package org.opencv.android;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.util.Log;
/**
* Basic implementation of LoaderCallbackInterface.
*/
public abstract class BaseLoaderCallback implements LoaderCallbackInterface {
public BaseLoaderCallback(Context AppContext) {
mAppContext = AppContext;
}
public void onManagerConnected(int status)
{
switch (status)
{
/** OpenCV initialization was successful. **/
case LoaderCallbackInterface.SUCCESS:
{
/** Application must override this method to handle successful library initialization. **/
} break;
/** OpenCV loader can not start Google Play Market. **/
case LoaderCallbackInterface.MARKET_ERROR:
{
Log.e(TAG, "Package installation failed!");
AlertDialog MarketErrorMessage = new AlertDialog.Builder(mAppContext).create();
MarketErrorMessage.setTitle("OpenCV Manager");
MarketErrorMessage.setMessage("Package installation failed!");
MarketErrorMessage.setCancelable(false); // This blocks the 'BACK' button
MarketErrorMessage.setButton(AlertDialog.BUTTON_POSITIVE, "OK", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
MarketErrorMessage.show();
} break;
/** Package installation has been canceled. **/
case LoaderCallbackInterface.INSTALL_CANCELED:
{
Log.d(TAG, "OpenCV library instalation was canceled by user");
finish();
} break;
/** Application is incompatible with this version of OpenCV Manager. Possibly, a service update is required. **/
case LoaderCallbackInterface.INCOMPATIBLE_MANAGER_VERSION:
{
Log.d(TAG, "OpenCV Manager Service is uncompatible with this app!");
AlertDialog IncomatibilityMessage = new AlertDialog.Builder(mAppContext).create();
IncomatibilityMessage.setTitle("OpenCV Manager");
IncomatibilityMessage.setMessage("OpenCV Manager service is incompatible with this app. Try to update it via Google Play.");
IncomatibilityMessage.setCancelable(false); // This blocks the 'BACK' button
IncomatibilityMessage.setButton(AlertDialog.BUTTON_POSITIVE, "OK", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
IncomatibilityMessage.show();
} break;
/** Other status, i.e. INIT_FAILED. **/
default:
{
Log.e(TAG, "OpenCV loading failed!");
AlertDialog InitFailedDialog = new AlertDialog.Builder(mAppContext).create();
InitFailedDialog.setTitle("OpenCV error");
InitFailedDialog.setMessage("OpenCV was not initialised correctly. Application will be shut down");
InitFailedDialog.setCancelable(false); // This blocks the 'BACK' button
InitFailedDialog.setButton(AlertDialog.BUTTON_POSITIVE, "OK", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
InitFailedDialog.show();
} break;
}
}
public void onPackageInstall(final int operation, final InstallCallbackInterface callback)
{
switch (operation)
{
case InstallCallbackInterface.NEW_INSTALLATION:
{
AlertDialog InstallMessage = new AlertDialog.Builder(mAppContext).create();
InstallMessage.setTitle("Package not found");
InstallMessage.setMessage(callback.getPackageName() + " package was not found! Try to install it?");
InstallMessage.setCancelable(false); // This blocks the 'BACK' button
InstallMessage.setButton(AlertDialog.BUTTON_POSITIVE, "Yes", new OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
callback.install();
}
});
InstallMessage.setButton(AlertDialog.BUTTON_NEGATIVE, "No", new OnClickListener() {
public void onClick(DialogInterface dialog, int which)
{
callback.cancel();
}
});
InstallMessage.show();
} break;
case InstallCallbackInterface.INSTALLATION_PROGRESS:
{
AlertDialog WaitMessage = new AlertDialog.Builder(mAppContext).create();
WaitMessage.setTitle("OpenCV is not ready");
WaitMessage.setMessage("Installation is in progress. Wait or exit?");
WaitMessage.setCancelable(false); // This blocks the 'BACK' button
WaitMessage.setButton(AlertDialog.BUTTON_POSITIVE, "Wait", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
callback.wait_install();
}
});
WaitMessage.setButton(AlertDialog.BUTTON_NEGATIVE, "Exit", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
callback.cancel();
}
});
WaitMessage.show();
} break;
}
}
void finish()
{
((Activity) mAppContext).finish();
}
protected Context mAppContext;
private final static String TAG = "OpenCVLoader/BaseLoaderCallback";
}