Question

我想用5px环绕图像的角落，用Picasso在imageview上显示。我创建了一个简单的类ImageRoundCorners，其中我使用简单的方法来舍入图像角，但是我的代码不起作用，角不是圆角。下面是我的代码：

   file = new File(APP.DIR_APP + APP.IMAGE + "/ok.jpg");
   if (file.isFile() && file.exists()) {
       Uri uri = Uri.fromFile(file);
       Picasso.with(this).load(uri).transform(new ImageRoundCorners()).into(fiv_image_view);
   }

和ImageRoundCorners类：

import com.squareup.picasso.Transformation;

public class ImageRoundCorners implements Transformation {
    @Override
    public Bitmap transform(Bitmap source) {
        Bitmap output = Bitmap.createBitmap(source.getWidth(), source
                .getHeight(), Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final int   color   = 0xff424242;
        final Paint paint   = new Paint();
        final Rect  rect    = new Rect(0, 0, source.getWidth(), source.getHeight());
        final RectF rectF   = new RectF(rect);
        final float roundPx = 50;

        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);

        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
        canvas.drawBitmap(source, rect, rect, paint);

        return output;
    }

    @Override
    public String key() {
        return "RoundImage";
    }
}

此代码中的问题是什么，我该如何解决？

我收到此错误：

java.lang.IllegalStateException: Transformation RoundImage mutated input Bitmap but failed to recycle the original.

Answer 1

错误信息非常清楚。你只是忘了回收原始的Bitmap。

....
canvas.drawBitmap(source, rect, rect, paint);
source.recycle();
return output;

您的代码中只丢失了一行！（我对所有这些答案感到惊讶，这些答案告诉你要做各种不相关的，连根拔起的解决方案。）

Answer 2

您可以将此图片视图用于圆角

https://github.com/siyamed/android-shape-imageview

<com.github.siyamed.shapeimageview.RoundedImageView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:src="@drawable/neo"
    app:siRadius="6dp"
    app:siBorderWidth="6dp"
    app:siBorderColor="@color/darkgray"
    app:siSquare="true"/>

结果

Answer 3

Build.Gradle中的

第1步 compile 'de.hdodenhof:circleimageview:1.2.1'（模块：应用）

步骤2在XML文件中

<de.hdodenhof.circleimageview.CircleImageView
            android:id="@+id/imageView"
            android:layout_width="80dp"
            android:layout_height="80dp"
            android:layout_centerVertical="true"
            android:src="@drawable/chetankambale" />

活动

中的第3步

// get image from drawble with rounded corner converted image
     Bitmap bitmap = BitmapFactory.decodeResource(this.getResources(), R.drawable.yogeshborhade);
            Bitmap circularBitmap = ImageConverter.getRoundedCornerBitmap(bitmap, 100);

// set rounded corner image to imageview
     ImageView circularImageView = (ImageView) layout.findViewById(R.id.imageView);
            circularImageView.setImageBitmap(circularBitmap);

Answer 4

您可以使用毕加索的RoundedCornerTansformation，例如::

final int radius = 5;
final int margin = 5;
final Transformation transformation = new RoundedCornersTransformation(radius,margin);
Picasso.with(activity).load(uri).transform(transformation).into(fiv_image_view);

Answer 5

您可以使用以下库。 https://github.com/lopspower/CircularImageView

<com.mikhaellopez.circularimageview.CircularImageView
    android:layout_width="250dp"
    android:layout_height="250dp"
    android:src="@drawable/image"
    app:civ_border_color="#EEEEEE"
    app:civ_border_width="4dp"
    app:civ_shadow="true"
    app:civ_shadow_radius="10"
    app:civ_shadow_color="#8BC34A"/>

Answer 6

Picasso.with(MainActivity.this)
    .load(url)
    .transform(new PRoundedCornersTransformation(30, 0, PRoundedCornerTransformation.CornerType.ALL))
    .into(imageView);

Android与毕加索的圆形图像

6 个答案: