[問題] activity捕捉ontoucheven 事件
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
if (rotatBitmap == null) {
throw new NoBitMapError("Error,No bitmap in RotatView!");
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: {
down_x = event.getX();
down_y = event.getY();
current_degree = detaDegree(o_x, o_y, down_x, down_y);
vRecord.reset();
// handler.sendEmptyMessage(stop);
a = a_max;
break;
}
case MotionEvent.ACTION_MOVE: {
down_x = target_x = event.getX();
down_y = target_y = event.getY();
float degree = detaDegree(o_x, o_y, target_x, target_y);
// 滑過的弧度增量
float dete = degree - current_degree;
// 如果小於-90度說明 它跨周了，需要特殊處理350->17,
if (dete < -270) {
dete = dete + 360;
// 如果大於90度說明 它跨周了，需要特殊處理-350->-17,
} else if (dete > 270) {
dete = dete - 360;
}
lastMoveTime = System.currentTimeMillis();
vRecord.add(dete, lastMoveTime);
deta_degree += dete;
//addDegree(dete);
circle = (int) (deta_degree / 360);
Log.e("dete", String.valueOf(circle));
current_degree = degree;
postInvalidate();
break;
}
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP: {
a = a_min;
//double lastupTime = System.currentTimeMillis();
//double detaTime = lastupTime - lastMoveTime;
up_x = event.getX();
up_y = event.getY();
up_degree = detaDegree(o_x, o_y, up_x, up_y);
// 放手時的速度
speed = speed + vRecord.getSpeed();
if (speed > 0) {
speed = Math.min(VRecord.max_speed, speed);
} else {
speed = Math.max(-VRecord.max_speed, speed);
}
// System.out.println("speed:" + speed);
if (speed > 0) {
isClockWise = true;
// v = 1;
} else {
isClockWise = false;
// v = -1;
}
currentTime = System.currentTimeMillis();
handler.sendEmptyMessage(0);
break;
}
}
return true;
}
這是ontoucheven裡面的動作 這個class繼承View
我想捕捉這個動作裡面circle變量,他會隨著使用者觸控不斷增加變量
把circle設成全域變數 在另外一個activity捕捉到的只有初始者0
要怎麼做 才能在activity 知道使用者已經touch 並不斷傳回circle值
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