com.lambdasoup.quickfit.ui.DialogActivity.java Source code

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Here is the source code for com.lambdasoup.quickfit.ui.DialogActivity.java

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/*
 * Copyright 2016 Juliane Lehmann <jl@lambdasoup.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package com.lambdasoup.quickfit.ui;

import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;

/**
 * Base class for activities displaying dialog fragments.
 */
public abstract class DialogActivity extends AppCompatActivity {
    private static final String TAG_DIALOG = "dialog";

    protected void showDialog(DialogFragment dialogFragment) {
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        Fragment prev = getSupportFragmentManager().findFragmentByTag(TAG_DIALOG);
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);

        dialogFragment.show(ft, TAG_DIALOG);
    }
}