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Android 自定义progressDialog实现

 
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   我们在项目中经常会遇到这样一个应用场景:执行某个耗时操作时,为了安抚用户等待的烦躁心情我们一般会使用进度条之类的空间,在android中让大家最 容易想到的就是progressbar或者progressDialog,区别在于前者是一个控件,后者是对话框。由于一些需求在弹出进度条时不希望用户 能够操作其他控件,所以只能使用progressDialog,这个时候有遇到了一个问题,我不想要progressDialog的黑色框框,感觉这样跟 应用的整体风格不协调,这个时候就考虑了写一个自定义的progressDialog。
         在网上搜过很多自定义progressDialog的例子,对着写了下,但是没有任何效果,不知道是自己使用的方法不对还是什么地方出错了。通过不断的查找资料,写了一个简单的自定义progressDialog。先上图看下效果:

Android 自定义progressDialog实现

1.String.xml 文件,progressDialog是继承与Dialog,先设置一下progressDialog的风格,设置背景透明色。

01 <style name="CustomDialog" parent="@android:style/Theme.Dialog"
02     <item name="android:windowFrame">@null</item
03         <item name="android:windowIsFloating">true</item
04         <item name="android:windowContentOverlay">@null</item
05         <itemname="android:windowAnimationStyle">@android:style/Animation.Dialog</item
06         <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item
07     </style
08        
09     <style name="CustomProgressDialog" parent="@style/CustomDialog"
10         <item name="android:windowBackground">@android:color/transparent</item
11         <item name="android:windowNoTitle">true</item
12     </style>

2.customprogressdialog.xml文件,定义自己的布局,由于我的需求只需要一个进度条以及一串显示的内容,所以布局比较接单

01 <?xml version="1.0" encoding="utf-8"?> 
02 <LinearLayout 
03   xmlns:android="http://schemas.android.com/apk/res/android" 
04   android:layout_width="fill_parent" 
05   android:layout_height="fill_parent" 
06   android:orientation="horizontal"
07     <ImageView 
08         android:id="@+id/loadingImageView" 
09         android:layout_width="wrap_content" 
10         android:layout_height="wrap_content" 
11         android:background="@anim/progress_round"/> 
12     <TextView 
13         android:id="@+id/id_tv_loadingmsg" 
14         android:layout_width="wrap_content" 
15         android:layout_height="wrap_content" 
16         android:layout_gravity="center_vertical" 
17         android:textSize="20dp"/> 
18 </LinearLayout>

3.progress_round.xml文件.这个文件为了实现转动的效果,循环显示这些图片。

01 <?xml version="1.0" encoding="utf-8"?> 
02 <animation-list 
03     xmlns:android="http://schemas.android.com/apk/res/android" 
04     android:oneshot="false"
05     <item android:drawable="@drawable/progress_1" android:duration="200"/> 
06     <item android:drawable="@drawable/progress_2" android:duration="200"/> 
07     <item android:drawable="@drawable/progress_3" android:duration="200"/> 
08     <item android:drawable="@drawable/progress_4" android:duration="200"/> 
09     <item android:drawable="@drawable/progress_5" android:duration="200"/> 
10     <item android:drawable="@drawable/progress_6" android:duration="200"/> 
11     <item android:drawable="@drawable/progress_7" android:duration="200"/> 
12     <item android:drawable="@drawable/progress_8" android:duration="200"/> 
13 </animation-list>

4.CustomProgressDialog.java文件,这个是就是我们最终需要使用的progressDialog了。

01 /**************************************************************************************
02 * [Project]
03 *       MyProgressDialog
04 * [Package]
05 *       com.lxd.widgets
06 * [FileName]
07 *       CustomProgressDialog.java
08 * [Copyright]
09 *       Copyright 2012 LXD All Rights Reserved.
10 * [History]
11 *       Version          Date              Author                        Record
12 *--------------------------------------------------------------------------------------
13 *       1.0.0           2012-4-27         lxd (rohsuton@gmail.com)        Create
14 **************************************************************************************/
15      
16 package com.lxd.widgets;
17
18
19 import com.lxd.activity.R;
20
21 import android.app.Dialog;
22 import android.content.Context;
23 import android.graphics.drawable.AnimationDrawable;
24 import android.view.Gravity;
25 import android.widget.ImageView;
26 import android.widget.TextView;
27
28
29 /********************************************************************
30  * [Summary]
31  *       TODO 请在此处简要描述此类所实现的功能。因为这项注释主要是为了在IDE环境中生成tip帮助,务必简明扼要
32  * [Remarks]
33  *       TODO 请在此处详细描述类的功能、调用方法、注意事项、以及与其它类的关系.
34  *******************************************************************/
35
36 public class CustomProgressDialog extends Dialog {
37     private Context context = null;
38     private static CustomProgressDialog customProgressDialog = null;
39      
40     public CustomProgressDialog(Context context){
41         super(context);
42         this.context = context;
43     }
44      
45     public CustomProgressDialog(Context context, int theme) {
46         super(context, theme);
47     }
48      
49     public static CustomProgressDialog createDialog(Context context){
50         customProgressDialog = newCustomProgressDialog(context,R.style.CustomProgressDialog);
51         customProgressDialog.setContentView(R.layout.customprogressdialog);
52         customProgressDialog.getWindow().getAttributes().gravity = Gravity.CENTER;
53          
54         return customProgressDialog;
55     }
56   
57     public void onWindowFocusChanged(boolean hasFocus){
58          
59         if (customProgressDialog == null){
60             return;
61         }
62          
63         ImageView imageView = (ImageView) customProgressDialog.findViewById(R.id.loadingImageView);
64         AnimationDrawable animationDrawable = (AnimationDrawable) imageView.getBackground();
65         animationDrawable.start();
66     }
67   
68     /**
69      *
70      * [Summary]
71      *       setTitile 标题
72      * @param strTitle
73      * @return
74      *
75      */
76     public CustomProgressDialog setTitile(String strTitle){
77         return customProgressDialog;
78     }
79      
80     /**
81      *
82      * [Summary]
83      *       setMessage 提示内容
84      * @param strMessage
85      * @return
86      *
87      */
88     public CustomProgressDialog setMessage(String strMessage){
89         TextView tvMsg = (TextView)customProgressDialog.findViewById(R.id.id_tv_loadingmsg);
90          
91         if (tvMsg != null){
92             tvMsg.setText(strMessage);
93         }
94          
95         return customProgressDialog;
96     }
97 }

5.接下来就是写一个测试activity调用我们的progressDialog了。

01 package com.lxd.activity;
02
03 import com.lxd.widgets.CustomProgressDialog;
04
05 import android.app.Activity;
06 import android.os.AsyncTask;
07 import android.os.Bundle;
08 import android.view.Window;
09 import android.view.WindowManager;
10
11 public class MainFrame extends Activity {
12     private MainFrameTask mMainFrameTask = null;
13     private CustomProgressDialog progressDialog = null;
14      
15     @Override
16     public void onCreate(Bundle savedInstanceState) {
17         super.onCreate(savedInstanceState);
18         this.requestWindowFeature(Window.FEATURE_NO_TITLE);
19         this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
20         WindowManager.LayoutParams.FLAG_FULLSCREEN);
21          
22         setContentView(R.layout.main);
23          
24         mMainFrameTask = new MainFrameTask(this);
25         mMainFrameTask.execute();
26     }
27      
28     @Override
29     protected void onDestroy() {
30         stopProgressDialog();
31          
32         if (mMainFrameTask != null && !mMainFrameTask.isCancelled()){
33             mMainFrameTask.cancel(true);
34         }
35          
36         super.onDestroy();
37     }
38
39     private void startProgressDialog(){
40         if (progressDialog == null){
41             progressDialog = CustomProgressDialog.createDialog(this);
42             progressDialog.setMessage("正在加载中...");
43         }
44          
45         progressDialog.show();
46     }
47      
48     private void stopProgressDialog(){
49         if (progressDialog != null){
50             progressDialog.dismiss();
51             progressDialog = null;
52         }
53     }
54      
55     public class MainFrameTask extends AsyncTask<Integer, String, Integer>{
56         private MainFrame mainFrame = null;
57          
58         public MainFrameTask(MainFrame mainFrame){
59             this.mainFrame = mainFrame;
60         }
61          
62         @Override
63         protected void onCancelled() {
64             stopProgressDialog();
65             super.onCancelled();
66         }
67
68         @Override
69         protected Integer doInBackground(Integer... params) {
70              
71             try {
72                 Thread.sleep(10 1000);
73             catch (InterruptedException e) {
74                 e.printStackTrace();
75             }
76             return null;
77         }
78              
79         @Override
80         protected void onPreExecute() {
81             startProgressDialog();
82         }
83
84         @Override
85         protected void onPostExecute(Integer result) {
86             stopProgressDialog();
87         }
88              
89          
90          
91     }
92 }
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评论
2 楼 骑蚂蚁闯江湖 2012-09-06  
楼主 求那Animation-list中的几张图片啊 ! 能否发我邮箱357630106@qq.com  谢谢
1 楼 goonlove0 2012-06-22  
您好,能否上传一下那几张progress图片.

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