Question

升级到最新的支持库' 28.0.0-alpha1 '后，我无法在BottomNavigationView中禁用切换模式，即BottomNavigationItemView.setShiftingMode()方法不再可用。

java.lang.NoSuchFieldException: No field mShiftingMode in class Landroid/support/design/internal/BottomNavigationMenuView; 
    W/System.err:     at java.lang.Class.getDeclaredField(Native Method)
    at com.avocure.avocurehealth.utils.ViewUtils.removeNavigationShiftMode(ViewUtils.java:44)
    at com.avocure.avocurehealth.ui.main.MainActivity.init(MainActivity.java:125)
    at com.avocure.avocurehealth.ui.main.MainActivity.onCreate(MainActivity.java:107)
    at android.app.Activity.performCreate(Activity.java:6679)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2618)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)
    at android.app.ActivityThread.-wrap12(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6119)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

我使用JLS 5.6.2方法禁用换档模式。

如果有人能阐明最新版本中是否有更改或者是错误或其他内容，将不胜感激。

Answer 1

找到答案。在支持库28.0.0-alpha1中，我们现在可以使用以下任意一种方法添加标签（删除移动模式）：

XML：

<android.support.design.widget.BottomNavigationView
        .
        .
        .
        app:labelVisibilityMode="labeled" />

代码：

mBottomNavigationView.setLabelVisibilityMode(LabelVisibilityMode.LABEL_VISIBILITY_LABELED);

或：

@SuppressLint("RestrictedApi")
public static void removeNavigationShiftMode(BottomNavigationView view) {
    BottomNavigationMenuView menuView = (BottomNavigationMenuView) view.getChildAt(0);
    menuView.setLabelVisibilityMode(LabelVisibilityMode.LABEL_VISIBILITY_LABELED);
    menuView.buildMenuView();
}

无法在BottomNavigationView中解析方法'setShiftingMode（Boolean）'

1 个答案: