ImportTrack.java

package de.blau.android.dialogs;

import java.io.FileNotFoundException;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AlertDialog.Builder;
import android.support.v7.app.AppCompatDialog;
import android.util.Log;
import de.blau.android.Main;
import de.blau.android.R;
import de.blau.android.util.Snack;
import de.blau.android.util.ThemeUtils;

/**
 * Display a dialog asking for a file name to save to
 *
 */
public class ImportTrack extends DialogFragment
{
	
	private static final String DEBUG_TAG = ImportTrack.class.getSimpleName();
	
	private static final String TAG = "fragment_import_track";
	
	private Uri uri;
		
	
   	/**
	 
	 */
	static public void showDialog(FragmentActivity activity, Uri uri) {
		dismissDialog(activity);

		FragmentManager fm = activity.getSupportFragmentManager();
	    ImportTrack importTrackFragment = newInstance(uri);
	    if (importTrackFragment != null) {
	    	importTrackFragment.show(fm, TAG);
	    } else {
	    	Log.e(DEBUG_TAG,"Unable to create save file dialog ");
	    }
	}
	
	private static void dismissDialog(FragmentActivity activity) {
		FragmentManager fm = activity.getSupportFragmentManager();
		FragmentTransaction ft = fm.beginTransaction();
	    Fragment fragment = fm.findFragmentByTag(TAG);
	    if (fragment != null) {
	        ft.remove(fragment);
	    }
	    ft.commit();
	}
		
    /**
     */
    static private ImportTrack newInstance(Uri uri) {
    	ImportTrack f = new ImportTrack();
    	Bundle args = new Bundle();
        args.putParcelable("uri", uri);
        f.setArguments(args);
        f.setShowsDialog(true);
        
        return f;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        Log.d(DEBUG_TAG, "onAttach");
        if (!(activity instanceof Main)) {
            throw new ClassCastException(activity.toString() + " can ownly be called from Main");
        }
    }
    
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setCancelable(true);
        uri = getArguments().getParcelable("uri");
    }
    
    @NonNull
	@SuppressLint("InflateParams")
    @Override
    public AppCompatDialog onCreateDialog(Bundle savedInstanceState)
    {
		Builder builder = new AlertDialog.Builder(getActivity());
		builder.setIcon(ThemeUtils.getResIdFromAttribute(getActivity(),R.attr.alert_dialog));
		builder.setTitle(R.string.existing_track_title);
		builder.setMessage(R.string.existing_track_message);
		
		builder.setPositiveButton(R.string.replace, 	new OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				Main main = (Main) getActivity();
				if (main != null) {
					main.getTracker().stopTracking(true);
					try {
						main.getTracker().importGPXFile(main, uri);
					} catch (FileNotFoundException e) {
						try {
							Snack.barError(main, main.getResources().getString(R.string.toast_file_not_found, uri.toString()));
						} catch (Exception ex) {
							// protect against translation errors
						}
					}
				}
			}
		});
		builder.setNeutralButton(R.string.keep, new OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				Main main = (Main) getActivity();
				if (main != null) {
					main.getTracker().stopTracking(false);
					try {
						main.getTracker().importGPXFile(main, uri);
					} catch (FileNotFoundException e) {
						try {
							Snack.barError(main, main.getResources().getString(R.string.toast_file_not_found, uri.toString()));
						} catch (Exception ex) {
							// protect against translation errors
						}
					}
				}
			}
		});
		builder.setNegativeButton(R.string.cancel, null);
		return builder.create();
    }
}