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BasicGestureDetect / src / com.example.android.basicgesturedetect /

BasicGestureDetectFragment.java

       
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        /*
       
       
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        * Copyright (C) 2013 The Android Open Source Project
       
       
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        *
       
       
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        * Licensed under the Apache License, Version 2.0 (the "License");
       
       
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        * you may not use this file except in compliance with the License.
       
       
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        * You may obtain a copy of the License at
       
       
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        *
       
       
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        *      http://www.apache.org/licenses/LICENSE-2.0
       
       
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        *
       
       
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        * Unless required by applicable law or agreed to in writing, software
       
       
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        * distributed under the License is distributed on an "AS IS" BASIS,
       
       
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        * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       
       
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        * See the License for the specific language governing permissions and
       
       
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        * limitations under the License.
       
       
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        */
       
       
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        package com.example.android.basicgesturedetect;
       
       
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        import android.content.Intent;
       
       
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        import android.os.Bundle;
       
       
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        import android.support.v4.app.Fragment;
       
       
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        import android.view.GestureDetector;
       
       
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        import android.view.MenuItem;
       
       
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        import android.view.MotionEvent;
       
       
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        import android.view.View;
       
       
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        import com.example.android.common.logger.Log;
       
       
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        import com.example.android.common.logger.LogFragment;
       
       
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        public class BasicGestureDetectFragment extends Fragment{
       
       
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        @Override
       
       
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        public void onCreate(Bundle savedInstanceState) {
       
       
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        super.onCreate(savedInstanceState);
       
       
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        setHasOptionsMenu(true);
       
       
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        }
       
       
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        @Override
       
       
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        public void onActivityCreated(Bundle savedInstanceState) {
       
       
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        super.onActivityCreated(savedInstanceState);
       
       
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        View gestureView = getActivity().findViewById(R.id.sample_output);
       
       
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        gestureView.setClickable(true);
       
       
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        gestureView.setFocusable(true);
       
       
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        // First create the GestureListener that will include all our callbacks.
       
       
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        // Then create the GestureDetector, which takes that listener as an argument.
       
       
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        GestureDetector.SimpleOnGestureListener gestureListener = new GestureListener();
       
       
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        final GestureDetector gd = new GestureDetector(getActivity(), gestureListener);
       
       
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        /* For the view where gestures will occur, create an onTouchListener that sends
       
       
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        * all motion events to the gesture detector.  When the gesture detector
       
       
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        * actually detects an event, it will use the callbacks you created in the
       
       
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        * SimpleOnGestureListener to alert your application.
       
       
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        */
       
       
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        gestureView.setOnTouchListener(new View.OnTouchListener() {
       
       
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        @Override
       
       
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        public boolean onTouch(View view, MotionEvent motionEvent) {
       
       
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        gd.onTouchEvent(motionEvent);
       
       
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        return false;
       
       
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        }
       
       
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        });
       
       
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        }
       
       
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        @Override
       
       
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        public boolean onOptionsItemSelected(MenuItem item) {
       
       
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        if (item.getItemId() == R.id.sample_action) {
       
       
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        clearLog();
       
       
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        }
       
       
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        return true;
       
       
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        }
       
       
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        public void clearLog() {
       
       
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        LogFragment logFragment =  ((LogFragment) getActivity().getSupportFragmentManager()
       
       
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        .findFragmentById(R.id.log_fragment));
       
       
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        logFragment.getLogView().setText("");
       
       
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        }
       
       
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        }