奇怪的自定义控件

public class MaterialsView extends CardView {
private Paint paint ;
private Paint paint2 ;
private float redius=0;
private Bitmap bitmap;
private Bitmap bitmap2;
private boolean ishe;
private Matrix mMatrix;
public MaterialsView(Context context) {
this(context, null);
}

public MaterialsView(Context context, @Nullable AttributeSet attrs) {
    this(context, attrs, 0);
}

public MaterialsView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    bitmap2= bitmap = getBitmap(context, R.mipmap.ceshi);
    paint=new Paint();
    paint2=new Paint();
    paint.setAntiAlias(true);
    paint2.setAntiAlias(true);
    ishe=true;
}

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

    mMatrix =new Matrix();


}

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    RectF rectF= new RectF();
    rectF.left=0;
    rectF.top=0;
    rectF.right=getWidth();
    rectF.bottom=getHeight();
    canvas.drawBitmap(bitmap2,mMatrix,paint2);
    canvas.drawCircle(getWidth()/2,getHeight()/2,redius,paint);

}

private static Bitmap getBitmap(Context context,int vectorDrawableId) {
    Bitmap bitmap=null;
    if (Build.VERSION.SDK_INT>Build.VERSION_CODES.LOLLIPOP){
        Drawable vectorDrawable = context.getDrawable(vectorDrawableId);
        bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(),
                vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        vectorDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
        vectorDrawable.draw(canvas);
    }else {
        bitmap = BitmapFactory.decodeResource(context.getResources(), vectorDrawableId);
    }
    return bitmap;
}

@Override
public boolean onTouchEvent(MotionEvent event) {
    int action = event.getAction();

    //获取当前坐标
    switch (action) {
        case MotionEvent.ACTION_DOWN:
            ObjectAnimator.ofFloat(this, "translationZ", dip2px(getContext(),8)).setDuration(390).start();
            break;
        case MotionEvent.ACTION_MOVE:
            break;
        case MotionEvent.ACTION_UP:
            ObjectAnimator.ofFloat(this, "translationZ", dip2px(getContext(),2)).setDuration(390).start();
            handler.sendEmptyMessage(1);
            break;
    }
    return true;
}

@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
    getParent().requestDisallowInterceptTouchEvent(true);//请求父布局 不要拦截，那区域内 父布局事件不在响应
    return super.dispatchTouchEvent(ev);
}
public static int dip2px(Context context, float dipValue) {
    final float scale = context.getResources().getDisplayMetrics().density;
    return (int) (dipValue * scale + 0.5f);
}

Handler handler =new Handler(getContext().getMainLooper()){
    @Override
    public void handleMessage(@NonNull Message msg) {
        switch (msg.what){
            case 1:
                if(redius==0) {
                    bitmap2=bitmap;
                    if(ishe) {
                        Random random = new Random();
                        int color = Color.argb(255, random.nextInt(256), random.nextInt(256), random.nextInt(256));
                        bitmap = Bitmap.createBitmap(getWidth(), getHeight(),
                                Bitmap.Config.ARGB_8888);
                        bitmap.eraseColor(color);//填充颜色
                        ishe=false;
                        Log.e("TGA","纯色");
                    }else {
                        bitmap =  getBitmap(getContext(), R.mipmap.ceshi);
                        ishe=true;
                        Log.e("TGA","图片");
                    }

                    BitmapShader bitmapShader = new BitmapShader(bitmap, Shader.TileMode.MIRROR, Shader.TileMode.MIRROR);

                    // 设置变换矩阵
                    bitmapShader.setLocalMatrix(mMatrix);
                    paint.setShader(bitmapShader);


                    new Thread(() -> {
                        for (int i = 0; i < 24; i++) {
                            redius+=15;
                            handler.sendEmptyMessage(2);
                            try {
                                Thread.sleep(20);
                            } catch (InterruptedException e) {
                                e.printStackTrace();
                            }
                        }
                        redius = 0;
                    }).start();
                }
                break;
            case 2:
                invalidate();

                break;
        }
    }
};
复制代码

}