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package
com.phodev.andtools.widget;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.util.AttributeSet;import
android.widget.ImageView;/** *
圆角ImageView *
*
@author skg *
*/public
class
RoundImageView extends
ImageView { public
RoundImageView(Context context, AttributeSet attrs) { super(context,
attrs); init(); } public
RoundImageView(Context context) { super(context); init(); } private
final
RectF roundRect = new
RectF(); private
float
rect_adius = 6; 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(); }} |
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原文地址：http://blog.csdn.net/u014311077/article/details/42645587
