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我有以下代碼來製作ImageView循環。我如何用顏色實現邊框？我試圖實現一些解決方案，也在Stackoverflow上，但沒有成功。這裏目前的進展：帶邊框顏色的RoundedImageview
public class RoundedImageView extends ImageView {
public RoundedImageView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public RoundedImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public RoundedImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onDraw(Canvas canvas) {
Drawable drawable = getDrawable();
if (drawable == null) {
return;
}
if (getWidth() == 0 || getHeight() == 0) {
return;
}
Bitmap b = ((BitmapDrawable) drawable).getBitmap();
Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);
int w = getWidth(), h = getHeight();
int radius = w < h ? w : h;
Bitmap roundBitmap = getCroppedBitmap(bitmap, radius, w, h);
// roundBitmap= ImageUtils.setCircularInnerGlow(roundBitmap, 0xFFBAB399,
// 4, 1);
canvas.drawBitmap(roundBitmap, 0, 0, null);
}
public static Bitmap getCroppedBitmap(Bitmap bmp, int radius, int w, int h) {
Bitmap sbmp;
if (bmp.getWidth() != radius || bmp.getHeight() != radius) {
float _w_rate = 1.0f * radius/bmp.getWidth();
float _h_rate = 1.0f * radius/bmp.getHeight();
float _rate = _w_rate < _h_rate ? _h_rate : _w_rate;
sbmp = Bitmap.createScaledBitmap(bmp, (int)(bmp.getWidth() * _rate), (int)(bmp.getHeight() * _rate), false);
}
else
sbmp = bmp;
Bitmap output = Bitmap.createBitmap(sbmp.getWidth(), sbmp.getHeight(),
Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xffa19774;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, sbmp.getWidth(), sbmp.getHeight());
paint.setAntiAlias(true);
paint.setFilterBitmap(true);
paint.setDither(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(Color.parseColor("#BAB399"));
canvas.drawCircle(w/2, h/2, (w < h ? w : h)/2, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(sbmp, rect, rect, paint);
return output;
}
}