assistive touch for android

Recently need to put a touch screen device to TV, now more common is the use of USB interface Touch box, for various platforms, here is a general record on Android kernel in the Usbtouchscreen driver.Writing is not easy, reprint need to indicate the source: http://blog.csdn.net/jscese/article/details/41827495Driver compilation:The current kernel are all self-cont

Android touch message transmission mechanism A while ago, I wanted to add a touch effect (a View) to the desktop (the Launcher starter is actually an activity), which will be available for every touch, no matter what you do on the desktop, special effects will be displayed! I have been exploring and don't know how to s

$calledfromwrongthreadexception: Only the original thread, created a view hierarchy can touch its views. What the hell is going on here? The reason is that the view components in the Android system are not thread-safe, and if you want to update the view, you must update it in the main thread, and you cannot perform the updated operation on the child thread.In this case, we will notify the main thre

Turn: http://hi.baidu.com/xx%B9%C2%D3%B0%C6% AE %C1%E3xx/blog/item/d8257c44941db12bcefca3c1.html Let's start porting now. First, decompress your tslibonandroid file package and put it into the external \ tslibonandroid directory. in this folder, tests \ ts_calibrate.c can verify the touch screen, and analyze the situation. The Android app runs Java, so we must create a Java application here to implement ope

The job of the former is to add a touch effect (a view) to the Desktop (launcher launcher, which is actually an activity), and this special effect is available every time you touch it, no matter what you do on the desktop, it will show the effects! have been groping to do not know how to start, and then slowly after the experiment to know that there is an Android

Android Bottom Drive learning focaltech Touch Screen Example Understanding This week contacted a specific driver instance-----Focaltech Company's touch IC. The following summary of my personal understanding of touch-screen drive, divided into two aspects: hardware and software-driven aspects Hardware aspects: 1. Bri

Android multi-touch is essentially supported by LCD drivers and programming. Currently, mobile phones that use capacitive screen touch can support multi-touch multitouch technology, provides a better user experience for webpage scaling and gesture operations. On the Android

The methods associated with Touch events in Android include:dispatchtouchevent (motionevent ev),onintercepttouchevent (motionevent ev) ,ontouchevent (motionevent ev), controls that respond to these methods include:viewgroup,View,Activity. The corresponding relationship between the method and the control is shown in the following table: Touch Event-re

Distribution and Consumption of Touch events in Android programming Methods related to Touch events in Android include dispatchTouchEvent (MotionEvent ev), onInterceptTouchEvent (MotionEvent ev), and onTouchEvent (MotionEvent ev). controls that can respond to these methods include: viewGroup, View, and Activity. The

A widget in Android can register multiple events at the same time, such as a Button. It can listen to touch events, click events, and hold events at the same time. Different operations can be performed under different circumstances, so how is it done? First, the onTouch event occurs first. The returned value of this event also determines whether a long-press event or a click event can occur.

Android's Touch Icon processing solution, androidiconApple's Touch Icon is familiar to us. It is an Icon Apple needs to add network applications (or web pages) to the desktop, web links with these Touch icons are more similar to Native applications. Because Apple devices such as IPod, IPhone, and IPad are widely used, many web pages provide icons such as

Cases triggered by the Android Touch event Transfer Mechanism I have also written two articles about the Android Touch event transfer mechanism. I think the Touche event is still well understood, but I have encountered a problem recently, let me learn about the Android Touc

Today, I converted an Email web version written with sencha touch into an Android mobile phone version. Several problems were found. One Eclipse plug-in is MDS. MDS applaud 1.2-https://svn.codespot.com/a/eclipselabs.org/mobile-web-development-with-phonegap/tags/r1.2/download 1. Although the plug-in provides integrated options for sencha and phonegap, it still cannot run after the project is created. T

( android.os.Process.THREAD_PRIORITY_URGENT_DISPLAY); try { RawInputEvent ev = new RawInputEvent(); while (true) { InputDevice di; readEvent(ev); send = preprocessEvent(di, ev); addLocked(di, curTime, ev.flags, ..., me); } } }; Input event distribution threadAn input event distribution t

-view no consumption events, the event will be anti-yearning to pass, then the parent view (ViewGroup) can be consumed, if still not consumed, The Ontouchevent () function of the activity is finally reached. (4) If the view does not consume the action_down, then other events will not be passed over. (5) Ontouchlistener takes precedence over ontouchevent () to consume the event. The above consumption means that the corresponding function return value is true. read more directly in PDF: Mastering