我有一个活动,实现了一个手势检测器来捕捉用户导航到其他屏幕的输入。这工作正常 - 但 - 我最近更新了一个派生自BaseActivity的类来添加一个onClick函数,现在这个click事件似乎阻止了onFling被击中。 onClick绑定到我的屏幕上的TextView区域(在LinearLayout中)。 resultsClick方法使用XML布局中的onClick属性连线到TextView。Android onClick拦截onFling
我试过改变onSingleTapUp和onDown返回值没有运气。我也尝试将日志语句添加到下面的所有函数中。当我在TextView区域中投掷时,它们都没有闪光,但是它们在屏幕的其他区域进行。
也许我使用了错误的搜索条件,但似乎找不到解决此问题的示例 - 但我确信此问题已在之前解决。
public class DerivedActivity extends BaseActivity
{
...
/**
* resultsClick - The user clicked on the Results area
* @param v
*/
public void resultsClick(View v)
{
try
{
Log.i(this.toString(), "resultsClick");
startActivity(new Intent(this, Results_TabHost.class));
}
catch (Exception e)
{
Log.e(this.toString(), "Exception" + e.toString());
}
}// end resultsClick
...
}
这是基础类,它实现GestureListener代码
public class BaseActivity extends ActivityGroup
implements OnGestureListener
{
...
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_MAX_OFF_PATH = 250;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
public boolean onFling(MotionEvent e1,
MotionEvent e2,
float velocityX,
float velocityY)
{
try
{
Log.i(this.toString(), "onFling");
// jump right out if not a swipe/fling
if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)
{
return false;
}
// right to left swipe
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE &&
Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)
{
Log.i(this.toString(), "fling left");
rightArrowClick(null);
}
else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE &&
Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)
{
Log.i(this.toString(), "fling right");
leftArrowClick(null);
}
}
catch (Exception e)
{
Log.e(this.toString(), "Exception" + e.toString());
}
return true;
}// end onFling
// These next methods we are required to have - even if unused -
// in order for the Gesture Handling to work
@Override
public boolean onTouchEvent(MotionEvent motionEvent)
{
return this.gestureDetector.onTouchEvent(motionEvent);
}
@Override
public void onLongPress(MotionEvent e)
{
// Intentionally not handling - must be overridden by listener class
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY)
{
// Intentionally not handling - must be overridden by listener class
// Intentionally returning true - per code examples
return true;
}
@Override
public void onShowPress(MotionEvent e)
{
// Intentionally not handling - must be overridden by listener class
}
@Override
public boolean onSingleTapUp(MotionEvent e)
{
// Intentionally not handling - must be overridden by listener class
// Intentionally returning true - per code examples
return true;
}
@Override
public boolean onDown(MotionEvent e)
{
// Intentionally not handling - must be overridden by listener class
// Intentionally returning true - per code examples
return true;
}
...
}
@CodeFusionMbile - 谢谢你的建议。我只是尝试使用上面的代码更新onTouchEvent,但它在我看到的行为中没有任何区别。我为每个手势事件添加了一个日志来确保。当我尝试在屏幕上滑动时,我看到结果中的日志单击,但我没有看到其他任何人正在登录。 – bursk 2010-11-22 21:19:12