小编Vas*_*sim的帖子

我们如何通过按后退按钮停止从当前片段重新加载前一个片段

前任。好像我们正在从 List-fragment 移动到 Details Fragment 后按下不需要通过使用 Android Jet Pack 和导航架构再次重新加载 List-fragment

<fragment
        android:id="@+id/my_nav_host_fragment"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:defaultNavHost="true"
        app:navGraph="@navigation/navigation_graph" />

我使用此代码启用启用自动填充服务。

Intent dialogIntent = new Intent(Settings.ACTION_REQUEST_SET_AUTOFILL_SERVICE);
        startActivity(dialogIntent);

我得到了下一个例外：

FATAL EXCEPTION: main

Process: com.example.android.autofillframework, PID: 7683
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.autofillframework/com.example.android.autofillframework.app.StandardSignInActivity}: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.settings.REQUEST_SET_AUTOFILL_SERVICE }
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
Caused by: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.settings.REQUEST_SET_AUTOFILL_SERVICE }
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1936)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1615)
at android.app.Activity.startActivityForResult(Activity.java:4472)
at android.support.v4.app.BaseFragmentActivityApi16.startActivityForResult(BaseFragmentActivityApi16.java:54)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:65)
at android.app.Activity.startActivityForResult(Activity.java:4430)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:711)
at …