我有一个扩展 android.app.Fragment 的片段 . 在某些情况下,在onCreateView里面,当我尝试将Application转换为我的Application实现时,我有 java.lang.ClassCastException .
public class SketchFragment extends android.app.Fragment{
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View inflate = inflater.inflate(R.layout.layout, container, false);
ButterKnife.bind(this,inflate);
MyApplication application = (MyApplication) getActivity().getApplicationContext();
//Previously, I tried to
//MyApplication application = (MyApplication) getActivity().getApplication()
}
}
实际上我只有 Android 6 中有<5%的用户(我的Crashlytics日志说)中有此错误 . My Crashlytics log below :
致命异常:java.lang.ClassCastException:android.app.Application无法强制转换为com.example.app.ui.activity.main.MyFragment.onCreateView(MyFragment.java:95)中的com.example.app.MyApplication
在android.app.Fragment.performCreateView(Fragment.java:2281)
在android.app.FragmentManagerImpl.moveToState(FragmentManager.java:983)
在android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1163)
在android.app.BackStackRecord.run(BackStackRecord.java:793)
在android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1552)
在android.app.FragmentManagerImpl $ 1.run(FragmentManager.java:487)
在android.os.Handler.handleCallback(Handler.java:739)
在android.os.Handler.dispatchMessage(Handler.java:95)
在android.os.Looper.loop(Looper.java:158)
在android.app.ActivityThread.main(ActivityThread.java:7229)
在java.lang.reflect.Method.invoke(Method.java)
在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:1230)
在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
我的应用程序部分来自Manifest文件:
<application android:name =“ . MyApplication”android:allowBackup =“true”android:icon =“@ mipmap / ic_launcher”android:label =“...”android:largeHeap =“true”android:supportsRtl =“true “android:theme =”@ style / AppTheme“> </ application>
Thanks in advance!