android自定义加载动画

来源：互联网发布：药学在职研究生知乎编辑：程序博客网时间：2024/05/16 09:42

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>  
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