Reputation: 89
I'm fairly new to Android programming and I just want to know how could I redirect a Fragment to a new one. Here is my code:
package com.example.samsung.drawer;
import android.support.v4.app.Fragment;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class First_frag_o extends Fragment {
final String[] items = new String[]{"Natural Hazards", "Biological Hazards", "Chemical Hazards"
};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.first0, container, false);
ListView list = (ListView) view.findViewById(R.id.first123);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, items);
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Fragment myFragment = null;
switch (arg2){
case 0:
myFragment = new NaturalHazards();
break;
case 1:
myFragment = new BiologicalHazards();
break;
case 2:
myFragment = new ChemicalHazards();
break;
}
// update the main content by replacing fragments
FragmentManager fragmentManager = getActivity().getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container1, myFragment)
.commit();
}
});
return view;
}
}
first0.xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:id="@+id/drawer_layout"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context=".MainActivity">
<FrameLayout android:id="@+id/container1" android:layout_width="match_parent"
android:layout_height="match_parent" android:background="#ff7f7f">
<ListView
android:id="@+id/first123"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android"
android:choiceMode="singleChoice"
android:descendantFocusability="blocksDescendants" >
</ListView>
</FrameLayout>
</android.support.v4.widget.DrawerLayout>
BiologicalHazards.Java:
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class BiologicalHazards extends Fragment {
View myView;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
myView = inflater.inflate(R.layout.haz,container,false);
return myView;
}
}
For example, I want to go to the "Biological Hazards" fragment when I click on the list. How do I do it? Could anyone please show me how?
Logcat:
08-30 19:46:57.633 31775-31775/com.example.samsung.drawer E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.samsung.drawer, PID: 31775
java.lang.IllegalArgumentException: No view found for id 0x7f0d006e (com.example.samsung.drawer:id/haztext) for fragment BiologicalHazards{21ddec38 #2 id=0x7f0d006e}
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1138)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:740)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1501)
at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:458)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:149)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
at dalvik.system.NativeStart.main(Native Method)
Upvotes: 1
Views: 4252
Reputation: 75788
At first create FrameLayout
in your xml
<FrameLayout
android:id="@+id/child_fragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
Then add this in your Listview Click events
Your_Listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
/*
* Added Nested Fragment
* */
// Create new fragment and transaction
Fragment newFragment = new ChildFragment();
// consider using Java coding conventions (upper first char class names!!!)
FragmentTransaction transaction = getFragmentManager().beginTransaction();
// Replace whatever is in the fragment_container view with this fragment,
// and add the transaction to the back stack
transaction.replace(R.id.child_fragment, newFragment);
transaction.addToBackStack(null);
// Commit the transaction
transaction.commit();
}
});
Upvotes: 3
Reputation: 89
I've figured it out, I've made a mistake in one of my XML. I've been referring the listview
instead of the framelayout
. Sorry about that, I'm really new to Android/Java programming. It's working now. Code above is edited to the new, working one.
Upvotes: 0