progressDialog 自定义

 （1）自定义DefineProgressDialog类，继承ProgressDialog，复写onCreate（）方法

public class DefineProgressDialog extends ProgressDialog{

private String message;

private TextView define_progress_msg;

public DefineProgressDialog(Context context) {

super(context);
message = "正在载入...";
// TODO Auto-generated constructor stub 
}

public DefineProgressDialog(Context context,String message){

super(context);

this.message = message;
}
@Override

protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub 

super.onCreate(savedInstanceState);
setContentView(R.layout.define_progress_dialog);
define_progress_msg = (TextView) findViewById(R.id.define_progress_msg);
define_progress_msg.setText(message);
}


}

（2）define_progress_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/progress_background"

android:orientation="vertical"

android:paddingBottom="10sp"

android:paddingTop="10sp"

android:paddingLeft="10sp"

android:paddingRight="10sp" >
<ProgressBar
android:id="@+id/ios_progressbar"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_horizontal"

style="@style/DefineprogressBarStyleSmall"/>
<TextView
android:id="@+id/define_progress_msg"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_horizontal"

android:textSize="12sp"/>
</LinearLayout>

（3）设置进度条样式，自定义DefineprogressBarStyleSmall:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="DefineprogressBarStyleSmall" parent="android:style/Widget.ProgressBar">
<item name="android:indeterminateDrawable">@drawable/progress</item>
<item name="android:minWidth">48dp</item>
<item name="android:maxWidth">48dp</item>
<item name="android:minHeight">48dp</item>
<item name="android:maxHeight">48dp</item>
</style>
</resources>

（4）再定义一个进度条背景图片，设置该图片的动画，绕中心点旋转，在drawable下添加progress.xml：

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<rotate
android:pivotX="50%"

android:pivotY="50%"

android:fromDegrees="0"

android:toDegrees="360"

android:drawable="@drawable/progress_round"

>
</rotate>
</item>
</layer-list>