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问题:
I was trying to go to another page using button
, but it always fail.
Here is my First Class with its XML:
public class FindPeopleFragment extends Fragment {
public FindPeopleFragment(){}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
return rootView;
}
public void goToAttract(View v)
{
Intent intent = new Intent(getActivity().getApplication(), MainActivityList.class);
startActivity(intent);
}
}
Here is my XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerInParent="true"
android:layout_marginBottom="48dp"
android:onClick="goToAttract"
android:text="Button" /></RelativeLayout>
Here is my stacktrace..this is the result when i used onclicklistener
12-30 16:54:28.006: E/AndroidRuntime(992): FATAL EXCEPTION: main
12-30 16:54:28.006: E/AndroidRuntime(992): java.lang.RuntimeException: Unable to start activity ComponentInfo{info.androidhive.slidingmenu/info.androidhive.slidingmenu.MainActivityList}: android.view.InflateException: Binary XML file line #7: Error inflating class <unknown>
12-30 16:54:28.006: E/AndroidRuntime(992): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1955)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1980)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.app.ActivityThread.access$600(ActivityThread.java:122)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1146)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.os.Handler.dispatchMessage(Handler.java:99)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.os.Looper.loop(Looper.java:137)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.app.ActivityThread.main(ActivityThread.java:4340)
12-30 16:54:28.006: E/AndroidRuntime(992): at java.lang.reflect.Method.invokeNative(Native Method)
12-30 16:54:28.006: E/AndroidRuntime(992): at java.lang.reflect.Method.invoke(Method.java:511)
12-30 16:54:28.006: E/AndroidRuntime(992): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
12-30 16:54:28.006: E/AndroidRuntime(992): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
12-30 16:54:28.006: E/AndroidRuntime(992): at dalvik.system.NativeStart.main(Native Method)
12-30 16:54:28.006: E/AndroidRuntime(992): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class <unknown>
12-30 16:54:28.006: E/AndroidRuntime(992): at android.view.LayoutInflater.createView(LayoutInflater.java:606)
12-30 16:54:28.006: E/AndroidRuntime(992): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.view.LayoutInflater.onCreateView(LayoutInflater.java:653)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:678)
12-30 16:54:28.006: E/AndroidRuntime(992): at android.view.LayoutInflater.rInflate(LayoutInflater.java:
回答1:
use this
public void goToAttract(View v)
{
Intent intent = new Intent(getActivity(), MainActivityList.class);
startActivity(intent);
}
be sure you've registered MainActivityList
in you Manifest
回答2:
Try this code once-
public class FindPeopleFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home,
container, false);
Button button = (Button) rootView.findViewById(R.id.button1);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
updateDetail();
}
});
return rootView;
}
public void updateDetail() {
Intent intent = new Intent(getActivity(), MainActivityList.class);
startActivity(intent);
}
}
And as suggested by Raghunandan remove below code from your fragment_home.xml
-
android:onClick="goToAttract"
回答3:
Remove this
android:onClick="goToAttract"
Then
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
Button b = (Button)rootView.findViewById(R.id.button1);
b.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Intent intent = new Intent(getActivity(), MainActivityList.class);
startActivity(intent);
}
});
return rootView;
The error says you need to public void goToAttract(View v)
in Activity class
Could not find method goToAttract(View) in the activity class
Reason pls check the answer by PareshMayani @
Android app crashing (fragment and xml onclick)
Edit:
Caused by: java.lang.OutOfMemoryError
I guess you have a image that is too big to fit in and it needs to be scaled down. Hence the OutOfMemoryError
.
回答4:
in your receiving intent use as
Intent intent = getActivity().getIntent();
((TextView)view.findViewById(R.id.hello)).setText(intent.getStringExtra("Hello"));
and in your send intent
Intent intent = new Intent(getActivity(),Main2Activity.class);
intent.putExtra("Hello","Nisar");
getActivity().startActivity(intent);
remember both are in fragments
回答5:
For Kotlin you can use...
val myIntent = Intent(activity, your_destination_activity::class.java)
startActivity(myIntent)
回答6:
Hope this code will help
public class ThisFragment extends Fragment {
public Button button = null;
Intent intent;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.yourlayout, container, false);
intent = new Intent(getActivity(), GoToThisActivity.class);
button = (Button) rootView.findViewById(R.id.theButtonid);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
startActivity(intent);
}
});
return rootView;
}
You can use this code, make sure you change "ThisFragment" as your fragment name, "yourlayout" as the layout name, "GoToThisActivity" change it to which activity do you want and then "theButtonid" change it with your button id you used.
回答7:
If you can get a View
in that fragment, you can access the context from there:
view.getContext().startActivity(intent);
回答8:
You need to use getActivity() method from fragment for Intents.
Intent intent = new Intent(getActivity(), SecondActivity.class);
startActivity(intent);
回答9:
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.frame, new MySchedule()).commit();
MySchedule is the name of my java class.
回答10:
public class OneWayFragment extends Fragment {
ImageView img_search;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.one_way_fragment, container, false);
img_search = (ImageView) view.findViewById(R.id.search);
img_search.setOnClickListener(new View.OnClickListener() {
@Override`enter code here`
public void onClick(View v) {
Intent displayFlights = new Intent(getActivity(), SelectFlight.class);
startActivity(displayFlights);
}
});