assistive touch for android

In the last article I took you all together to achieve the effect of the Android waterfall flow photo wall, although this effect is very cool, but in fact, it is only a semi-finished product, because all the pictures in the wall of the picture is can not point. Therefore, in this article, we have to improve this function, add click on the image to be able to browse the large image of the function, and in the larger view of the image can also be a mult

responsibility. Write a Main class Packagecom.design.test; Public classTestmain { Public Static voidMain (string[] args) {//TODO auto-generated Method StubHandler leader =NewLeader (); Handler Manager=NewManager (); Handler boss=NewBoss (); Leader.setsuccessor (manager); Manager.setsuccessor (boss); Leader.handlerrequest ("Zhang San", 800); System.out.println ("----------------------"); Leader.handlerrequest ("Zhang San", 1200); System.out.println ("----------------------"); Leade

) Parse the command input, and if it is playback, read each event from the file and calculate the time difference between each event, then write it to the corresponding file node according to the FD and filename corresponding.Android.mk need to be under the option, so that you can use the STL library, where the static compilation, so as not to download to some devices cannot find the libraryLocal_c_includes + = Bionic Bionic/libstdc++/include External/stlport/stlportLocal_static_libraries: = lib

Mainactivity as follows:Package Cn.c;import android.os.bundle;import Android.app.activity;import android.view.motionevent;/** * Demo Description: * Analyze the Android event distribution and processing mechanism * * Summary: * 1 ViewGroup inherited from the view * event is passed in the direction: from the outermost (Activity) to the most inner (a view) * Event The consumption direction is: From the most inner layer (a view) passed to Outermost (Act

Reprint Please specify source: http://blog.csdn.net/zhaokaiqiang1992The open source project that we are going to introduce to you today is the Photoview project from GitHub, the main function of this project is to achieve the reduction of the image of the common ImageView control, including single touch and multi touch.PhotoView's GitHub project address: Https://github.com/chrisbanes/PhotoViewThe directory structure of the test projectWe can copy the

In the development of Android UI, we often encounter this requirement:Two components that support sliding, such as the ListView nested multiple Listview,listview item is a Viewpager or gallary? or ScrollView nested ScrollView and so on.In general, you may also need to support several features such as:¤ Two-layer components can slide¤ Do not let two components slide at the same time, or let two components sliding simultaneously and can adjust themselve

Recently, the viewflipper class was used in the project. It seems that the effect is really amazing. Today I tried to do it myself. It is really good. First, define viewflipper. XML in layout. Viewflipper contains five images for gesture switching. Public class viewflipperactivity extends activity implements ontouchlistener, android. view. gesturedetector. ongesturelistener {private viewflipper Flipper; listener; private int mcurrentlayoutstate; Pri

The dispatchTouchEvent method of the currently top-level viewGroup starts to pass the user's touch screen behind the scenes. Then the onInterceptTouchEvent method is triggered. Then the OnTouch event is triggered. The process is as follows: First, trigger the dispatchTouchEvent of the ACTIVITY. Then, the onUserInteraction of the ACTIVITY is triggered. Then, the dispatchTouchEvent of LAYOUT is triggered. Then, the onInterceptTouchEvent of LAYOUT

1. onTouch: the method in the onTouchListener interface of the View.OnTouchEvent: This method is defined in the view class and all subclasses override it to process the gesture events passed to the view.2. A simple screen Touch action triggers a series of Touch events: ACTION_DOWN-> ACTION_MOVE...-> ACTION_MOVE-> ACTION_UP3. Each View subclass in the android syst

Following the previous Android WebView FAQ and solution summary, we summarized some common problems for webview processing. This time we will talk about the touch event in webview: Sometimes in development, we need to add the webview touch event processing, such as adding the sliding effect or similar to the page flip effect in reading. At this time, we need to r

(R.layout.activity_main); img = (ImageView) Findviewbyid (r.id.img);D rawable drawable = Getresources (). getdrawable (R.drawable.ico); Img.setimagedrawable (drawable); attacher = new Photoviewattacher (IMG); attacher.update ();}}Let's say we're in the code behind. Used amimageview.setimagedrawable/setimagebitmap/setimageresource/and so on, we just need to call Attacher.update (). Demo: Https://github.com/ZhaoKaiQiang/PhotoViewDemo Copyright notice: This article Bo Master original articles, blo

than the screen, the control range if (Rect.width () >= width) {if (Rect.left > 0) {deltax =-rect . Left; } if (Rect.right Inside the Onscale remember to call: /** * Set ZOOM ratio * * Mscalematrix.postscale (scalefactor, Scalefactor, detector.getfocusx (), Detector.getfocusy ()); Checkborderandcenterwhenscale (); Setimagematrix (Mscalematrix); This is good, can be free to enlarge any place, and will not appear on the edge

I want to send a system multi-touch event to Android. I found someone asking online, but no one has the answer ~ No one answered after I posted the post ~ It took a long time to figure it out ~ Google's real TMD doesn't have a document. Let's look at an example ~ Paste the code ~ The following are suitable for 2.2 ~ Public Boolean sendmovedouble (){// Point 1 release firstLog. I ("key", "199199 send sendmov

Use the following code to add CCEditBox to the class as an input box. The Code is as follows: // Add input default anchor (0.5, 0.5). modification is useless. Then, the coordinates cannot be layer-based // coordinates. The screen-based coordinates m_tf_input = CCEditBox must be used :: create (CCSizeMake (280*0.5, 60*0.5), CCScale9Sprite: create ("variables"); m_tf_input-> setFontColor (ccWHITE); m_tf_input-> setPlaceHolder (receivagemanager :: sharedreceivagemanager ()-> getLocalizedString ("C

Take the following two points as an example: Abs_mt_touch_major %abs_mt_position_x abs_mt_position_y syn_mt_report // finger 1 %abs_mt_position_x abs_mt_position_y syn_mt_report // finger 2 syn_report That is to say, 11 events need to be reported at a sampling time. The utilization rate is too low and packet loss is very likely to occur. Therefore, the format of encode data is shown in the following table. Bit 31 30 ~ 27 26 ~ 20 19 ~ 10 9 ~ 0 Data Reserved

Android Touch event distribution mechanism learning, androidtouchAndroid event distribution mechanism ViewGroupdispatchTouchEvent returns true dispatchTouchEvent: Activity ACTION_DOWN MyrelativeLayout dispatchTouchEvent: ACTION_DOWN dispatchTouchEvent: Activity ACTION_UP MyrelativeLayout dispatchTouchEvent: ACTION_UP ViewGroup itself consumes this event in dispatchTouchEventDispatchTouc

the initialization of the proportion of * * private float Minitscale; /** * Picture of the largest proportion of * * private float Mmaxscale; /** * Double-click the magnification of the picture * * Private float Mmidscale; /** * Whether is automatically enlarged or reduced * * Private Boolean Isautoscale; -----------------------------------------------/** * The number of previous touch points * * private int mlastpointercount; /** * can drag *