[英]Multi touch problems with ID
在下面的代碼中,我正在測試設備上的多點觸控。 我的問題在於移動動作。 如果我用一根手指觸摸屏幕,則會在Logcat中獲得觸摸輸入的ID,而當我用第二根手指觸摸屏幕並開始移動該觸摸時,我會得到兩根手指的ID,盡管松開的手指不是不要動! 我很困惑,需要一些幫助來改進我的代碼。
@Override
public boolean onTouch(View v, MotionEvent event) {
int pointerId;
int pointerIndex;
synchronized (gameLoop) {
for (int i = 0; i < event.getPointerCount() && i < 2; i++) {
num = event.getPointerCount();
//id = event.getPointerId(i);
// Down
if(event.getActionIndex() == i && (event.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN || event.getActionMasked() == MotionEvent.ACTION_DOWN)) {
int j = event.getPointerCount();
int id = event.getPointerId(i);
String numDown = Integer.toString(j);
String sId = Integer.toString(id);
Log.i("Test", "Number DOWN: " + numDown + " ID: " + sId);
}
// Move
if(event.getActionMasked() == MotionEvent.ACTION_MOVE) {
int j = event.getPointerCount();
int id = event.getPointerId(i);
String numDown = Integer.toString(j);
String sId = Integer.toString(id);
Log.i("Test", "Moving: " + numDown + " ID: " + sId);
}
// Up
if(event.getActionIndex() == i && (event.getActionMasked() == MotionEvent.ACTION_POINTER_UP || event.getActionMasked() == MotionEvent.ACTION_UP)) {
int k = event.getPointerCount();
int kid = event.getPointerId(i);
String numUp = Integer.toString(k);
String ssId = Integer.toString(kid);
Log.i("Test", "Number UP: " + numUp + " ID: " + ssId);
}
}
}
return true;
}
case MotionEvent.ACTION_MOVE:
int j= event.getPointerCount();
int fingerOneDown=0;
int fingerTwoDown=0;
for(int i = 0; i < j; ++i)
{
int pointerIndex = i;
id= event.getPointerId(pointerIndex);
Log.d("pointer id - move",Integer.toString(id));
if(id== 0)
{
fingerOneDown = 1;
int fingerOneX = event.getX(pointerIndex);
int fingerOneY = event.getY(pointerIndex);
Log.e("finger touch","touch=="+fingerOneX+","+fingerOneY);
}
if(pointerId == 1)
{
fingerTwoDown = 1;
int fingerTwoX = event.getX(pointerIndex);
int fingerTwoY = event.getY(pointerIndex);
Log.e("finger touch","touch=="+fingerTwoX+","+fingerTwoY);
}
}
break;
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