Alexander Lucas | 3b4da72 | 2013-11-21 12:45:31 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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.basicgesturedetect; |
| 18 | |
| 19 | import android.content.Intent; |
| 20 | import android.os.Bundle; |
| 21 | import android.support.v4.app.Fragment; |
| 22 | import android.view.GestureDetector; |
| 23 | import android.view.MenuItem; |
| 24 | import android.view.MotionEvent; |
| 25 | import android.view.View; |
| 26 | |
| 27 | import com.example.android.common.logger.Log; |
| 28 | import com.example.android.common.logger.LogFragment; |
| 29 | |
| 30 | public class BasicGestureDetectFragment extends Fragment{ |
| 31 | @Override |
| 32 | public void onCreate(Bundle savedInstanceState) { |
| 33 | super.onCreate(savedInstanceState); |
| 34 | setHasOptionsMenu(true); |
| 35 | } |
| 36 | |
| 37 | @Override |
| 38 | public void onActivityCreated(Bundle savedInstanceState) { |
| 39 | super.onActivityCreated(savedInstanceState); |
| 40 | View gestureView = getActivity().findViewById(R.id.sample_output); |
| 41 | gestureView.setClickable(true); |
| 42 | gestureView.setFocusable(true); |
| 43 | |
| 44 | // BEGIN_INCLUDE(init_detector) |
| 45 | |
| 46 | // First create the GestureListener that will include all our callbacks. |
| 47 | // Then create the GestureDetector, which takes that listener as an argument. |
| 48 | GestureDetector.SimpleOnGestureListener gestureListener = new GestureListener(); |
| 49 | final GestureDetector gd = new GestureDetector(getActivity(), gestureListener); |
| 50 | |
| 51 | /* For the view where gestures will occur, create an onTouchListener that sends |
| 52 | * all motion events to the gesture detector. When the gesture detector |
| 53 | * actually detects an event, it will use the callbacks you created in the |
| 54 | * SimpleOnGestureListener to alert your application. |
| 55 | */ |
| 56 | |
| 57 | gestureView.setOnTouchListener(new View.OnTouchListener() { |
| 58 | @Override |
| 59 | public boolean onTouch(View view, MotionEvent motionEvent) { |
| 60 | gd.onTouchEvent(motionEvent); |
| 61 | return false; |
| 62 | } |
| 63 | }); |
| 64 | // END_INCLUDE(init_detector) |
| 65 | } |
| 66 | |
| 67 | |
| 68 | @Override |
| 69 | public boolean onOptionsItemSelected(MenuItem item) { |
| 70 | if (item.getItemId() == R.id.sample_action) { |
| 71 | clearLog(); |
| 72 | } |
| 73 | return true; |
| 74 | } |
| 75 | |
| 76 | public void clearLog() { |
| 77 | LogFragment logFragment = ((LogFragment) getActivity().getSupportFragmentManager() |
| 78 | .findFragmentById(R.id.log_fragment)); |
| 79 | logFragment.getLogView().setText(""); |
| 80 | } |
| 81 | } |