- 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();
- }
- }
来源: http://www.phpxs.com/code/1002672/