/**
* This method is called by SDL using JNI.
*
* @return result of getSystemService(name) but executed on UI thread.
*/
public Object getSystemServiceFromUiThread(final String name) {
final Object lock = new Object();
final Object[] results = new Object[2]; // array for writable variables
synchronized (lock) {
runOnUiThread(
new Runnable() {
@Override
public void run() {
synchronized (lock) {
results[0] = getSystemService(name);
results[1] = Boolean.TRUE;
lock.notify();
}
}
});
if (results[1] == null) {
try {
lock.wait();
} catch (InterruptedException ex) {
ex.printStackTrace();
}
}
}
return results[0];
}
/**
* This method is called by SDL using JNI. Shows the messagebox from UI thread and block calling
* thread. buttonFlags, buttonIds and buttonTexts must have same length.
*
* @param buttonFlags array containing flags for every button.
* @param buttonIds array containing id for every button.
* @param buttonTexts array containing text for every button.
* @param colors null for default or array of length 5 containing colors.
* @return button id or -1.
*/
public int messageboxShowMessageBox(
final int flags,
final String title,
final String message,
final int[] buttonFlags,
final int[] buttonIds,
final String[] buttonTexts,
final int[] colors) {
messageboxSelection[0] = -1;
// sanity checks
if ((buttonFlags.length != buttonIds.length) && (buttonIds.length != buttonTexts.length)) {
return -1; // implementation broken
}
// collect arguments for Dialog
final Bundle args = new Bundle();
args.putInt("flags", flags);
args.putString("title", title);
args.putString("message", message);
args.putIntArray("buttonFlags", buttonFlags);
args.putIntArray("buttonIds", buttonIds);
args.putStringArray("buttonTexts", buttonTexts);
args.putIntArray("colors", colors);
// trigger Dialog creation on UI thread
runOnUiThread(
new Runnable() {
@Override
public void run() {
showDialog(dialogs++, args);
}
});
// block the calling thread
synchronized (messageboxSelection) {
try {
messageboxSelection.wait();
} catch (InterruptedException ex) {
ex.printStackTrace();
return -1;
}
}
// return selected value
return messageboxSelection[0];
}