I have a problem with a second touch on screen and I would like to disable it. Primaly, object that has been touch if first finger is released is teleporing to second finger (MotionEvent.ACTION_POINTER_DOWN).
Is it possible to disable this event?
Try add touch listener and catch and cancel ACTION_POINTER_DOWN/UP:
public boolean onTouch(View v, MotionEvent event) {
switch(event.getActionMasked()) {
case MotionEvent.ACTION_POINTER_DOWN:
Log.d("ButtonCode", "ACTION_POINTER_DOWN");
return true;
break;
case MotionEvent.ACTION_POINTER_UP:
Log.d("ButtonCode", "ACTION_POINTER_UP");
return true;
break;
default:
break;
}
return false;}
Related
As per android MotionEvent documents: A change has happened during a press gesture (between ACTION_DOWN and ACTION_UP). The motion contains the most recent point, as well as any intermediate points since the last down or move event.
ACTION_MOVE Android doc
so when i apply a setOnTouchListene on my view is perfectly works, It give me ACTION_DOWN, ACTION_UP, and ACTION_MOVE
but my problem is i just want to ignore a ACTION_DOWN events exactly before ACTION_MOVE. Because ACTION_MOVE event occur only after the ACTION_DOWN event as per its documents.
my coding:
button.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
Log.e("Mouse: ", "Click");
break;
case MotionEvent.ACTION_MOVE:
Log.e("Mouse: ", "Move");
break;
}
return false;
}
});
So, there is any why to ignore ACTION_DOWN event. Because user only want to move not want to click, and ACTION_MOVE is also occur ACTION_DOWN before it execute it self.
Thanks...
According to your comment - you can play with counter. For example:
private static int counter = 0;
...
button.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
Log.e("Mouse: ", "Click");
break;
case MotionEvent.ACTION_MOVE:
counter++; //check how long the button is pressed
if(counter>10){
Log.e("Mouse: ", "Move");
}
break;
case MotionEvent.ACTION_UP:
if(counter<10){
//this is just onClick, handle it(10 is example, try different numbers)
}else{
//it's a move
}
counter = 0;
break;
}
return false;
}
});
I am facing problem during detecting touch events. Its working fine without scrolling. But after scroll finished when I am removing finger not able to receive motion up event.I am using following code.
linearMain.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// Do Something
Log.d("Touch", "Touch down");
// Now Set your animation
slidingDrawerMos.startAnimation(slideOutAnimation);
slidingDrawerReviews.startAnimation(slideOutAnimation);
slidingDrawerMos.setVisibility(View.GONE);
slidingDrawerReviews.setVisibility(View.GONE);
break;
case MotionEvent.ACTION_MOVE:
// Do Something
Log.d("Touch", "Touch move");
break;
case MotionEvent.ACTION_UP:
// Do Something
Log.d("Touch", "Touch up");
slidingDrawerMos.setVisibility(View.VISIBLE);
slidingDrawerReviews.setVisibility(View.VISIBLE);
// Now Set your animation
slidingDrawerMos.startAnimation(slideInAnimation);
slidingDrawerReviews.startAnimation(slideInAnimation);
break;
case MotionEvent.ACTION_CANCEL:
Log.d("Touch", "Touch cancel");
break;
default:
break;
}
return true;
}
});
your_control.setMovementMethod(new ScrollingMovementMethod());
and
findViewById(R.id.your_control).getParent()
.requestDisallowInterceptTouchEvent(false);
i'am using imageview on touch listener in this motion event not working why this happen any one have idea regarding this help me.
here is my code
img_View11.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
Log.i("img_View11", "img_View11 _1");
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
Log.i("img_View11", "img_View11 _2");
break;
case MotionEvent.ACTION_MOVE:
Log.i("img_View11", "img_View11 _3");
break;
case MotionEvent.ACTION_UP:
Log.i("img_View11", "img_View11 _4");
break;
}
return false;
}
});
here my out put show like this img_View11_1 and two img_View11_2
Log.i("img_View11", "img_View11 _1");
Log.i("img_View11", "img_View11 _2");
Question: Why MotionEvent.ACTION_MOVE and MotionEvent.ACTION_UP not working ?
Change "return false;" to "return true;" so that it will continue to receive calls.
I am currently using dispatchTouchEvent to grab touch events, is there an easy way to distinguish between a click and a "drag" stylt gesture?
DispatchTouchEvent is called with a MotionEvent parameter. Method getAction within MotionEvent can return
ACTION_DOWN
ACTION_MOVE
ACTION_UP
ACTION_CANCEL
Then set on ACTION_DOWN flag isClick. If there is ACTION_MOVE clear isClick flag.
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
isClick = true;
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
if (isClick) {
//TODO Click action
}
break;
case MotionEvent.ACTION_MOVE:
isClick = false;
break;
default:
break;
}
return true;
}
set up a threshold limit.When you move the pointer within a small range make it recognized as a click or else a movement
I'm trying to use multitouch as a method to press 2 things simultaneously.
Here's my Code:
TouchHandle.setOnTouchListener(new OnTouchListener () {
public boolean onTouch(View view, MotionEvent event) {
int actions = event.getActionMasked();
switch (actions)
{
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_POINTER_DOWN:
SendKeyCode(Server, "keydec.down");
case MotionEvent.ACTION_POINTER_UP:
SendKeyCode(Server, "keydec.up");
case MotionEvent.ACTION_UP:
}
return true;
}
});
The problem is that when I touch the screen, the server is retrieving "keydec.down" and "keydec.up" even thought I haven't removed my finger yet from the touchscreen. So the View TouchHandle is detecting an ACTION_POINTER_DOWN and ACTION_POINTER_UP when my finger touches the screen even if I haven't pulled my finger up yet. Any thoughts?
int actions = event.getAction();
switch (actions)
{
case MotionEvent.ACTION_DOWN:
break;
case MotionEvent.ACTION_POINTER_DOWN:
SendKeyCode(Server, "keydec.down");
break;
case MotionEvent.ACTION_POINTER_UP:
SendKeyCode(Server, "keydec.up");
break;
case MotionEvent.ACTION_UP:
break;
}
You should use breaks between cases. And i also think that these MotionEvent constants might work with event.getAction() try that one.