Native functions throw UnsatisfiedLinkError in custom view, despite working in main activity
- by Mark Ingram
For some reason I can only call native functions from my main activity and not any custom views that I've created. Here is an example file (I followed a tutorial, but renamed the classes http://mindtherobot.com/blog/452/android-beginners-ndk-setup-step-by-step/)
See the usage of the native function "getNewString".
package com.example.native;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.os.Bundle;
import android.view.View;
public class NativeTestActivity extends Activity
{
static
{
System.loadLibrary("nativeTest");
}
private native String getNewString();
@Override public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
this.setContentView(new BitmapView(this));
String hello = getNewString(); // This line works fine
new AlertDialog.Builder(this).setMessage(hello).show();
}
}
class BitmapView extends View
{
static
{
System.loadLibrary("nativeTest");
}
private native String getNewString();
public BitmapView(Context context)
{
super(context);
String hello = getNewString(); // This line throws the UnsatisfiedLinkError
new AlertDialog.Builder(this.getContext()).setMessage(hello).show();
}
}
How can I call native functions in my custom views?
I've built the application as an Android 2.2 app. I'm running the application on my HTC Desire. I have the latest SDK (9) and latest NDK (r5).
