RoundImageView60dip.java
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package com.hjx.personalcenter.View;
import android.content.Context;
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.support.v7.widget.AppCompatImageView;
import android.util.AttributeSet;
import com.hjx.personalcenter.activity.MyApplication;
/**
*
* @author skg
*/
public class RoundImageView60dip extends AppCompatImageView {
public RoundImageView60dip(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public RoundImageView60dip(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
public RoundImageView60dip(Context context) {
super(context);
init();
}
private final RectF roundRect = new RectF();
private float rect_adius = dip2px(60);
private final Paint maskPaint = new Paint();
private final Paint zonePaint = new Paint();
private void init() {
maskPaint.setAntiAlias(true);
maskPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
//
zonePaint.setAntiAlias(true);
zonePaint.setColor(Color.WHITE);
//
/*float density = getResources().getDisplayMetrics().density;
rect_adius = rect_adius * density;*/
}
public void setRectAdius(float adius) {
rect_adius = adius;
invalidate();
}
@Override
protected void onLayout(boolean changed, int left, int top, int right,
int bottom) {
super.onLayout(changed, left, top, right, bottom);
int w = getWidth();
int h = getHeight();
roundRect.set(0, 0, w, h);
}
@Override
public void draw(Canvas canvas) {
canvas.saveLayer(roundRect, zonePaint, Canvas.ALL_SAVE_FLAG);
canvas.drawRoundRect(roundRect, rect_adius, rect_adius, zonePaint);
//
canvas.saveLayer(roundRect, maskPaint, Canvas.ALL_SAVE_FLAG);
super.draw(canvas);
canvas.restore();
}
/**
* �����ֻ��ķֱ��ʴ� dp �ĵ�λ ת��Ϊ px(����)
*/
public static int dip2px(float dpValue) {
final float scale = MyApplication.getInstance().getResources()
.getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
}