Can't resolve placeholderfragment placeholder error
I am really stuck with this error (below):
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_vehiclerecall);
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
I have bound the container to the XML layout correctly (below):
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/container"
tools:context="com.customerautomotivenetwork.VehicleRecall"/>
But I keep getting the error, cannot resolve method for PlacehlderFragment, any idea what I am doing wrong?
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- You are probably using the wrong version
Fragment
In your file, PlaceholderFragment.java
first make sure you expand Fragment
:
public class PlaceholderFragment extends Fragment { //...
Then check the import at the beginning of this file. There should be a line:
import android.app.Fragment;
and NOT the line:
import android.support.v4.app.Fragment;
Try not to mix "normal" and "v4" snippets, they have the same name and do the same thing, but they are actually different classes.
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I had to import android.support.v4.app.Fragment file to fix this issue.
In my case, I used minSdkVersion 8 and I created Activity java class> Package> Acitivity> BlankActivity. This generated activity class had a public static inner class that PlaceholderFragment extends the fragment. This inner class was used in onCreate () in
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_display_message);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction().add(R.id.container, new PlaceholderFragment()).commit();
}
}
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