1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License
15  */
16 
17 package android.support.v17.preference;
18 
19 import android.app.Fragment;
20 import android.os.Build;
21 import android.os.Bundle;
22 import android.support.v7.preference.DialogPreference;
23 
24 public class LeanbackPreferenceDialogFragment extends Fragment {
25 
26     public static final String ARG_KEY = "key";
27 
28     private DialogPreference mPreference;
29 
LeanbackPreferenceDialogFragment()30     public LeanbackPreferenceDialogFragment() {
31         if (Build.VERSION.SDK_INT >= 21) {
32             LeanbackPreferenceFragmentTransitionHelperApi21.addTransitions(this);
33         }
34     }
35 
36     @Override
onCreate(Bundle savedInstanceState)37     public void onCreate(Bundle savedInstanceState) {
38         super.onCreate(savedInstanceState);
39 
40         final Fragment rawFragment = getTargetFragment();
41         if (!(rawFragment instanceof DialogPreference.TargetFragment)) {
42             throw new IllegalStateException("Target fragment must implement TargetFragment" +
43                     " interface");
44         }
45 
46         final DialogPreference.TargetFragment fragment =
47                 (DialogPreference.TargetFragment) rawFragment;
48 
49         final String key = getArguments().getString(LeanbackListPreferenceDialogFragment.ARG_KEY);
50         mPreference = (DialogPreference) fragment.findPreference(key);
51     }
52 
getPreference()53     public DialogPreference getPreference() {
54         return mPreference;
55     }
56 }
57