1 /* 2 * Copyright (C) 2016 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.android.tv.dialog; 18 19 import android.app.Dialog; 20 import android.content.DialogInterface; 21 import android.os.Bundle; 22 import android.os.Handler; 23 import android.view.KeyEvent; 24 import android.view.LayoutInflater; 25 import android.view.View; 26 import android.view.ViewGroup; 27 import com.android.tv.R; 28 import java.util.concurrent.TimeUnit; 29 30 public class HalfSizedDialogFragment extends SafeDismissDialogFragment { 31 public static final String DIALOG_TAG = HalfSizedDialogFragment.class.getSimpleName(); 32 public static final String TRACKER_LABEL = "Half sized dialog"; 33 34 private static final long AUTO_DISMISS_TIME_THRESHOLD_MS = TimeUnit.SECONDS.toMillis(30); 35 36 private OnActionClickListener mOnActionClickListener; 37 38 private Handler mHandler = new Handler(); 39 private Runnable mAutoDismisser = 40 new Runnable() { 41 @Override 42 public void run() { 43 dismiss(); 44 } 45 }; 46 47 @Override onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)48 public View onCreateView( 49 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 50 return inflater.inflate(R.layout.halfsized_dialog, container, false); 51 } 52 53 @Override onStart()54 public void onStart() { 55 super.onStart(); 56 mHandler.postDelayed(mAutoDismisser, AUTO_DISMISS_TIME_THRESHOLD_MS); 57 } 58 59 @Override onPause()60 public void onPause() { 61 super.onPause(); 62 if (mOnActionClickListener != null) { 63 // Dismisses the dialog to prevent the callback being forgotten during 64 // fragment re-creating. 65 dismiss(); 66 } 67 } 68 69 @Override onStop()70 public void onStop() { 71 super.onStop(); 72 mHandler.removeCallbacks(mAutoDismisser); 73 } 74 75 @Override onCreateDialog(Bundle savedInstanceState)76 public Dialog onCreateDialog(Bundle savedInstanceState) { 77 Dialog dialog = super.onCreateDialog(savedInstanceState); 78 dialog.setOnKeyListener( 79 new DialogInterface.OnKeyListener() { 80 public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent keyEvent) { 81 mHandler.removeCallbacks(mAutoDismisser); 82 mHandler.postDelayed(mAutoDismisser, AUTO_DISMISS_TIME_THRESHOLD_MS); 83 return false; 84 } 85 }); 86 return dialog; 87 } 88 89 @Override getTheme()90 public int getTheme() { 91 return R.style.Theme_TV_dialog_HalfSizedDialog; 92 } 93 94 @Override getTrackerLabel()95 public String getTrackerLabel() { 96 return TRACKER_LABEL; 97 } 98 99 /** 100 * Sets {@link OnActionClickListener} for the dialog fragment. If listener is set, the dialog 101 * will be automatically closed when it's paused to prevent the fragment being re-created by the 102 * framework, which will result the listener being forgotten. 103 */ setOnActionClickListener(OnActionClickListener listener)104 public void setOnActionClickListener(OnActionClickListener listener) { 105 mOnActionClickListener = listener; 106 } 107 108 /** Returns {@link OnActionClickListener} for sub-classes or any inner fragments. */ getOnActionClickListener()109 protected OnActionClickListener getOnActionClickListener() { 110 return mOnActionClickListener; 111 } 112 113 /** 114 * An interface to provide callbacks for half-sized dialogs. Subclasses or inner fragments 115 * should invoke {@link OnActionClickListener#onActionClick(long)} and provide the identifier of 116 * the action user clicked. 117 */ 118 public interface OnActionClickListener { onActionClick(long actionId)119 void onActionClick(long actionId); 120 } 121 } 122