こんにちは私のアプリでは、上半分の指で上半分の何かを制御し、下半分の指で下半分の何かを同時に制御したい場所があります。だから私はマルチタッチを実装しようとしましたが、ACTION_MOVEを正しく取得できないようです。画面上で2本の指を動かすと、最初に画面に触れた側のオブジェクトのみが移動します。なぜそうなのかしら？これが私のコードです：
public boolean onTouch(View v, MotionEvent event){
//needs multitouch
if(checkInGame()){
int pointerIndex = 0;
if(event.getY() < this.getMeasuredHeight() / 2){
pointerId1 = event.getPointerId(event.getActionIndex());
pointerIndex = event.findPointerIndex(pointerId1);
}else{
pointerId2 = event.getPointerId(event.getActionIndex());
pointerIndex = event.findPointerIndex(pointerId2);
}
switch(event.getAction() & MotionEvent.ACTION_MASK){
case MotionEvent.ACTION_MOVE:{
int numPointers = event.getPointerCount();
for (int i = 0; i < numPointers; i++){
if(event.getY(i) < this.getMeasuredHeight() /2){
Log.d("Touch","Move1");
int moveX = 0;
int moveY = 0;
moveX = (int) event.getX(i) - sX;
moveY = (int) event.getY(i) - sY;
ship1.setLoc(moveX, moveY);
sX = sX + moveX;
sY = sY + moveY;
}else{
Log.d("Touch","Move2");
int moveX = 0;
int moveY = 0;
moveX = (int) event.getX(i) - sX2;
moveY = (int) event.getY(i) - sY2;
ship2.setLoc(moveX, moveY);
sX2 = sX2 + moveX;
sY2 = sY2 + moveY;
}
return true;
}
}
case MotionEvent.ACTION_DOWN: {
if(event.getY(pointerIndex) < this.getMeasuredHeight() /2){
Log.d("Touch","Top1");
sX = (int) event.getX(pointerIndex);
sY = (int) event.getY(pointerIndex);
}else{
Log.d("Touch","Bottom1");
sX2 = (int) event.getX(pointerIndex);
sY2 = (int) event.getY(pointerIndex);
}
return true;
}
case MotionEvent.ACTION_POINTER_DOWN:{
if(event.getY(pointerIndex) < this.getMeasuredHeight() /2){
Log.d("Touch","Top2");
sX = (int) event.getX(pointerIndex);
sY = (int) event.getY(pointerIndex);
}else{
Log.d("Touch","Bottom2");
sX2 = (int) event.getX(pointerIndex);
sY2 = (int) event.getY(pointerIndex);
}
return true;
}
}