android - 在 android 中使用 getfragmentmanager() 时出现 "No such method error"

Question

在我的应用程序中，我使用对话框 fragment 作为启动画面。因此它会在应用程序启动时显示启动画面。当我在低于 android 版本 3 的设备上运行该应用程序时，它显示类似“No such method error:getFragmentManager”的错误。我已经看到它可以通过使用 getSupportFragmentManager()。但是当我使用它时，启动对话框没有显示。请有人帮助我..提前致谢...

主要 Activity =>

        ft = getFragmentManager().beginTransaction(); //Here I am using getFragmentManager
    newFragment = SplashDialogFragment.newInstance();
    newFragment.show(MainActivity.ft, "dialog");

这是我的启动画面 fragment =>

public class SplashDialogFragment extends DialogFragment {

    private EditText mEditText;


    static SplashDialogFragment newInstance() {
        SplashDialogFragment f = new SplashDialogFragment();
        return f;
    }
    public void EditNameDialog() {
        // Empty constructor required for DialogFragment
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);    
        setStyle(DialogFragment.STYLE_NO_TITLE, android.R.style.Theme);        
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.splash_fragment, container);


        return view;
    }

    public void show(FragmentManager supportFragmentManager, String string) {
        // TODO Auto-generated method stub


    }


}

和错误日志=>

 > 12-07 11:09:09.330: E/AndroidRuntime(628): FATAL EXCEPTION: main
    12-07 11:09:09.330: E/AndroidRuntime(628): java.lang.NoSuchMethodError: com.myapp.mlm.MainActivity.getFragmentManager
    12-07 11:09:09.330: E/AndroidRuntime(628):  at com.madhyamam.malayalam2.MainActivity.onCreate(MainActivity.java:103)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at android.os.Handler.dispatchMessage(Handler.java:99)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at android.os.Looper.loop(Looper.java:123)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at android.app.ActivityThread.main(ActivityThread.java:3683)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at java.lang.reflect.Method.invokeNative(Native Method)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at java.lang.reflect.Method.invoke(Method.java:507)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
    12-07 11:09:09.330: E/AndroidRuntime(628):  at dalvik.system.NativeStart.main(Native Method)

Answer 1

我通过将 MainActivity 扩展到 FragmentActivity 解决了这个问题。以前它是扩展 Activity。之后我使用 getSupportFragmentManager 没有任何问题。