how to restart system ui in android

init_parse_config_file method to parse the init. rc file and then start the specified commands and services in init. rc. Int main (int argc, char ** argv) {// Code omitted // create the system folder mkdir ("/dev", 0755); mkdir ("/proc ", 0755); mkdir ("/sys", 0755); // Code omitted // initialize the kernel open_devnull_stdio (); klog_init (); property_init (); process_kernel_cmdline (); // Code omitted // parse init. rc file init_parse_config_file (

= "Appbasetheme">specific to a particular api-level can go.style> Customizing a style to an application use the Parent property to specify the style of the current style, either by referencing the system style or by referring to a user-defined style - stylename= "Myapptheme"Parent= "Apptheme">style> Customizing a style for the current interface activity, the style defined in acvitity, which is valid for all controls in the interface - styl

); Super.handlemessage (msg); } }3. Modify the text of the main thread through Message Queuing: classMyHandler extends handler{@Override Public voidhandlemessage (Message msg) {System. out. println ("This is a message from MyHandler:"+Thread.CurrentThread (). GetName ()); String s=(String) msg.obj; Textview.settext (s); Super.handlemessage (msg); }} classButtonlistener implements view.onclicklistener{@Override Public voidOnClic

Android UI adaptation SummaryHow does the system determine the optimal resource? Obtain the current basic configuration information (language, landscape, screen density, screen size, etc.) of the mobile phone. Based on the configuration information, exclude the resource directories that conflict with the configuration information in the apk package, if the

Due to the fragmentation of Android, for different screen sizes, it is best to do the following:1, can use the relative layout of the absolute layout, as far as possible, the use of heavy, weight settings, relative layout and linear layout with the same conditions, priority to select the linear layout2, in the Res directory to create a different layout folder, such as layout-640x360,layout-800x480, All layout files are written to R.java after compilat

Reprint Please indicate the source: http://blog.csdn.net/llew2011/article/details/51598682 We usually meet some wonderful needs in the development, In order to achieve these needs, we often racked our brains and sometimes the food is not fragrant, a bit exaggerated (*^__^*) ... One of my deepest impressions is the need to show some words in bold text. At that time a lot of effort, but fortunately, the problem is finally resolved, interested in child boots can look at:

(R.id.button1); BTN2=(Button) Findviewbyid (R.id.button2); Btn1.setonclicklistener (NewOnclicklistener () { Public voidOnClick (View v) {Intent Intent=NewIntent (mainactivity. This, Loginactivity.class); //Packaging of IntentPendingintent pi=pendingintent.getactivity (mainactivity. This, 0, intent, 0); //Create a notificationNotification nf=NewNotification.builder (mainactivity. This) //whether to close automatically. Setautocancel (true) //

animation) //ca.endprogress = 0.5; //Animation timeCa. Duration=1;//2. Add Core animations[ Self. IconView. LayerADDANIMATION:CA Forkey:Nil];}//Previous- (ibaction) Prebtnclick: (ID) Sender { Self. Index--;if( Self. Index1) { Self. Index=7; }NSString*imagename = [NSStringstringwithformat:@"%d.jpg", Self. Index];UIImage*newimage = [UIImageImagenamed:imagename]; Self. IconView. Image= NewImage;//1. Create a core animationCatransition *ca = [catransition animation];//1.1 Tell the

( rquest1animation); Initmain (); layoutmain.startanimation (rquest2animation); break;}}; public void Initanimation () {//Get rotation center displaymetrics DM = new Displaymetrics ();d m =Getresources (). Getdisplaymetrics () Mcenterx = Dm.widthpixels/2;mcentery = dm.heightpixels/2;//defines the direction of rotation int duration = 10 00;lquest1animation = new Rotate3d (0, -90, Mcenterx, mcentery);//The direction of rotation of the next page (from 0 degrees to 90, The reference

of the init.rc, to create the directory required for the file system, as well as to these directories plus permissions, copy the relevant programs, wait for the operation, the most important, a file system to run the need to load these services can be implemented. As for how to load, the principle I will not say, a long story, recommend you can search init.rc,init.c such words can understand.What we're tal

Since we are going to use Arrayadapter, let's look at the adapter relationship in the system first:In practice the use of high frequency is: Simpleadapter, Arrayadapter, BaseadapterBaseadapter: is an abstract class that implements a more versatile approach, but is highly flexibleArrayadapter: Generic operation is supported, it is relatively simple to display only the same type of dataSimpleadapter: There's a better flexibility to define your own UIAbo

there is such a demand, you need to draw a dashboard, and draw the scale of the dashboard we can use trigonometric sin cos to calculate the corresponding offset angle, of course, this is easy for the mathematical Couba, the General people need to turn the trigonometric function formula, so Google engineers, For us to implement the translation and rotation of the API, encountered similar to the dashboard effect is, only need to rotate the current canvas to achieve the corresponding effect, savin

and put into junit testing. There is a call Youwave_android simulator, the use of very fast, if there is no real machine in the case can use it to transition, nothing can also download more Android software, learn how others ' system is done, at least to improve the UI aesthetic. Some people propose to develop on the Linux platform, if never used the best not to

driver, and camera driver. The libraries layer includes a variety of dynamic libraries (2D, 3D image engines, embedded databases, Network Browser cores, etc.), Android runtime libraries, and dalvik virtual machines (dalvik virtual machines used before Android4.4, (art is used after 4.4). From the programming language perspective, this layer is mainly written in c/c ++, so it can be said that this layer is the native layer. The application framework l

listener btnOpen to each button. setOnClickListener (this); btnHide. setO NClickListener (this); btnExit. setOnClickListener (this) ;}@ Override public void onClick (View v) {switch (v. getId () {case R. id. btnOpen: // create an Intent and set intent Intent = new Intent (MainActivity. this, OtherActivity. class); if (ARR_INT> = arrStr. length) ARR_INT = 0; // send data intent. putExtra ("info", arrStr [ARR_INT ++]); // start another Activity this. startActivity (intent); break; case R. id. btn

threads. The Chromium system abstracts a message loop into a MessageLoop class, specifying that each thread can only run one MessageLoop instance at most. MessageLoop provides the PostTask series method to allow new asynchronous tasks to be added to the task queue. When MessageLoop finds that a new task arrives, it will round-robin its task queue and execute the task in the "first-in-first-out" mode until it receives the MessageLoop: Quit message, th

. MessageLoop provides the PostTask series method to allow new asynchronous tasks to be added to the task queue. When MessageLoop finds that a new task arrives, it will round-robin its task queue and execute the task in the "first-in-first-out" mode until it receives the MessageLoop: Quit message, the message loop will exit. Chromium divides MessageLoop into several different types based on the asynchronous events to be processed: TYPE_DEFAULT: The default message loop can only process Timer an

Handler) { Mservice = Service ; Mhandler = handler; } 2.frameworks/base/core/java/android/os/ipowermanager.aidl Interface Ipowermanager { ... void reboot (String reason); ... } 3.frameworks/base/services/java/com/android/server/powermanagerservice.java /** * Reboot The device immediately, passing ' reason ' (May is null) * to the Underl Ying __reboot

number grew to 550,000, while Android devices had a total of 135 million users, and Android had become the highest-volume system in the smartphone world.On August 2, 2011, Android phones have accounted for 48% of the global smartphone market and dominated the Asia-Pacific market, ending Symbian's dominance and ranking

PackageYc.example.activityex;Importandroid.app.Activity;Importandroid.content.Intent;ImportAndroid.os.Bundle;ImportAndroid.widget.TextView; Public classOtheractivityextendsActivity {PrivateTextView TV; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); TV=NewTextView ( This); Setcontentview (TV); //get the current Activity intentIntent Intent = This. Getintent (); //Get DataString info = Intent.getstringextra ("info"); //set the acquired da