我有以下代码:
public class Fragment1 extends Fragment implements View.OnClickListener {
Button button;
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
if(container == null )
return null;
View view = (LinearLayout)inflater.inflate(R.layout.fragment1_layout, container, false);
button = (Button) view.findViewById(R.id.button);
button.setOnClickListener(this);
return view;
}
@Override
public void onClick(View v) {
if(v.getId() == R.id.button) {
startActivity(new Intent(getActivity().getApplicationContext(), Fragment3.class));
}
}
}
我开始使用Android,我甚至在manifestxt.xml中声明了一个活动:
活动android:name =“pachage ... destiny_fragment”
连续表现
E/AndroidRuntime﹕ FATAL EXCEPTION: main
android.content.ActivityNotFoundException: Unable to find explicit activity class {eguias.delogic.com.br.eguiasmobile/eguias.delogic.com.br.eguiasmobile.Fragment3}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1541)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1416)
at android.app.Activity.startActivityForResult(Activity.java:3351)
at android.app.Activity.startActivityForResult(Activity.java:3312)
at android.support.v4.app.FragmentActivity.startActivityFromFragment(FragmentActivity.java:826)
at android.support.v4.app.Fragment.startActivity(Fragment.java:896)
at eguias.delogic.com.br.eguiasmobile.Fragment1.onClick(Fragment1.java:37)
at android.view.View.performClick(View.java:4084)
at android.view.View$PerformClick.run(View.java:16966)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
应用程序正常运行,但错误“android.content.ActivityNotFoundException”始终显示在logcat中 .
谢谢 .
2 回答
主要
你的
Fragment3.class
应该扩展Activity
,这应该在AndroidManifest.xml
中声明 .