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