Post date: Jan 07, 2013 8:26:6 AM
From Android's NativeActivity:
@Override
protected void onCreate(Bundle savedInstanceState) {
String libname = "main";
String funcname = "ANativeActivity_onCreate";
ActivityInfo ai;
mIMM = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
mInputMethodCallback = new InputMethodCallback(this);
getWindow().takeSurface(this);
getWindow().takeInputQueue(this);
getWindow().setFormat(PixelFormat.RGB_565);
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_UNSPECIFIED
| WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
mNativeContentView = new NativeContentView(this);
mNativeContentView.mActivity = this;
setContentView(mNativeContentView);
mNativeContentView.requestFocus();
mNativeContentView.getViewTreeObserver().addOnGlobalLayoutListener(this);
try {
ai = getPackageManager().getActivityInfo(
getIntent().getComponent(), PackageManager.GET_META_DATA);
if (ai.metaData != null) {
String ln = ai.metaData.getString(META_DATA_LIB_NAME);
if (ln != null) libname = ln;
ln = ai.metaData.getString(META_DATA_FUNC_NAME);
if (ln != null) funcname = ln;
}
} catch (PackageManager.NameNotFoundException e) {
throw new RuntimeException("Error getting activity info", e);
}
String path = null;
File libraryFile = new File(ai.applicationInfo.nativeLibraryDir,
System.mapLibraryName(libname));
if (libraryFile.exists()) {
path = libraryFile.getPath();
}
if (path == null) {
throw new IllegalArgumentException("Unable to find native library: " + libname);
}
byte[] nativeSavedState = savedInstanceState != null
? savedInstanceState.getByteArray(KEY_NATIVE_SAVED_STATE) : null;
mNativeHandle = loadNativeCode(path, funcname, Looper.myQueue(),
getFilesDir().toString(), getObbDir().toString(),
Environment.getExternalStorageAppFilesDirectory(ai.packageName).toString(),
Build.VERSION.SDK_INT, getAssets(), nativeSavedState);
if (mNativeHandle == 0) {
throw new IllegalArgumentException("Unable to load native library: " + path);
}
super.onCreate(savedInstanceState);
}
Thanks, Google. I wanted to dynamically download a library to use with NativeActivity. Of course, the nativeLibraryDir is read only, and the code effectively prevents me from putting the file anywhere else. I can't even bypass the code, as it overrides the onCreate call, which needs to be called when initializing an activity.
tl;dr: Android is stupid sometimes.