best assistive touch for android

Before analyzing the android message mechanism, let's take a look at the Code: Public class mainactivity extends activity implements view. onclicklistener {private textview statetext; private button BTN; @ override public void oncreate (bundle savedinstancestate) {super. oncreate (savedinstancestate); setcontentview (R. layout. main); statetext = (textview) findviewbyid (R. id. TV); BTN = (button) findviewbyid (R. id. BTN); BTN. setonclicklistener (th

The example in this article describes how Android determines whether touch event points are in view scope. Share to everyone for your reference, specific as follows: Private Rect mchangeimagebackgroundrect = null; Private Boolean Isinchangeimagezone (view view, int x, int y) { if (null = = Mchangeimagebackgroundrect) { Mchangeim Agebackgroundrect = new Rect (); } View.getdrawingrec

Layout: Copy Code code as follows: Android:id= "@+id/relativelayout1" Android:layout_width= "Fill_parent" android:layout_height= "Fill_parent" > Android:id= "@+id/zoom_in"Android:layout_width= "Wrap_content"android:layout_height= "Wrap_content"Android:layout_alignparentleft= "true"Android:layout_alignparenttop= "true"android:text= "Zoom_in"/>Android:id= "@+id/zoom_out"Android:layout_width= "Wrap_content"android:layout_height= "Wrap_content"Android:layout_alignparentright= "tru

In the previous article, we analyzed the source code of View. onTouchEvent and found the processing principle of click and long-press events. But what if the custom control requires other gestures? If you need to determine a rolling event, the code you learned earlier cannot help, currently, you can also determine by yourself based on ACTOIN and the current Touch Location (if you want to customize rolling events, you can refer to the source code of Li

http://blog.csdn.net/xyz_lmn/article/details/12517911Learn about the Touch event dispatch process through a flowchart.http://blog.csdn.net/stonecao/article/details/6759189From the point of code analysis, although the current code has changed, but the author's analysis of the Android Touch event distribution Process understanding is very helpful.Http://www.2cto.co

handled during the event, if the return value is false, then the hand touches the text area and starts shaking, shaking for five seconds. And if the return value is true, the moment the finger is released, in response to the condition in the else if, stop shaking. If you keep pressing it, it will stop for five seconds.Before you enable the vibration, you also need to register the Androidmanifest.xml in the vibration, otherwise it will be abnormal. The program hangs directly. The contents of the

" 8 android:layout_height= "300d P " 9 android:layout_centerinparent=" true "/>10 11 When we press the rectangle Drawrectview, we can see the printed log information as follows, the Android touch event is passed from top to bottom, Activity-->viewgroup-->view 11-24 15:19:40.659:v/--debug--(32570): touchtestactivity dispatchtouchevent action=action_down 11-24 15:19:40.659:v/--debug--(32570): Mylayou

In actual development, the most commonly used multi-touch technology is the zoom-in and zoom-out function. For example, some image browsers can use multiple fingers to zoom in or out the images on the screen. For example, Some browsers can also zoom in or out the font by multi-touch. In fact, amplification and reduction are only one of the practical application examples of multi-

In the previous Android 4.0 touch screen message (One Capital One), we briefly described the acquisition of the entire touch screen message from the two parts closest to the hardware, however, for our system, the message at this time is not easy to use, and it is extremely inconvenient for application development. However, An