何种安乐器用于在安乐斯的开车上向左边或右边上roll?
I m relatively new to Android development. I m developing an app with a ListView. I ve followed the info in #1338475 and have my app recognizing the fling gesture, but after the gesture is complete, ...
何种安乐器用于在安乐斯的开车上向左边或右边上roll?
最简单的方法是探测“Fling”姿态。 甲型六氯环己烷和乙型六氯环己烷在检测器中安装了基本姿态,如缝.、roll、长报、双龙头、pin等。
文件可在。
你们做的就是GestureDetector,超越了TouchEvent方法,认为你有兴趣检测有关姿态,并将动议传给GestureDetector。
您还必须向GestureDetector提供“OnGestureListener”执行(最容易推广简单的OnGestureListener),并将处理你的所有姿态。
例:
class MyView extends View
{
GestureDetector mGestureDetect;
public MyView(Context context)
{
super(context);
mGestureDetect = new GestureDetector(new SimpleOnGestureListener()
{
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)
{
//check if the fling was in the direction you were interested in
if(e1.getX() - e2.getX() > 0)
{
//Do something here
}
//fast enough?
if(velocityX > 50)
{
//etc etc
}
return true;
}
}
}
public boolean onTouchEvent(MotionEvent ev)
{
mGestureDetector.onTocuhEvent(ev);
return true;
}
}
它是所有来源存放处的,以便浏览:
https://android.googlesource.com/plat/ Packages/apps/Launcher/+/master/src/com/android/apper/Workspace.java
在随后的版本中,它使用 and View.on TouchEvent, 以便赶上拖拉机,并根据从接触点起的移动量进行人工计算。
https://developer.android.com/vis/android/gesture/GestureLibraries.html” rel=“nofollow noreferer” 班级。 http://android-developers.blogspot.com/2009/10/gestures-on-android-16.html
我用了这 myself,因此,我可以给你更多的信息,但也可能有用:
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