>
42 
43     <Button
44         android:layout_width="match_parent"
45         android:layout_height="wrap_content"
46         android:text="日期对话框"
47         android:onClick="bt6_OnClick"/>
48 
49     <Button
50         android:layout_width="match_parent"
51         android:layout_height="wrap_content"
52         android:text="时间对话框"
53         android:onClick="bt7_OnClick"/>
54 
55     <Button
56         android:layout_width="match_parent"
57         android:layout_height="wrap_content"
58         android:text="普通进度对话框"
59         android:onClick="bt8_OnClick"/>
60 
61     <Button
62         android:layout_width="match_parent"
63         android:layout_height="wrap_content"
64         android:text="水平进度对话框"
65         android:onClick="bt9_OnClick"/>
66 
67     <TextView
68         android:layout_width="match_parent"
69         android:layout_height="wrap_content"
70         android:text="运行结果"
71         android:id="@+id/tv_2"/>
72 
73 </LinearLayout>

  1 package com.hanqi.testapp2;
  2 
  3 import android.app.AlertDialog;
  4 import android.app.DatePickerDialog;
  5 import android.app.ProgressDialog;
  6 import android.app.TimePickerDialog;
  7 import android.content.DialogInterface;
  8 import android.os.Bundle;
  9 import android.support.v7.app.AppCompatActivity;
 10 import android.view.View;
 11 import android.widget.DatePicker;
 12 import android.widget.EditText;
 13 import android.widget.ImageView;
 14 import android.widget.TextView;
 15 import android.widget.TimePicker;
 16 import android.widget.Toast;
 17 
 18 import java.util.Calendar;
 19 
 20 public class TestActivity5 extends AppCompatActivity {
 21 
 22     @Override
 23     protected void onCreate(Bundle savedInstanceState) {
 24         super.onCreate(savedInstanceState);
 25         setContentView(R.layout.activity_test5);
 26     }
 27  //普通进度对话框
 28     public void bt8_OnClick(View v)
 29     {
 30         final ProgressDialog progressDialog=new ProgressDialog(this);
 31 
 32         progressDialog.setMessage("请等待...");
 33         progressDialog.setTitle("进度对话框");
 34         progressDialog.setCancelable(false);
 35 
 36         progressDialog.show();
 37 
 38         //开启子线程
 39         //实现多线程：1.继承 2.实现接口
 40 
 41         //1.继承Thread，重写run()方法，调用start()
 42         new Thread(){
 43             @Override
 44             public void run() {
 45 
 46                 //业务代码
 47 
 48                 try {
 49                     //延时
 50                     Thread.sleep(3000);
 51                 }
 52                 catch (Exception e)
 53                 {
 54 
 55                 }
 56 
 57                 //执行完业务代码之后
 58                 //关闭
 59                 progressDialog.dismiss();
 60             }
 61         }.start();//start负责启动多线程，自动执行run()
 62 
 63 
 64     }
 65 
 66     //水平进度对话框
 67     public void bt9_OnClick(View v)
 68     {
 69         final ProgressDialog progressDialog=new ProgressDialog(this);
 70 
 71         progressDialog.setTitle("水平进度对话框");
 72         progressDialog.setMessage("正在加载...");
 73         progressDialog.setCancelable(false);
 74 
 75         //设置成水平
 76         progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
 77 
 78         progressDialog.show();
 79 
 80         final TextView tv_2=(TextView)findViewById(R.id.tv_2);
 81 
 82         //启动子线程  实现接口 Runnable,run()
 83         new Thread(new Runnable() {
 84             @Override
 85             public void run() {
 86 
 87                 //模拟进度变化
 88 
 89                 for(int i=0;i<=100;i++) {
 90                     progressDialog.setProgress(i);
 91 
 92                     try {
 93                         //延时  线程
 94                         Thread.sleep(200);
 95                     } catch (Exception e) {
 96 
 97                     }
 98                 }
 99 
100                 //在子线程里访问UI线程的View
101                 runOnUiThread(new Runnable() {
102                     @Override
103                     public void run() {
104 
105                         tv_2.setText("下载完成");
106                     }
107                 });
108 
109 
110                 //执行完业务代码之后
111                 //关闭
112                 progressDialog.dismiss();
113             }
114         }).start();
115     }
116 
117 }