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。
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。
4.CustomProgressDialog.java文件,这个是就是我们最终需要使用的progressDialog了。
5.接下来就是写一个测试activity调用我们的progressDialog了。这样我们需要的progressDialog效果就出来了
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:
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
<
item
name
=
"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
>
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
>
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 =
new
CustomProgressDialog(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
}
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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