HSBImageView--android--可以设置HSB值的imageview

【HSBImageView--android--可以设置HSB值的imageview】亦余心之所善兮，虽九死其犹未悔。这篇文章主要讲述HSBImageView--android--可以设置HSB值的imageview相关的知识，希望能为你提供帮助。

package guide.yunji.com.guide.view; import android.content.Context; import android.content.res.TypedArray; import android.graphics.ColorMatrix; import android.graphics.ColorMatrixColorFilter; import android.graphics.drawable.Drawable; import android.support.annotation.Nullable; import android.support.v7.widget.AppCompatImageView; import android.util.AttributeSet; import guide.yunji.com.guide.R; public class HSBImageView extends AppCompatImageView { private static ColorMatrix colorMatrix = new ColorMatrix(); /** * 色调，改变颜色 */ private static ColorMatrix hueMatrix = new ColorMatrix(); /** * 饱和度，改变颜色的纯度 */ private static ColorMatrix saturationMatrix = new ColorMatrix(); /** * 亮度，控制明暗 */ private static ColorMatrix brightnessMatrix = new ColorMatrix(); private float hueValue = https://www.songbingjia.com/android/0f; private float saturationValue = 1f; private float brightnessValue = 1f; public HSBImageView(Context context) { super(context); }public HSBImageView(Context context, AttributeSet attrs) { this(context, attrs, 0); }public HSBImageView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.HSBImageView); hueValue = array.getFloat(R.styleable.HSBImageView_hueValue, 0f); saturationValue = array.getFloat(R.styleable.HSBImageView_saturationValue, 1f); brightnessValue = array.getFloat(R.styleable.HSBImageView_brightnessValue, 1f); array.recycle(); //释放资源 setHSB(hueValue, saturationValue, brightnessValue); }@Override public void setImageResource(int resId) { super.setImageResource(resId); setHSB(hueValue, saturationValue, brightnessValue); }private void setHSB(float hueValue, float saturationValue, float brightnessValue) { //设置色相，为0? 和360的时候相当于原图 hueMatrix.reset(); hueMatrix.setRotate(0, hueValue); hueMatrix.setRotate(1, hueValue); hueMatrix.setRotate(2, hueValue); //设置饱和度，为1的时候相当于原图 saturationMatrix.reset(); saturationMatrix.setSaturation(saturationValue); //亮度，为1的时候相当于原图 brightnessMatrix.reset(); brightnessMatrix.setScale(brightnessValue, brightnessValue, brightnessValue, 1); //将上面三种效果和选中的模式混合在一起 colorMatrix.reset(); colorMatrix.postConcat(hueMatrix); colorMatrix.postConcat(saturationMatrix); colorMatrix.postConcat(brightnessMatrix); setColorFilter(new ColorMatrixColorFilter(colorMatrix)); } }

< declare-styleable name="HSBImageView"> < !--name：自定义属性名，format：自定义属性数据类型--> < attr name="hueValue" format="float"> < /attr> < attr name="saturationValue" format="float"> < /attr> < attr name="brightnessValue" format="float"> < /attr> < /declare-styleable>

< guide.yunji.com.guide.view.HSBImageView android:layout_width="match_parent" android:layout_height="match_parent" app:saturationValue="https://www.songbingjia.com/android/1.8" app:brightnessValue="https://www.songbingjia.com/android/1.0" android:id="@+id/shade"/>

可以设置HSB值的imageview