Question

我舍入了图像视图，但图像视图的图片不圆？

我使用eclipse和XML

我该怎么办？看到这张图片：

Answer 1

您可以使用此

Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.image);
RoundedBitmapDrawable circularBitmapDrawable = RoundedBitmapDrawableFactory.create(getResources(), bitmap);
circularBitmapDrawable.setCircular(true);
userImage.setImageDrawable(circularBitmapDrawable);

Answer 2

你的ImageView的问题是你的ImageViews背景是圆形的，但是你在android中设置的图像：src =＆＃34;＆＃34;是不圆的，这就是为什么你得到像这样的图像

我几天前也在寻找一个圆形的ImageView，我发现这可以使任何ImageView在不使用任何库的情况下进行四舍五入

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 = null;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP 
        && drawable instanceof VectorDrawable) {
        ((VectorDrawable) drawable).draw(canvas);
        b = Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas c = new Canvas();
        c.setBitmap(b);
        drawable.draw(c);
    } 
    else {
        b = ((BitmapDrawable) drawable).getBitmap();
    }

    Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);

    int w = getWidth(), h = getHeight();

    Bitmap roundBitmap =  getCroppedBitmap(bitmap, w);
    canvas.drawBitmap(roundBitmap, 0,0, null);
}

public static Bitmap getCroppedBitmap(Bitmap bmp, int radius) {
    Bitmap sbmp;
    if(bmp.getWidth() != radius || bmp.getHeight() != radius)
        sbmp = Bitmap.createScaledBitmap(bmp, radius, radius, 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(sbmp.getWidth() / 2+0.7f, sbmp.getHeight() / 2+0.7f,
            sbmp.getWidth() / 2+0.1f, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(sbmp, rect, rect, paint);


    return output;
}
   }

但是如果你想使用图书馆，请查看https://github.com/vinc3m1/RoundedImageView

Answer 3

将图像用作.png格式，然后只将图像背景透明，图像显示在圆形内。

Android eclipse中的圆形Imageview？

3 个答案: