E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.myapplication, PID: 9762 java.lang.RuntimeException: com.example.myapplication.MainActivity2@48c4f8e must implement OnFragmentInteractionListener at com.example.myapplication.BlankFragment.onAttach(BlankFragment.java:85) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManager.java:1404) at androidx.fragment.app.FragmentTransition.addToFirstInLastOut(FragmentTransition.java:1195) at androidx.fragment.app.FragmentTransition.calculateFragments(FragmentTransition.java:1078) at androidx.fragment.app.FragmentTransition.startTransitions(FragmentTransition.java:117) at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2408) at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2366) at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2273) at androidx.fragment.app.FragmentManagerImpl$1.run(FragmentManager.java:733) at android.os.Handler.handleCallback(Handler.java:883) at android.os.Handler.dispatchMessage(Handler.java:100) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:7356) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930) Process 9762 terminated.这是代码运行抛出的错误,如何修改
时间: 2024-02-25 14:52:04 浏览: 137
这个错误信息提示在 MainActivity2 中没有实现 OnFragmentInteractionListener 接口,需要在 MainActivity2 中实现该接口,以解决这个问题。可以在 MainActivity2 中添加如下代码:
```java
public class MainActivity2 extends AppCompatActivity implements BlankFragment.OnFragmentInteractionListener {
//...
@Override
public void onFragmentInteraction(Uri uri) {
// 处理 Fragment 和 Activity 之间的交互
}
}
```
这样就能够实现 OnFragmentInteractionListener 接口,解决这个问题。
相关问题
E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.photodiary2, PID: 7737 java.lang.RuntimeException: Unable to resume activity {com.example.photodiary2/com.example.photodiary2.Diary}: java.lang.IllegalStateException: Cannot access database on the main thread since it may potentially lock the UI for a long period of time.
这是一个运行时异常,出现在安卓应用程序 com.example.photodiary2 的 Diary 活动中。异常信息显示,无法恢复活动,因为出现了 java.lang.IllegalStateException 异常,该异常的原因是当前代码在主线程中尝试访问数据库,这可能会导致界面被长时间锁定,从而导致应用程序无响应。为了避免这种情况,你应该在后台线程中执行数据库操作。可以使用 AsyncTask 或者 Kotlin 的协程等异步机制来实现。
E/CameraX: No default CameraXConfig.Provider specified in meta-data. The most likely cause is you did not include a default implementation in your build such as 'camera-camera2'. D/AndroidRuntime: Shutting down VM E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.mycamerax, PID: 7966 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mycamerax/com.example.mycamerax.MainActivity}: java.lang.IllegalStateException: CameraX is not configured properly. The most likely cause is you did not include a default implementation in your build such as 'camera-camera2'. at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3270)
这个错误提示是因为你没有在 AndroidManifest.xml 文件中的 meta-data 标签中指定 CameraXConfig.Provider,导致 CameraX 没有被正确配置。解决方法是在 AndroidManifest.xml 文件中的 meta-data 标签里指定 CameraXConfig.Provider,例如:
```xml
<meta-data
android:name="androidx.camera.camera2.extension.Camera2Extension"
android:resource="@xml/camera2_extension_config" />
```
其中,android:name 指定了 CameraXConfig.Provider 的实现类,android:resource 指定了该实现类的配置文件。你需要根据你的实际情况来配置它们。同时,确保你的 build.gradle 文件中已经添加了 CameraX 的依赖。
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