GestureDetectorl监听
2016-01-25 12:25
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package com.example.gesturedetectorinterface;
/**
* write by harvic
* 2014-9-25
* blog.csdn.net/harvic880925
*/
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity implements OnTouchListener{
private GestureDetector mGestureDetector;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//使用派生自OnGestureListener
mGestureDetector = new GestureDetector(new gestureListener());
mGestureDetector.setOnDoubleTapListener(new doubleTapListener());
TextView tv = (TextView)findViewById(R.id.tv);
tv.setOnTouchListener(this);
tv.setFocusable(true);
tv.setClickable(true);
tv.setLongClickable(true);
}
/*
* 在onTouch()方法中,我们调用GestureDetector的onTouchEvent()方法,将捕捉到的MotionEvent交给GestureDetector
* 来分析是否有合适的callback函数来处理用户的手势
*/
public boolean onTouch(View v, MotionEvent event) {
return mGestureDetector.onTouchEvent(event);
}
//OnGestureListener监听
private class gestureListener implements GestureDetector.OnGestureListener{
// 用户轻触触摸屏,由1个MotionEvent ACTION_DOWN触发
public boolean onDown(MotionEvent e) {
Log.i("MyGesture", "onDown");
Toast.makeText(MainActivity.this, "onDown", Toast.LENGTH_SHORT).show();
return false;
}
/*
* 用户轻触触摸屏,尚未松开或拖动,由一个1个MotionEvent ACTION_DOWN触发
* 注意和onDown()的区别,强调的是没有松开或者拖动的状态
* 而onDown也是由一个MotionEventACTION_DOWN触发的,但是他没有任何限制,
* 也就是说当用户点击的时候,首先MotionEventACTION_DOWN,onDown就会执行,
* 如果在按下的瞬间没有松开或者是拖动的时候onShowPress就会执行,如果是按下的时间超过瞬间
* (这块我也不太清楚瞬间的时间差是多少,一般情况下都会执行onShowPress),拖动了,就不执行onShowPress。
*/
public void onShowPress(MotionEvent e) {
Log.i("MyGesture", "onShowPress");
Toast.makeText(MainActivity.this, "onShowPress", Toast.LENGTH_SHORT).show();
}
// 用户(轻触触摸屏后)松开,由一个1个MotionEvent ACTION_UP触发
///轻击一下屏幕,立刻抬起来,才会有这个触发
//从名子也可以看出,一次单独的轻击抬起操作,当然,如果除了Down以外还有其它操作,那就不再算是Single操作了,所以这个事件 就不再响应
public boolean onSingleTapUp(MotionEvent e) {
Log.i("MyGesture", "onSingleTapUp");
Toast.makeText(MainActivity.this, "onSingleTapUp", Toast.LENGTH_SHORT).show();
return true;
}
// 用户按下触摸屏,并拖动,由1个MotionEvent ACTION_DOWN, 多个ACTION_MOVE触发
public boolean onScroll(MotionEvent e1, MotionEvent e2,
float distanceX, float distanceY) {
Log.i("MyGesture", "onScroll:"+(e2.getX()-e1.getX()) +" "+distanceX);
Toast.makeText(MainActivity.this, "onScroll", Toast.LENGTH_LONG).show();
return true;
}
// 用户长按触摸屏,由多个MotionEvent ACTION_DOWN触发
public void onLongPress(MotionEvent e) {
Log.i("MyGesture", "onLongPress");
Toast.makeText(MainActivity.this, "onLongPress", Toast.LENGTH_LONG).show();
}
// 用户按下触摸屏、快速移动后松开,由1个MotionEvent ACTION_DOWN, 多个ACTION_MOVE, 1个ACTION_UP触发
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
Log.i("MyGesture", "onFling");
Toast.makeText(MainActivity.this, "onFling", Toast.LENGTH_LONG).show();
return true;
}
};
//OnDoubleTapListener监听
private class doubleTapListener implements GestureDetector.OnDoubleTapListener{
public boolean onSingleTapConfirmed(MotionEvent e) {
Log.i("MyGesture", "onSingleTapConfirmed");
Toast.makeText(MainActivity.this, "onSingleTapConfirmed", Toast.LENGTH_LONG).show();
return true;
}
public boolean onDoubleTap(MotionEvent e) {
Log.i("MyGesture", "onDoubleTap");
Toast.makeText(MainActivity.this, "onDoubleTap", Toast.LENGTH_LONG).show();
return true;
}
public boolean onDoubleTapEvent(MotionEvent e) {
Log.i("MyGesture", "onDoubleTapEvent");
Toast.makeText(MainActivity.this, "onDoubleTapEvent", Toast.LENGTH_LONG).show();
return true;
}
};
}
/**
* write by harvic
* 2014-9-25
* blog.csdn.net/harvic880925
*/
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity implements OnTouchListener{
private GestureDetector mGestureDetector;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//使用派生自OnGestureListener
mGestureDetector = new GestureDetector(new gestureListener());
mGestureDetector.setOnDoubleTapListener(new doubleTapListener());
TextView tv = (TextView)findViewById(R.id.tv);
tv.setOnTouchListener(this);
tv.setFocusable(true);
tv.setClickable(true);
tv.setLongClickable(true);
}
/*
* 在onTouch()方法中,我们调用GestureDetector的onTouchEvent()方法,将捕捉到的MotionEvent交给GestureDetector
* 来分析是否有合适的callback函数来处理用户的手势
*/
public boolean onTouch(View v, MotionEvent event) {
return mGestureDetector.onTouchEvent(event);
}
//OnGestureListener监听
private class gestureListener implements GestureDetector.OnGestureListener{
// 用户轻触触摸屏,由1个MotionEvent ACTION_DOWN触发
public boolean onDown(MotionEvent e) {
Log.i("MyGesture", "onDown");
Toast.makeText(MainActivity.this, "onDown", Toast.LENGTH_SHORT).show();
return false;
}
/*
* 用户轻触触摸屏,尚未松开或拖动,由一个1个MotionEvent ACTION_DOWN触发
* 注意和onDown()的区别,强调的是没有松开或者拖动的状态
* 而onDown也是由一个MotionEventACTION_DOWN触发的,但是他没有任何限制,
* 也就是说当用户点击的时候,首先MotionEventACTION_DOWN,onDown就会执行,
* 如果在按下的瞬间没有松开或者是拖动的时候onShowPress就会执行,如果是按下的时间超过瞬间
* (这块我也不太清楚瞬间的时间差是多少,一般情况下都会执行onShowPress),拖动了,就不执行onShowPress。
*/
public void onShowPress(MotionEvent e) {
Log.i("MyGesture", "onShowPress");
Toast.makeText(MainActivity.this, "onShowPress", Toast.LENGTH_SHORT).show();
}
// 用户(轻触触摸屏后)松开,由一个1个MotionEvent ACTION_UP触发
///轻击一下屏幕,立刻抬起来,才会有这个触发
//从名子也可以看出,一次单独的轻击抬起操作,当然,如果除了Down以外还有其它操作,那就不再算是Single操作了,所以这个事件 就不再响应
public boolean onSingleTapUp(MotionEvent e) {
Log.i("MyGesture", "onSingleTapUp");
Toast.makeText(MainActivity.this, "onSingleTapUp", Toast.LENGTH_SHORT).show();
return true;
}
// 用户按下触摸屏,并拖动,由1个MotionEvent ACTION_DOWN, 多个ACTION_MOVE触发
public boolean onScroll(MotionEvent e1, MotionEvent e2,
float distanceX, float distanceY) {
Log.i("MyGesture", "onScroll:"+(e2.getX()-e1.getX()) +" "+distanceX);
Toast.makeText(MainActivity.this, "onScroll", Toast.LENGTH_LONG).show();
return true;
}
// 用户长按触摸屏,由多个MotionEvent ACTION_DOWN触发
public void onLongPress(MotionEvent e) {
Log.i("MyGesture", "onLongPress");
Toast.makeText(MainActivity.this, "onLongPress", Toast.LENGTH_LONG).show();
}
// 用户按下触摸屏、快速移动后松开,由1个MotionEvent ACTION_DOWN, 多个ACTION_MOVE, 1个ACTION_UP触发
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
Log.i("MyGesture", "onFling");
Toast.makeText(MainActivity.this, "onFling", Toast.LENGTH_LONG).show();
return true;
}
};
//OnDoubleTapListener监听
private class doubleTapListener implements GestureDetector.OnDoubleTapListener{
public boolean onSingleTapConfirmed(MotionEvent e) {
Log.i("MyGesture", "onSingleTapConfirmed");
Toast.makeText(MainActivity.this, "onSingleTapConfirmed", Toast.LENGTH_LONG).show();
return true;
}
public boolean onDoubleTap(MotionEvent e) {
Log.i("MyGesture", "onDoubleTap");
Toast.makeText(MainActivity.this, "onDoubleTap", Toast.LENGTH_LONG).show();
return true;
}
public boolean onDoubleTapEvent(MotionEvent e) {
Log.i("MyGesture", "onDoubleTapEvent");
Toast.makeText(MainActivity.this, "onDoubleTapEvent", Toast.LENGTH_LONG).show();
return true;
}
};
}
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