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Raspberry Pi Home for your friends to collect the following several mobile phone apps, with these software, in your playing Raspberry Pi process, will play a powerful effect.Because many of the software is Google Play, and in the celestial world we can not use Google's services, so the software has been uploaded to Baidu network disk, convenient for everyone to download.1. Raspi Check (click to download)This app is the author's favorite, used to detec
In Android, data is exposed and received across apps.
For example, a small project is used to add words in a single word base.
Function: data is exposed and received across apps in different ways.Exposed app: adds, deletes, modifies, and queries words (Word, and Translate;Acceptor app: fuzzy query to obtain the data of the exposed end.
Exposed homepage and layout
policy.Scenario: If the software starts each time to read the skin files on the SD card, the speed will be slower. A good practice is to provide a skin settings interface, the user chose which skin, the skin file extracted to the "/data/data/[package Name]/skin" path, so that does not need to read across the memory, faster, And do not need to go to the zip archive every time to read, do not rely on the SD card files, even if the skin compression package files are deleted is not related.Implemen
Androidmanifest.xml file,Knowing that, it's not very difficult to understand.Below I use two simple answers to the demo, to apply.Demo 1: Use the Queryintentactivities () method to query all Android systems with Action_main and Category_launcherIntent application, after clicking, can launch the application, and plainly is to do a similar home program simple launcher.Demo 2: Get the app through the Getinstalledapplications () method, then filter it, f
{@DatabaseField (id=true) PrivateInteger ID; @DatabaseField (ColumnName= "Name") PrivateString name; PublicPerson () {} PublicPerson (String name) { This. name=name; } Public voidSetUid (intuid) { This. ID =uid; } PublicInteger Getuid () {returnID; } PublicString GetName () {returnname; } Public voidsetName (String name) { This. Name =name; } @Override PublicString toString () {returnname; }}The rule we use is to add some attributes to the fields that need to be m
In general, there are 8 common Android design patterns: Singleton, factory, observer, Agent, command, adapter, composition, visitor.Singleton mode: In order to make the system only one call object, the disadvantage is that the singleton makes the other program rely on it excessively, and the different singleton runs in the different process, makes the maintenance difficult;Factory mode: The production of some fixed things, such as abstract class, the
appearance of the CardView:
Use the Card_view:cardcornerradius property to set the radius of the fillet in the layout file.Use the Cardview.setradius method to set the radius of the fillet in Java code.Sets the background color of the card, using the card_view:cardbackgroundcolor property.
Below is an example of a CardView included in an XML layout file: Card example DiagramCard example DiagramStrumRecyclerview can be seen through the above. It's a lot like the ListView we used t
also includes the interests of users, to their own reputation will also cause a certain harm! Looking back, let's guess how my app was planted with malicious ads at the beginning of the paragraph. Personally, it is to use the above method to decompile, the already written and generated Smali file into my package, and then in the manifest file configuration, and modify the package name, and finally RePack (to get this result is based on, I have two times packaged apk and another anti-compilation
Android share content to other applications, call System dialog or Actionbar pop-up windows are not too free, limited too much, here I provide a fully customizable interface, you can pop windows, or directly in the activity or fragment inside the custom interface. Here to show a key class of code, do the encapsulation processing, I write two demo, free source in: http://download.csdn.net/detail/yanzhenjie1003/8565449/** * @author YOLANDA * @Time April
Today in the use of 360 mobile phone assistant, found that it will automatically create a quick start mode, it feels very interesting, so on the Internet Baidu Some methods, try, there is a way is quite good, I use for reference, first save, I also wrote a Test applet.First, add the code in the mainactivity you want to launch the app into, and in the OnCreate () method, plus a method createshortcut ();Then there is the implementation of the method:private void CreateShortcut () {//TODO auto-gene
If the API or APK in the Android system is unable to read or write to the USB device, it may not be possible to add read/write USB permissions, which need to be set as follows:1. In the android.hardware.usb.host.xml file, add the following: name="Android.hardware.usb.host" /> 2. In tablet_core_hardware. Add the following content to the XML file name="Android.hardware.usb.host " > 3. Recompile the system.img, and burn the firmware to restart
packaging), or by some criminals use, the loss is not their own, The company also includes the interests of users, to their own reputation will also cause a certain harm! Looking back, let's guess how my app was planted with malicious ads at the beginning of the paragraph. Personally, it is to use the above method to decompile, the already written and generated Smali file into my package, and then in the manifest file configuration, and modify the package name, and finally RePack (to get this r
CaseLaunches the app when a push message is received after the app exitsMethod:When you hear the message, add the following code: Intent Intent = new Intent (); Intent.setclass (Context.getapplicationcontext (), glaunchactivity.class); Intent.addflags (intent.flag_activity_new_task); Context.getapplicationcontext (). StartActivity (Intent);Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Launch other
pull or sleep state, which is why you should use Alarmmanager or configure attribute stopself () at the end of the service.Recommendation VIII: Other considerationsCheck the status and network status of the battery before making the overall update, and wait for the best state for a large-scale reload operation;Let the user see electricity situation, such as update cycle, background operation;Implementing a low memory footprint UIRecommendation IX: How to find layout display problemsWhen we crea
How does android display a complete desktop icon name (the icon name of some apps is too long), androidapp1. Find the corresponding res resource, modify styles. xml, and setChanged:2. Modify the applyFromShortcutInfo method of BubbleTextView. javaSetCompoundDrawablePadding (int) (grid. folderIconSizePx-grid. iconSizePx)/2f ));In this line of code, the parameter size is adjusted to the appropriate value.
The four ways Android boots are standard,singletop,singletask,singleinstence, respectively.Standard is the most common way to start an activity and is the default way to start. When you start an activity, he goes to the top of the stack at the back of the stack. The system does not control whether the stack has the same activity, in the same way as after-in first-out.Singletop mode is when the activity starts, the system first determines whether the t
(Throwable e) { //显示错误 }}BeamBeam is a fast development framework based on the MVP model. Reference to the nucleus. The example code above is using this (demo code for this framework for easy copying. =). Defines a set of development specifications. and provide the Activity,fragment,presenter,model based on this set of specifications such as parent classes and controls and APIs, etc., complete the application development process a lot of tedious work. And a series of optimizations. See here for
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