定制圆角带高亮的Android TV ImageView

package com.cmcc.hjkhtvmanager.widget;

import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.RectF;
import android.graphics.Xfermode;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.support.v4.app.FragmentActivity;
import android.util.AttributeSet;
import android.view.View;
import android.view.animation.DecelerateInterpolator;

import com.cmcc.hjkhtvmanager.R;

public class RoundStrokeImageView extends android.support.v7.widget.AppCompatImageView {

    private int mWidth;
    private int mHeight;

    private Paint mPaint;
    private RectF roundRectf;
    private Xfermode xfermode;

    private int roundRadis;
    private int strokWidth;
    private int strokeColor;

    private boolean focused;

    private boolean ifStroke;
    private boolean ifScale;

    AnimatorSet animatorSet = new AnimatorSet();//组合动画
    ObjectAnimator scaleX;
    ObjectAnimator scaleY;
    private float scaleRatio;

    public RoundStrokeImageView(Context context){
        this(context,null);
    }

    public RoundStrokeImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
        mPaint = new Paint();
        roundRectf = new RectF();
        xfermode = new PorterDuffXfermode(PorterDuff.Mode.SRC_IN);

        TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.RoundStrokeImageView);

        roundRadis = (int)typedArray.getDimension(R.styleable.RoundStrokeImageView_roundRadis,getResources().getDimension(R.dimen.px_positive_20));
        strokWidth = (int)typedArray.getDimension(R.styleable.RoundStrokeImageView_strokWidth,getResources().getDimension(R.dimen.px_positive_10));
        strokeColor = typedArray.getColor(R.styleable.RoundStrokeImageView_strokeColor,Color.parseColor("#FFFFFFFF"));