Game Development Reference
In-Depth Information
(
libch02.so
). The second argument to
openFileOutput
(zero) tells Android to assign private permissions
to the file (that means it can be read by only the application itself).
Listing 2-1.
Main Activity for This Chapter's Example
package ch02.project;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import jni.Natives;
import android.app.Activity;
import android.os.Bundle;
public class MainActivity extends Activity {
private static final String LIB = "libch02.so";
private static final String LIB_PATH =
"/data/data/ch02.project/files/" + LIB;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
// Install lib
System.out.println("Installing LIB: " + LIB);
// Copy lib from assests folder to files folder:
// /data/data/PKG_NAME/files
writeToStream(getAssets().open(LIB), openFileOutput(LIB, 0));
// Load Lib
System.load(LIB_PATH);
// Run it
String[] argv = { "MyLib", "arg1", "arg2" };
Natives.LibMain(argv);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Write to a stream
*
