有人知道如何用Glide显示圆角图像吗? 我正在用Glide加载图像,但我不知道如何将圆角参数传递给这个库。
我需要显示图像像下面的例子:
有人知道如何用Glide显示圆角图像吗? 我正在用Glide加载图像,但我不知道如何将圆角参数传递给这个库。
我需要显示图像像下面的例子:
当前回答
滑翔V4:
Glide.with(context)
.load(url)
.circleCrop()
.into(imageView);
滑翔V3:
您可以使用RoundedBitmapDrawable圆形图像与Glide。不需要自定义ImageView。
Glide.with(context).load(url).asBitmap().centerCrop().into(new BitmapImageViewTarget(imageView) {
@Override
protected void setResource(Bitmap resource) {
RoundedBitmapDrawable circularBitmapDrawable =
RoundedBitmapDrawableFactory.create(context.getResources(), resource);
circularBitmapDrawable.setCircular(true);
imageView.setImageDrawable(circularBitmapDrawable);
}
});
其他回答
这里有一个更模块化和更清晰的方法来在Glide中循环裁剪你的位图:
通过扩展BitmapTransformation创建一个自定义转换,然后重写transform方法,如下所示:
为了Glide 4.x.x
public class CircularTransformation extends BitmapTransformation {
@Override
protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
RoundedBitmapDrawable circularBitmapDrawable =
RoundedBitmapDrawableFactory.create(null, toTransform);
circularBitmapDrawable.setCircular(true);
Bitmap bitmap = pool.get(outWidth, outHeight, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
circularBitmapDrawable.setBounds(0, 0, outWidth, outHeight);
circularBitmapDrawable.draw(canvas);
return bitmap;
}
@Override
public void updateDiskCacheKey(MessageDigest messageDigest) {}
}
为了Glide 3.x.x
public class CircularTransformation extends BitmapTransformation {
@Override
protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
RoundedBitmapDrawable circularBitmapDrawable =
RoundedBitmapDrawableFactory.create(null, toTransform);
circularBitmapDrawable.setCircular(true);
Bitmap bitmap = pool.get(outWidth, outHeight, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
circularBitmapDrawable.setBounds(0, 0, outWidth, outHeight);
circularBitmapDrawable.draw(canvas);
return bitmap;
}
@Override
public String getId() {
// Return some id that uniquely identifies your transformation.
return "CircularTransformation";
}
}
然后在Glide builder中设置你需要它的地方:
Glide.with(yourActivity)
.load(yourUrl)
.asBitmap()
.transform(new CircularTransformation())
.into(yourView);
希望这对你有所帮助。
我发现了一个简单的解决方案,为imageview添加边界,其中的颜色想要设置或添加渐变图像。
步骤:
取一帧布局并添加两张图像。您可以根据您的要求设置大小。对于imgPlaceHolder,您需要一个想要设置的白色图像或颜色。
<ImageView
android:id="@+id/imgPlaceHolder"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:src="@drawable/white_bg"/>
<ImageView
android:id="@+id/imgPic"
android:layout_width="190dp"
android:layout_height="190dp"
android:layout_gravity="center"
android:src="@drawable/image01"/>
</FrameLayout>
After placing this code on xml file , put below line in java file. Glide.with(this).load(R.drawable.image01).asBitmap().centerCrop().into(new BitmapImageViewTarget(imgPic) { @Override protected void setResource(Bitmap resource) { RoundedBitmapDrawable circularBitmapDrawable = RoundedBitmapDrawableFactory.create(getResources(), resource); circularBitmapDrawable.setCircular(true); imageView.setImageDrawable(circularBitmapDrawable); } }); Glide.with(this).load(R.drawable.white_bg).asBitmap().centerCrop().into(new BitmapImageViewTarget(imgPlaceHolder) { @Override protected void setResource(Bitmap resource) { RoundedBitmapDrawable circularBitmapDrawable = RoundedBitmapDrawableFactory.create(getResources(), resource); circularBitmapDrawable.setCircular(true); imgTemp2.setImageDrawable(circularBitmapDrawable); } });
这将使imageview的边界简单,没有任何额外的填充和边缘。
注意:白色图像是强制性的边界,否则它将不起作用。
快乐编码:)
使用这个转换,它会工作得很好。
public class CircleTransform extends BitmapTransformation {
public CircleTransform(Context context) {
super(context);
}
@Override
protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
return circleCrop(pool, toTransform);
}
private static Bitmap circleCrop(BitmapPool pool, Bitmap source) {
if (source == null) return null;
int borderColor = ColorUtils.setAlphaComponent(Color.WHITE, 0xFF);
int borderRadius = 3;
int size = Math.min(source.getWidth(), source.getHeight());
int x = (source.getWidth() - size) / 2;
int y = (source.getHeight() - size) / 2;
// TODO this could be acquired from the pool too
Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);
if (squared != source) {
source.recycle();
}
Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);
if (result == null) {
result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
}
Canvas canvas = new Canvas(result);
Paint paint = new Paint();
paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
paint.setAntiAlias(true);
float r = size / 2f;
canvas.drawCircle(r, r, r, paint);
// Prepare the background
Paint paintBg = new Paint();
paintBg.setColor(borderColor);
paintBg.setAntiAlias(true);
// Draw the background circle
canvas.drawCircle(r, r, r, paintBg);
// Draw the image smaller than the background so a little border will be seen
canvas.drawCircle(r, r, r - borderRadius, paint);
squared.recycle();
return result;
}
@Override
public String getId() {
return getClass().getName();
}}
最简单的方法(需要Glide 4.x.x)
Glide.with(context).load(uri).apply(RequestOptions.circleCropTransform()).into(imageView)
不要附加太多的函数,如placeholder(), transition()等,只要让它像这段代码一样简单,它就可以工作了。
Glide.with(mContext)
.load(datas.getUser_img())
.centerCrop()
.into(ivAvator);