: android.support.v4.app.SuperNotCalledException

本文详细解析了Android应用中Fragment启动时出现SuperNotCalledException异常的原因及解决方案,强调了super.onStart()调用的重要性。

09-20 18:44:40.842: E/AndroidRuntime(28757): FATAL EXCEPTION: main

09-20 18:44:40.842: E/AndroidRuntime(28757): android.support.v4.app.SuperNotCalledException: Fragment ChartFrameActivity{42d15ec0 #0 id=0x7f080000 android:switcher:2131230720:0} did not call through to super.onStart()

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.app.Fragment.performStart(Fragment.java:1526)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:957)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1467)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:472)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.view.ViewPager.populate(ViewPager.java:1068)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.view.ViewPager.populate(ViewPager.java:914)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1436)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.View.measure(View.java:15473)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.widget.LinearLayout.measureVertical(LinearLayout.java:833)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.widget.LinearLayout.onMeasure(LinearLayout.java:574)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.View.measure(View.java:15473)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5056)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.View.measure(View.java:15473)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5056)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1396)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.widget.LinearLayout.measureVertical(LinearLayout.java:681)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.widget.LinearLayout.onMeasure(LinearLayout.java:574)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.View.measure(View.java:15473)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5056)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)

09-20 18:44:40.842: E/AndroidRuntime(28757): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2361)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.View.measure(View.java:15473)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1974)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1217)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1390)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1112)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4472)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.Choreographer.doCallbacks(Choreographer.java:555)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.Choreographer.doFrame(Choreographer.java:525)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.os.Handler.handleCallback(Handler.java:615)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.os.Handler.dispatchMessage(Handler.java:92)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.os.Looper.loop(Looper.java:137)

09-20 18:44:40.842: E/AndroidRuntime(28757): at android.app.ActivityThread.main(ActivityThread.java:4898)

09-20 18:44:40.842: E/AndroidRuntime(28757): at java.lang.reflect.Method.invokeNative(Native Method)

09-20 18:44:40.842: E/AndroidRuntime(28757): at java.lang.reflect.Method.invoke(Method.java:511)

09-20 18:44:40.842: E/AndroidRuntime(28757): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)

09-20 18:44:40.842: E/AndroidRuntime(28757): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)

09-20 18:44:40.842: E/AndroidRuntime(28757): at dalvik.system.NativeStart.main(Native Method)

 

 

解决办法

          你重写的方法@Override

public void onStart() {

Log.i(TAG, "onStart");

//super.onStart();//不能注释掉

}

 

这个问题可能是由于你的项目中使用了过时的 Android Support Library 而导致的。在最新版本的 Android Gradle 插件中,Google 已经将 Android Support Library 替换为 AndroidX。因此,你需要将你的项目迁移到 AndroidX。 要迁移到 AndroidX,你可以使用 Android Studio 中的 Refactor 工具。具体步骤如下: 1. 打开你的项目,在菜单栏中选择 Refactor -> Migrate to AndroidX。 2. 在弹出的对话框中,选择要迁移的项目和模块,然后点击 Refactor。 3. Android Studio 将会自动为你的项目更改所有依赖项和类引用,以使它们指向新的 AndroidX 库。 4. 如果 Refactor 过程中出现任何问题,你可以手动更改你的 build.gradle 文件,以使用 AndroidX 库。在 build.gradle 文件中添加以下代码: ``` android { ... defaultConfig { ... // 增加以下两行 testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" android.useAndroidX=true } // 增加以下两行 configurations.all { resolutionStrategy { force 'com.android.support:support-v4:28.0.0' // 使用 28.0.0 版本的 support-v4 库 } } } // 移除以下两行 // implementation 'com.android.support:support-v4:28.0.0' // implementation 'com.android.support:appcompat-v7:28.0.0' // 增加以下两行 implementation 'androidx.appcompat:appcompat:1.2.0' implementation 'androidx.legacy:legacy-support-v4:1.0.0' ``` 5. 最后,点击菜单栏中的 Build -> Clean Project,等待清除完成后再点击 Build -> Rebuild Project,重新构建你的项目。 如果你还遇到其他问题,请参考 Google 的官方文档:[Migrating to AndroidX](https://developer.android.com/jetpack/androidx/migrate)。
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