What is the function of Android beam?
The Android beam is a new feature based on near-field communications that can share the functionality you're using for other phones. After Android upgrades to 4.1, Android Beam can now share photos and videos between two NFC-enabled Android
Android performance optimization is mainly divided into two points
1, layout optimization
2, memory optimization
Layout optimization
First look at the layout optimization, the system in the rendering UI will consume a lot of resources, so, the layout of the optimization is particularly important
Avoid overdraw
Which is to avoid excessive rendering, excessive rendering will waste more resources, for example, the
The development of Android using the Android-query framework can be fast, much less than the traditional development of Android code to write a lot of, easy to read and other advantages.
Download the document and its example and package address: http://code.google.com/p/android-query/
Here are some of the lessons I l
This article is an example of the Android Open-source approach to customizing the Android shutdown interface. Share to everyone for your reference. Specifically as follows:
In the Android system, a long press power key by default will eject the dialog box to allow you to choose "Flight Mode", "mute", "shutdown" and other functions. As shown in the following illu
Android Toast introduction-android learning journey (), toast-androidToast Introduction
Toast is a very convenient message prompt box that displays a short message prompt on the desktop. There are two features:1. The message does not obtain the focus.2. It will automatically disappear in a period of time.Toast generation steps
1. Call the constructor or the static method makeText () to generate a Toast.2. C
Android notes-Android architecture and android ArchitectureI. Android system architecture
The Android system architecture consists of four layers: Linux kernel layer, system library layer, application framework layer, and application layer.
Figure 1 architecture of the
Tell me what I'm trying to do before I finish this example.
First, modify the "Actionbarsherlock" navigation example. Before I implemented this example, I tried "actionbarsherlock" to modify one of its tab navigation examples, and the modification was successful. But finally found that it is not a actionbar implementation of the tab, can not hide Actionbar, when the Actionbar hide method is invoked, Actionbar is hidden, but the title of the tab page still exists, And in the lower version of
Android Phone Daemon can't close workaround
The problem with Android's back-end is entirely due to the Android broadcast system. In simple terms, when a user installs a program, the system will record the function of the program like the interviewer, when the user is using the mobile phone, the system state changes will produce various events, these events need some program to process, the system will send
Android development, permission acquisition, and android Development Permission
Turn: http://blog.csdn.net/yawinstake/article/details/6748897
Access registration attributes
Android. permission. ACCESS_CHECKIN_PROPERTIES, read or write the permission to register the check-in database Attribute Table
Get error location
Access registration attributes
Android. Permission. access_checkin_properties, read or write the permission to register the check-in database Attribute Table
Get error location
Android. Permission. access_coarse_location, which uses WIFI or mobile base stations to obtain the user's incorrect latitude and longitude information. The positioning accuracy is roughly 30 ~ 1500 meters
Get
[Development Diary of Android in a row from scratch] (13th) -- Analysis of Android controls, and introduction to android
Android controls are derived from android. view. view class, in android. the widget package defines a large n
In the previous article, I showed you how to create a custom original-android.jar that contains both internal APIs and all classes in the hidden APIs.
The next step is to modify the existing Android platform (sdk_dir/platforms/platform-x/Android. Jar ). You can simply replace Android. jar with the original-android.jar created in part 1, but with unlimited use of
Android learning notes ①-Basic installation of android tools, Android
Android has been out for a long time, and there are a lot of online tutorials. If you are afraid of forgetting it later, you can learn the knowledge shared by the online experts and record it. If you can help others, that's better!
In view of the cur
Android notes-data storage in Android (3), android notes
The Android system integrates a lightweight database:SQLiteTherefore, Android supports databases very well and every application can use it conveniently. As an embedded database engine, SQLite is applicable to the acce
Step three, download and install ANDROIDSDKIn the first two steps, we have configured the JDK variable environment and installed Eclipse, and after these two steps, the Java development environment is ready, if we just develop a common Java application, then here we are. But if we're going to develop an Android app through Eclipse, we'll also need to download the Android SDK (software development Kit) and i
Introduction to the basic components of the android-Android Application (5): four main components of androidActivity
Activity is the most basic module. We become an activity. An activity is usually a single screen. Every activity is implemented as an independent class and inherits the base class of the activity. Display the user's view in the implementation class of the activity and process the event.
In
•
Android: theme = "@ Android: style/theme. Dialog" shows an activity as a dialog box.•
Android: theme = "@ Android: style/theme. notitlebar" does not display the application title bar•
Android: theme = "@ Android: style/theme. no
The number of rows of tablelayout is directly specified by the developer, that is, the number of tablerow objects (or view controls.
The number of columns in tablelayout is equal to the number of columns in tablerow with the maximum number of child controls. For example, if the first tablerow contains two sub-controls, the second tablerow contains three, and the third tablerow contains four, the number of columns of the tablelayout is 4.
Attributes that can be set for tablelayout include gl
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