单击替换片段

Question

我想在单击 FloatingActionButton 时用新片段替换当前片段。我用 fragmentReplace 尝试过，但我的应用程序一直崩溃。

我是不是漏了什么？

代码：

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            android.app.Fragment someFrag = new NewEventActivity();
            replaceFragment(someFrag);

            //Snackbar.make(view, "Hallo du heimlich pupsende :P", Snackbar.LENGTH_LONG)
             //       .setAction("Action", null).show();
        }

    });

}


public void replaceFragment(android.app.Fragment someFrag){
    android.app.FragmentTransaction transaction = getFragmentManager().beginTransaction();
    transaction.replace(R.id.newEvent, someFrag);
    transaction.addToBackStack(null);
    transaction.commit();
}

片段：

public class NewEventActivity extends android.app.Fragment {

LayoutInflater inflater;


public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.new_event_fragment, container, false);


    return rootView;
   }
 }

Logcat

Process: com.example.danny.myapplication, PID: 3123 java.lang.IllegalArgumentException: No view found for id 0x7f0c0082 (com.example.danny.myapplication:id/newEvent) for fragment NewEventActivity{bd7d3d #2 id=0x7f0c0082} at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1059) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252) at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:742) at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617) at android.support.v4.app.FragmentManagerImpl.run(FragmentManager.java:517) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Answer 1

试试这个，

FragmentManager fm = getSupportFragmentManager();
fm.beginTransaction().replace(R.id.main_activity,
new YourNewFragment()).addToBackStack(YourPreviousFragment.class.getName())
.commit();

Answer 2

您的视图 R.id.newEvent 应该是您在 activity.

的 setContentView() 方法中定义的子布局

单击替换片段

Replace Fragment on click

android

android-fragments

floating-action-button