android.support.v4.widget.CircleImageView不起作用

Question

当我尝试使用:android.support.v4.widget.CircleImageView

        <android.support.v4.widget.CircleImageView
                android:id="@+id/picture"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:layout_gravity="center_vertical"
                android:src="@drawable/ic_bg" />

它让我的应用程序崩溃

如何支持新的Material Design Widget CircleImageView

是否有任何使用这个新小部件的例子

logcat的

  java.lang.RuntimeException: Unable to start activity ComponentInfo{com.vogella.android.recyclerview/com.vogella.android.recyclerview.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class android.support.v4.widget.CircleImageView
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2255)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2309)
        at android.app.ActivityThread.access$700(ActivityThread.java:157)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1289)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:176)
        at android.app.ActivityThread.main(ActivityThread.java:5317)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:511)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
        at dalvik.system.NativeStart.main(Native Method)
 Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class android.support.v4.widget.CircleImageView
        at

Answer 1

它CircleImageView是支持库的私有类,无法使用.但是如果没有它,很容易自己创造这种效果CircleImageView.您只需要<shape />在中间定义一个带有透明圆的drawable,类似于:

<shape
    android:innerRadius="0dp"
    android:shape="ring"
    android:thicknessRatio="1"
    android:useLevel="false" >

    <solid android:color="@android:color/transparent" />

    <stroke
        android:width="100dp"
        android:color="#FFFFFFFF" />
</shape>

之后,只需将想要显示的图像ImageView与<shape />上面的drawable 一起组合,LayerList如下所示:

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

如果要显示的图像是动态的,则可以以LayerList编程方式创建!

Answer 2

我找到了android.support.v4.widget.CircleImageView的替代品.

<de.hdodenhof.circleimageview.CircleImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/meal_image_order"
android:layout_width="96dp"
android:layout_height="96dp"
android:src="@drawable/menu1"
app:civ_border_width="2dp"
app:civ_border_color="@color/white"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true" />

图书馆链接:https://github.com/hdodenhof/CircleImageView

Answer 3

CircleImageView是一个私人类v4,所以基本上你不能使用它.它在内部用于渲染a中的进度循环SwipeRefreshLayout,但并不意味着自己夸大.

请参阅此处以供参考.

Answer 4

如果您想以原生样式执行此操作,请使用此代码段

            <android.support.v7.widget.CardView
                android:id="@+id/view2"
                android:layout_width="45dp"
                android:layout_height="45dp"
                android:background="#ffffff"
                android:shape="ring"
                app:cardCornerRadius="23dp">

                <ImageView
                    android:id="@+id/profile_img_post"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_alignParentTop="true"
                    android:layout_centerHorizontal="true"
                    android:scaleType="centerCrop"
                    android:src="@drawable/test_img"></ImageView>
            </android.support.v7.widget.CardView>

Answer 5

这就是对我有用的

xml布局：

  <de.hdodenhof.circleimageview.CircleImageView
            android:id="@+id/picid"
            android:layout_width="270dp"
            android:layout_height="270dp"
            android:src="@drawable/avatar_small"
            android:layout_marginTop="25dp"
            />

Java代码：

CircleImageView pic = (de.hdodenhof.circleimageview.CircleImageView)rootView.findViewById(R.id.picid);

Answer 6

简单添加:此处将最新的库版本更改2.0.0为2.2.0

dependencies {

 implementation 'de.hdodenhof:circleimageview:2.2.0'

}