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 com.example.android.apprestrictionenforcer;
18 
19 import android.content.Context;
20 import android.os.Bundle;
21 import android.support.annotation.Nullable;
22 import android.support.v4.app.DialogFragment;
23 import android.support.v4.app.Fragment;
24 import android.text.TextUtils;
25 import android.view.LayoutInflater;
26 import android.view.View;
27 import android.view.ViewGroup;
28 import android.widget.EditText;
29 import android.widget.Toast;
30 
31 /**
32  * Provides a dialog to create a new restriction item for the sample bundle array.
33  */
34 public class ItemAddFragment extends DialogFragment implements View.OnClickListener {
35 
36     public interface OnItemAddedListener {
onItemAdded(String key, String value)37         void onItemAdded(String key, String value);
38     }
39 
40     private OnItemAddedListener mListener;
41     private EditText mEditKey;
42     private EditText mEditValue;
43 
44     @Override
onAttach(Context context)45     public void onAttach(Context context) {
46         super.onAttach(context);
47         Fragment parentFragment = getParentFragment();
48         mListener = (OnItemAddedListener) (parentFragment == null ? context : parentFragment);
49     }
50 
51     @Override
onDetach()52     public void onDetach() {
53         mListener = null;
54         super.onDetach();
55     }
56 
57     @Nullable
58     @Override
onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)59     public View onCreateView(LayoutInflater inflater, ViewGroup container,
60                              Bundle savedInstanceState) {
61         getDialog().setTitle(R.string.add_item);
62         return inflater.inflate(R.layout.fragment_item_add, container, false);
63     }
64 
65     @Override
onViewCreated(View view, @Nullable Bundle savedInstanceState)66     public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
67         mEditKey = (EditText) view.findViewById(R.id.key);
68         mEditValue = (EditText) view.findViewById(R.id.value);
69         view.findViewById(R.id.ok).setOnClickListener(this);
70     }
71 
72     @Override
onClick(View v)73     public void onClick(View v) {
74         switch (v.getId()) {
75             case R.id.ok:
76                 if (addItem()) {
77                     dismiss();
78                 }
79                 break;
80         }
81     }
82 
addItem()83     private boolean addItem() {
84         String key = mEditKey.getText().toString();
85         if (TextUtils.isEmpty(key)) {
86             Toast.makeText(getActivity(), "Input the key.", Toast.LENGTH_SHORT).show();
87             return false;
88         }
89         String value = mEditValue.getText().toString();
90         if (TextUtils.isEmpty(value)) {
91             Toast.makeText(getActivity(), "Input the value.", Toast.LENGTH_SHORT).show();
92             return false;
93         }
94         if (mListener != null) {
95             mListener.onItemAdded(key, value);
96         }
97         return true;
98     }
99 
100 }
101