best assistive touch for android

Multi-Touch (MultiTouch) refers to a technique that allows a computer user to control a graphical interface through multiple fingers at the same time. and multi-touch technology is a single touch, single touch device has been for many years, small size of the touch-type mobi

super.onintercepttouchevent (EV) and returns false as the processing logic.***************************************************************************************************************Event Response: Public boolean ontouchevent (motionevent ev)The Dispatchtouchevent returns super.dispatchtouchevent (EV) and onintercepttouchevent returns TRUE or returns Super.onintercepttouchevent ( EV), the ontouchevent will be called. The event response logic for Ontouchevent is as follows:If the event is pa

I have previously written about the horizontalscrollview slide and button event trigger issues, but not all of them. I have been thinking about this issue for the past few days. Today I have a better solution, the final application works well in the project. First, describe the functions: (1) click the button to trigger the button function without sliding. (2) press the button to slide to trigger a sliding event. Here, the press contains the long and short press conditions. First of all to solve

public void Setpaintstyle (Style paintstyle) {this.paintstyle = Paintstyle; Initpaint (); } public void Setpaintalph (int paintalph) {This.paintalph = PAIntalph; Initpaint (); @Override public void Run () {//TODO auto-generated method stub while (misrunning) {/** to get update tour The time before the play **/long starttime = System.currenttimemillis (); /** here plus the line Cheng Ann full lock **/synchronized (surfaceholder) {Dodraw (); /** get update game end time **/long

Learn to slide the android gesture, Multi-Touch Zoom to reduce the picture, share for everyone to refer to, the specific code as follows1. The layout file is as follows Main.xml 2. Custom zoom Picture Control Zoomimageview.java Code: Package com.ymw.zoomimage; Import java.util.Observable; Import Java.util.Observer; Import Android.content.Context; Import Android.graphics.Bitmap; Import An

Android Basics Getting Started tutorial--3.4 touchlistener PK ontouchevent + multi-point touchtags (space delimited): Android Basics Getting Started TutorialIntroduction to this section: Title, this section brings you a comparison of Touchlistener and ontouchevent , as well as a multi-touch point of knowledge!Touchlistener is based on listening, while On

Multi-touch operation of intelligent terminal Equipment brings us all kinds of cool experience, which also makes many Android developers interested in the development of multi-touch programs. In fact, the implementation of multi-touch programs is not so remote, but relatively easy. This article mainly through an exampl

1. Public classCustomscrollviewextendsScrollView {PrivateGesturedetector Mgesturedetector; View.ontouchlistener Mgesturelistener; PublicCustomscrollview (Context context, AttributeSet attrs) {Super(context, attrs); Mgesturedetector=NewGesturedetector (Context,Newyscrolldetector ()); Setfadingedgelength (0); } @Override Public Booleanonintercepttouchevent (motionevent ev) {return Super. onintercepttouchevent (EV) mgesturedetector.ontouchevent (EV); } //Return False if we ' re scrolling in

There's a strange phenomenon under Android's WebView and its own browser.Phenomenon :1, if the input box inputs or textarea (z direction, that is, the upper layer) has a div, when the div is clicked to make the div hidden, input will get focus, resulting in a soft keyboard popup.2, browse view click a place to switch to edit view, if the browse view click on the location of the edit view has an input box, then after the switch, the Edit page input box will automatically get focus.The experience

1. Auto FocusIn the Param set before and after the preview Setfocusmode (); for Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO or Camera.Parameters.FOCUS_MODE_AUTO , it is recommended that the latter be used. Note When this method is called, calling Camera.autofocus () again causes the focus to failRefer to this article http://blog.csdn.net/yanzi1225627/article/details/85776822. Touch FocusTouch focus needs to cancel the previously set focus before set

The event types in android include button events and screen Touch events. Touch events are the basic events of screen Touch events, so it is necessary to have a deep understanding of them.A simple screen Touch action triggers a series of

Android Touch event Transfer Mechanism Recently, I have always encountered problems with Android Touch events, such as sliding conflicts. I have also spent some time learning about the transmission mechanism of Android Touch even

ontouch method is called when a touch event is triggered. Ontouchevent method: override the method in activity. Android touch event processing has three layers: Activity layer, viewgroup layer, and view layer.Several Basic Principles of touch event processing:1. If action_down is not processed at a level, the layer w

called to determine whether to intercept. If not intercepted, then the process is consistent with the above "process one", if intercepted, then VIEWGROUPB will eat the event, directly ignore the VIEWC. However, Onintercepttouchevent is an internal method, and the method itself does not affect the Ondispatchtouchevent return value of the current node. Ondispatchtouchevent of the return valueTypically, the ondispatchtouchevent return value of a node is only related to the Ontouchevent return valu

delivery (returns true to block); At this point the event will begin to pass from the bottom up, and if a layer (assuming D) is consumed on the way (that is, Ontouchevent returns True), then this event will terminate the pass-up, And later events will be processed directly by the Dispatchevent method of D (Ontouchevent method) (Event delivery order a-b-c-d); If no ontouchevent are consumed during the pass, then this event will be processed directly by the activity's ontouchevent. Th

PhoneGap Photo Plugin Select the image in the library, the code is as follows:Navigator.camera.getPicture (function (URI) {console.log (URI);//Get the URI of the picture here}, function (err) {Console.log (err);}, { quality:70, DestinationType:navigator.camera.DestinationType.FILE_URI, sourcetype: Navigator.camera.PictureSourceType.PHOTOLIBRARY, savetophotoalbum:true});The path to the picture returned is this:Before Android 4.4: CONTENT://

target list, the final target view is found, and its ontouch/ontouchevent is executed with the following logic: in Ontouch and ontouchevent execution, The default processing returns False, that is, when you click on the child view of ViewGroup, when the Action_down event is dispatched, Viewgroup.ontouch and ontouchevent can still be executed, and registering the view's Onclicklistener will have an impact on the return value of the event consumption, as follows: 1.action_down event, if view/ Vie

Android touch event distribution mechanism, androidtouch Reprinted please indicate the source: http://blog.csdn.net/ZhouLi_CSDN/article/details/45878337 After reading so many blogs on the Internet, the android system's event processing is still not very thorough, or some blogs are always ambiguous or incorrect or comprehensive. Therefore, I have summarized the e

Apple's touch icon is relatively familiar to us, it is Apple to support Web applications (or Web pages) to add to the desktop needs of the icon, with these touch icon Web links more and native application more similar. Because of the wide range of devices such as Apple device Ipod,iphone,ipad, many Web pages provide the icon resource for touch icon. Since there i

Multi-touch in Android Development If you are interested in developing multi-touch programs, this article will be a good start. In Android Application Development, multi-touch is not so far away, it is easy to implement. Next, let's first understand the principle of multi-