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Merge pull request #213 from misaochan/category-back-button

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Add warning when pressing 'back' on category screen
This commit is contained in:
Nicolas Raoul 2016-07-29 11:46:41 +09:00 • committed by GitHub
commit 7d896a5e23
1 changed files with 45 additions and 0 deletions
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45
app/src/main/java/fr/free/nrw/commons/category/CategorizationFragment.java
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@ -3,6 +3,7 @@ package fr.free.nrw.commons.category;
import android.app.Activity;
import android.content.ContentProviderClient;
import android.content.Context;
import android.content.DialogInterface;
import android.database.Cursor;
import android.os.AsyncTask;
import android.os.Bundle;
@ -10,10 +11,12 @@ import android.os.Parcel;
import android.os.Parcelable;
import android.os.RemoteException;
import android.support.v4.app.Fragment;
import android.support.v7.app.AlertDialog;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
@ -26,6 +29,7 @@ import android.widget.EditText;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.Date;
@ -447,6 +451,47 @@ public class CategorizationFragment extends Fragment {
client = getActivity().getContentResolver().acquireContentProviderClient(CategoryContentProvider.AUTHORITY);
}
@Override
public void onResume() {
super.onResume();
View rootView = getView();
if (rootView != null) {
rootView.setFocusableInTouchMode(true);
rootView.requestFocus();
rootView.setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
backButtonDialog();
return true;
}
return false;
}
});
}
}
private void backButtonDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage("Are you sure you want to go back? The image will not have any categories saved.")
.setTitle("Warning");
builder.setPositiveButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//No need to do anything, user remains on categorization screen
}
});
builder.setNegativeButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
getActivity().finish();
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
@Override
public void onDestroy() {
super.onDestroy();