4.progress&progressdialog

java代码

 1 package com.example.myapplication;
 2   
 3 import androidx.appcompat.app.AppCompatActivity;
 4   
 5 import android.app.Dialog;
 6 import android.app.ProgressDialog;
 7 import android.content.DialogInterface;
 8 import android.os.Bundle;
 9 import android.view.View;
10 import android.widget.Button;
11 import android.widget.Toast;
12   
13 public class proActivity extends AppCompatActivity {
14      private Button pro1,pro2;
15   
16     @Override
17     protected void onCreate(Bundle savedInstanceState) {
18         super.onCreate(savedInstanceState);
19         setContentView(R.layout.activity_pro);
20         pro1=findViewById(R.id.pro1);
21         pro2=findViewById(R.id.pro2);
22         pro1.setOnClickListener(new View.OnClickListener() {
23             @Override
24             public void onClick(View view) {
25                 ProgressDialog progressDialog=new ProgressDialog(proActivity.this);
26                 progressDialog.setTitle("登陆中~~~");
27                 progressDialog.setMessage("正在登陆");
28                 progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "取消登陆", new DialogInterface.OnClickListener() {
29                     @Override
30                     public void onClick(DialogInterface dialogInterface, int i) {
31                         Toast.makeText(proActivity.this,"取消登陆",Toast.LENGTH_SHORT).show();
32                     }
33                 });
34                 progressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
35                     @Override
36                     public void onCancel(DialogInterface dialogInterface) {
37                         Toast.makeText(proActivity.this,"加载完成",Toast.LENGTH_SHORT).show();
38                     }
39                 });
40                 progressDialog.show();
41             }
42         });
43         pro2.setOnClickListener(new View.OnClickListener() {
44             @Override
45             public void onClick(View view) {
46                 ProgressDialog progressDialog=new ProgressDialog(proActivity.this);
47                 progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
48                 progressDialog.setTitle("提示");
49                 progressDialog.setMessage("正在下载...");
50                 progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "继续下载", new DialogInterface.OnClickListener() {
51                     @Override
52                     public void onClick(DialogInterface dialogInterface, int i) {
53   
54                     }
55                 });
56                 progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "取消下载", new DialogInterface.OnClickListener() {
57                     @Override
58                     public void onClick(DialogInterface dialogInterface, int i) {
59   
60                     }
61                 });
62                 progressDialog.show();
63             }
64         });
65     }
66 }

xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:padding="15dp"
 6     android:orientation="vertical"
 7     >
 8     <Button
 9         android:layout_marginTop="200dp"
10         android:id="@+id/pro1"
11         android:layout_width="match_parent"
12         android:layout_height="wrap_content"
13         android:text="progressBar练习"
14         android:textAllCaps="false"
15         />
16   
17     <Button
18         android:layout_marginTop="200dp"
19         android:layout_width="match_parent"
20         android:layout_height="wrap_content"
21         android:text="progressDialog练习"
22         android:textAllCaps="false"
23         android:id="@+id/pro2"/>
24   
25 </LinearLayout>