Sm快递柜给图片设置点击下去颜色变深

package com.hatai.smartlokey.utils.image;import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.ColorMatrixColorFilter;
import android.util.AttributeSet;
import android.widget.ImageView;/*** Created by administrato on 2017/10/5.*/&＃64;SuppressLint("AppCompatCustomView")
public class MaskableImageView extends ImageView
{private boolean touchEffect &＃61; true;public final float[] BG_PRESSED &＃61; new float[] { 1, 0, 0, 0, -50, 0, 1,0, 0, -50, 0, 0, 1, 0, -50, 0, 0, 0, 1, 0 };public final float[] BG_NOT_PRESSED &＃61; new float[] { 1, 0, 0, 0, 0, 0,1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0 };public MaskableImageView(Context context) {super(context);}public MaskableImageView(Context context, AttributeSet attrs) {super(context, attrs);}public MaskableImageView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);}&＃64;Overridepublic void setPressed(boolean pressed) {System.out.println("setPressed");updateView(pressed);super.setPressed(pressed);}/*** 根据是否按下去来刷新bg和src*/private void updateView(boolean pressed){System.out.println("updateView");//如果没有点击效果if( !touchEffect ){return;}//end ifif( pressed ){//点击/*** 通过设置滤镜来改变图片亮度*/this.setDrawingCacheEnabled(true);this.setColorFilter( new ColorMatrixColorFilter(BG_PRESSED) ) ;this.getBackground().setColorFilter( new ColorMatrixColorFilter(BG_PRESSED) );}else{//未点击this.setColorFilter( new ColorMatrixColorFilter(BG_NOT_PRESSED) ) ;this.getBackground().setColorFilter(new ColorMatrixColorFilter(BG_NOT_PRESSED));}}
}