Android 自訂ProgressDialog

（1）自訂DefineProgressDialog類，繼承ProgressDialog，複寫onCreate（）方法

package com.lizhen.animation;import com.lizhen.key.study.R;import android.app.ProgressDialog;import android.content.Context;import android.os.Bundle;import android.widget.TextView;public class DefineProgressDialog extends ProgressDialog{private String message;private TextView define_progress_msg;public DefineProgressDialog(Context context) {super(context);message = "正在載入...";// TODO Auto-generated constructor stub}public DefineProgressDialog(Context context,String message){super(context);this.message = message;}@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.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_msg.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_bg"    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）設定進度條樣式，自訂DefineprogressBarStyleSmall，在style中添加define_progressbar:

<?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）再定義一個進度條背景圖片，設定該圖片的動畫，繞中心點旋轉，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>