使 imageView 圆形不起作用的 Android 代码

Question

我正在尝试使我的 ImageView 圆。我已经编写了以下代码以使其显示为圆形，但不知何故它仍然显示方形 ImageView。 [使用picasso获取图片]

Java代码:

ImageView iv = (ImageView) addLinkDialog.findViewById(R.id.group_icon_jsoup);
Picasso.with(getBaseContext()).load(GroupImageUrl).into(iv);
iv.setBackgroundResource(R.drawable.icon_img);

ImageView代码:

<ImageView
    android:id="@+id/group_icon_jsoup"
    android:layout_width="75dp"
    android:layout_height="75dp"
    android:layout_gravity="center"
    android:layout_margin="8dp"
    android:background="@drawable/icon_img" />

@drawable/icon_img.xml:

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item android:drawable="@drawable/circle"/>
</layer-list>

@drawable/circle.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:innerRadius="0dp"
    android:shape="ring"
    android:thicknessRatio="1.9"
    android:useLevel="false" >
<solid android:color="@android:color/transparent" />

<stroke
    android:width="10dp"
    android:color="@android:color/white" />
</shape>

Answer 1

为什么不使用第三方？

试试这段代码

Bitmap picture = BitmapFactory.decodeResource(getResources(), R.mipmap.add_image);

ImageView imageView = (ImageView) findViewById(R.id.imgProfilePicture);
imageView.setImageBitmap(getRoundedBitmap(picture));

 public Bitmap getRoundedBitmap(Bitmap bitmap){
        Bitmap circleBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
        BitmapShader shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
        Paint paint = new Paint();
        paint.setShader(shader);
        paint.setAntiAlias(true);
        Canvas c = new Canvas(circleBitmap);
        c.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);
        return circleBitmap;
    }

你的 xml 文件

  <de.hdodenhof.circleimageview.CircleImageView
        android:id="@+id/imgProfilePicture"
        android:layout_width="110dp"
        android:layout_height="110dp"
        android:layout_marginBottom="20dp"
        app:civ_border_width="3dp"
        app:civ_border_color="@color/light_gray" />

并将其添加到 build.gradle

 compile 'de.hdodenhof:circleimageview:2.1.0'

循环 ImageView 完成!