android自定义加载动画

http://blog.csdn.net/u012483116/article/details/51192564

1.首先为动画的布局

[html]  view plain  copy   <?xml version="1.0" encoding="utf-8"?>   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"       android:layout_width="match_parent"       android:layout_height="match_parent"       android:background="@drawable/bg_transparent">          <LinearLayout           android:layout_width="wrap_content"           android:layout_height="wrap_content"           android:layout_centerInParent="true"           android:background="@drawable/progress_pop_bg"           android:orientation="vertical"           android:padding="30dp">              <ProgressBar               android:layout_width="wrap_content"               android:layout_height="wrap_content"               android:indeterminateDrawable="@anim/anim_progress"               android:indeterminateDuration="1000" />           <TextView               android:id="@+id/tv_progress"               android:layout_width="wrap_content"               android:layout_height="wrap_content"               android:layout_gravity="center_horizontal"               android:layout_marginTop="20dp"               android:background="@color/white"               android:text="加载中..."               android:textColor="#f976a8" />       </LinearLayout>         </RelativeLayout>   2.为加载动画的工具类

[java]  view plain  copy   import android.app.Activity;   import android.app.AlertDialog;   import android.app.ProgressDialog;   import android.content.Context;   import android.graphics.drawable.BitmapDrawable;   import android.view.Gravity;   import android.view.LayoutInflater;   import android.view.View;   import android.view.ViewGroup;   import android.widget.PopupWindow;      import com.js.phoneforplatform.R;      /**   * Created by Administrator on 2016/4/15.   */   public class ProgressUtils {       private static PopupWindow mPopupWindow;       public static void showProgress(Context context) {           View progressView = LayoutInflater.from(context).inflate(R.layout.layout_progress, null);           showPopupWindow(progressView);       }                private static void showPopupWindow(View popupView) {           mPopupWindow = new PopupWindow(popupView, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);           mPopupWindow.setFocusable(true);           mPopupWindow.setOutsideTouchable(false);           mPopupWindow.update();           mPopupWindow.setBackgroundDrawable(new BitmapDrawable());           mPopupWindow.showAtLocation(popupView, Gravity.CENTER, 0, 0);       }          public static void dismissProgress() {           if (mPopupWindow != null && mPopupWindow.isShowing()) {               mPopupWindow.dismiss();           }       }   }   3.调用方法很简单开始加载为 ProgressUtils. showPopupWindow(this)。停止为ProgressUtils. dismissProgress()；

4.用到的附件：

progress_pop_bg.xml

[html] view plain copy <?xml version="1.0" encoding="utf-8"?>  <shape xmlns:android="http://schemas.android.com/apk/res/android"      android:shape="rectangle">      <corners android:radius="2dp"></corners>      <solid android:color="@color/white"></solid>      <stroke          android:width="1dp"          android:color="@color/white"></stroke>    </shape>   anim_progress.xml [html] view plain copy <?xml version="1.0" encoding="utf-8"?>  <rotate xmlns:android="http://schemas.android.com/apk/res/android"      android:drawable="@drawable/search_buffer"      android:pivotX="50%"      android:pivotY="50%">  </rotate>   图片

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