全屏旋转动画

<RotateImageView
            android:layout_centerInParent="true"
            android:scaleType="centerCrop"

public class RotateImageView extends ImageView{
    public RotateImageView(Context context) {
        super(context);
    }

    public RotateImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

        setMeasuredDimension((int) (Math.max(getScreenWidth(AppContext),getScreenheidth(AppContext))*1.2f), (int) (Math.max(getScreenWidth(AppContext),getScreenheidth(AppContext))*1.2f));
    }


    /**
     * 获取屏幕宽度
     */
    public static int getScreenWidth(Context context) {
        WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        return windowManager.getDefaultDisplay().getWidth();
    }

    public static int getScreenheidth(Context context) {
        WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        return windowManager.getDefaultDisplay().getHeight();
    }


}

记住 一定是大图