I made an App for my children.
The problem is that he hold the tablet with the thumbs slightly inside the view margins.
By doing so, he can't click on view's buttons while one hand is holding the device.
There is a way to ignore all the long presses on the entire App?
My aim is to let him to click on the view's button while holding the device with thumbs inside the view margins.
I already searched with Google but without lucky.
Thanks in advance!
Related
I have a grid of buttons (using grid layout group). I created this by adding a UI element and duplicating it 9 times (10 buttons) and then just applying a grid layout group to the parent object while all of the buttons were still at 0,0,0. This laid out the buttons exactly as i wanted in the grid shape that i chose. When i run this on PC and click a button, it registers perfectly. When i build it down to an apk and put it on my android, the buttons don't click when you press on them, but rather when you press way off to the right in some empty field space. But the "clickable grid area" as i'll call it, is perfectly transposed into that open field space. So i have my 5x2 visible button elements on the screen. If i touch them, nothing happens. Randomly touch in empty space until one of the buttons activates, and the clickable grid is in the exact shape of the visible elements except not on top of the elements. I'm not 100% familiar with resolution settings yet but i don't think that has all too much to do with this. What am i missing and what settings can i change?
so the problem ended up being that the anchors were not set to center, they were set to top left. This was set automatically by the grid layout group component. Remove grid layout, set positions manually, all is well.
You need to define column and row for each button
I have searched a lot but I couldn't find an answer.
I want to implement something like in Go Launcher. When you drag an icon in app drawer and move it out of container top or bottom bound, the list begins to scroll.
So far, I have tried following things:
Dispatch touch events to simulate scrolling - impossible while touching the screen
Use smoothScrollBy() method - almost there, but it scrolls only screen height distance
Use scrollBy() - it moves only the container and leaves blank space. I would put there some rows if only I could be able to reuse views that went off the screen.
I need the ListView to scroll SMOOTHLY.
So here goes ma question. Anybody knows how can it be done? I'll put a gratitude in About section of my app to person who will help me:)
using listview and try scrollToPosition（），or smoothscrollBy（）
Here's scenario:
I have a RalativeLayout holding ImageView and few TextViews.
There are "linkified" elements inside these TextViews such as URLs, phone numbers, etc.
Clicking on the links result in various actions, also clicking on ImageView triggers some action too.
Now - I want to have outer onClick attached to the complete area of RelativeLayout in such way that if user clicks on any spot withing the layout (but outside of the image and links) then it executes another action
Right now I have layout#onClick, image#onClick, and embedded links are processed by Linkify. Image and links clicks are working reliably but clicks on layout are captured about 50% of the time and I suppose would frustrate users to the point of tears. Any tricks that you guys can suggest to improve reliability? And if not what would be a good way of achieving this from the best usability standpoint?
Since no one came out with answer at least I can share my thoughts about the solution. Basically I decided not to fight overlapping click handlers and instead, start with onClick enabled on the parent. Then, when the parent detects the click it turns it's own focus off and lets other controls take care of clicks. I also added "Off" button that is visible only when parent is expanded and clicking on that collapses the parent and puts the focus back into the parent view.
Let me know if you know better solution
Doubtless this is caused by my decidedly unorthodox layout - I have buttons in a LinearLayout in an Activity which is placed by an ActivityGroup into a Gallery. The ActivityGroup is also the adapter implementation and the over-all effect is full-screen sliding, snapping panels.
This is working (a treat, actually) except that a touch event on the parent layout puts all the buttons into the pressed state (and any release removes the state). A touch on an individual button is only delivered to that button.
The buttons are not receiving any events, they're only changing state.
Have I done something obviously wrong? Is this a known bug and is there a work-around?
Any insights would be very much appreciated.
As obscure as this problem is its solution may be of use to someone else, so I'll answer my own question.
As mentioned, I'm (mis)using the Gallery to provide a slidey-panel à la iPhone. I do this by returning the top level window of an Activity when the Gallery asks its Adapter implementation for a view.
Typical use of a Gallery would result in small Views to which it's desirable for the press event to be applied - it's more like a button then it is a panel. Our use means that there are many buttons in a single view and we don't want the press event to ever be applied globally.
So the work-around was very easy. I extended Gallery and deliberately broke pointToPosition(int x, int y), returning INVALID_POSITION every time. The Gallery still does everything else expected of it but skips trying to apply the touch down event to any elements but itself (to prepare itself to scroll or fling).
I hope this is of value to someone.
The views are not cached in a ViewFlipper. Is there a way wherein we can get an image of the view and show it to user so that he sees the Ui as we see on Home scrren(when we swipe the previous view also moves along and when we lift our finger, only then the next view is shown completely.)
What I want to do is that when the user starts moving his finegr on screen, the view should also move along(create an image of view).
I am not getting to do this, as when we swipe the present view goes and next view comes, we do not get both visible when we r moving our finger on screen.
Please if anyone gets what I am trying to do, do help me.
Thanks,
Farha
It's tricky to get scroll and swipe tracking working on Android, while using ViewAnimator or its subclasses.
They allow you to set in and out animations and start them at a given moment, but they work with discrete, either-this-or-the-other-view animations. They are actually using FrameLayout and after in or out animation is executed, other views' visibility is set to View.GONE to hide them from showing up under/over your current View.
The Launcher and the Gallery application are actually doing the functionality you want, by using a different approach.
They track the user touch input (onTouchEvent()), on MotionEvent.ACTION_MOVE they perform animations manually and on MotionEvent.ACTION_UP snap to the appropriate view, just like in the iPhone.
Unfortunately, this approach is actually more complicated than it looks like.
With the manual handling, you have to ensure that you are taking care of everything related to the touch input. This includes a lot of flag-raising, value-checking, event-delegating, etc.
If you want to get better acquainted with this, take a look at these classes from Gallery3D or Launcher's source code.
One other way to get nice horizontal scrolling is to use HorizontalScrollView.
You have to figure out a way to recycle your views, like you would with a ListView and you have to add the snap-to-view logic, but if you have to take care of a small number of views it could be the easiest approach.
Hope that helps.