android 2 2 update

Add fragement After learning about fragement's life cycle and other simple knowledge, I went to the official documentation to learn more about fragement. To add fragement to our UI, I provided two common methods, the first is to use the [HTML] view plainCopy Xmlns: Tools = "http://schemas.android.com/tools"Android: layout_width = "match_parent"Android: layout_height = "match_parent"Tools: context = ". main

Allows your Android app to use multiple themes (Part 2) and androidpart Original article: Supporting multiple themes in your Android app (Part 2)Translator: chaossssProofreader: Mr. SimpleStatus: complete In the first part of this post, we have created a light theme and made initial preparation to support multiple the

Update (2012.11.30 ):Today, Google launched ADT-bundle in Windows to integrate ATD and SDK into eclipse. It is a one-click installation. You do not need to configure it yourself. You can directly go to step 4th. It is similar in the Linux environment. Steps 2-3 can be merged. It is estimated that the Java SDK still needs to be installed. In short, tools are becoming more and more convenient. 1. Install the

affects the page size, figure 2 shows a web page where the web page contains an image of 320 pixels in width, however, the width of viewport is set to 400.Note: If the width of the viewport matches the page width and the screen size of the device does not match the size, the web page will still occupy the entire screen, even if a device screen is set to low-resolution or high-resolution, because Android Br

In addition to the ability to return data results from an Activity, it is also very common to transmit data to an Activity.1. Create a project named PassData.2. Code in main. xml.[Java] view plaincopy Android: layout_width = "fill_parent"Android: layout_height = "fill_parent"Android: orientation = "vertical">

Android hot patch dynamic Repair Technology (2): Practice! CLASS_ISPREVERIFIED problem!I. Preface In the previous blog, we introduced the dex subcontracting principle to introduce Android's hot Patching Technology, and now we will solve two problems.1. How to package the Fixed Bug class into dex2. How to insert external dex into ClassLoader2. Create and test the Demo2.1 directory structure 2.2 source code A

NDK interacts with C/C ++ through Java's Jni. If it doesn't work with Jni, you can check out what I 've previously compiled. I. Build an NDK Development Environment1. Download the right NDK version of the platform. Download URL:Http://developer.android.com/tools/sdk/ndk/index.htmlFor Windows, you no longer need to download Cygwin. You can download NDK directly and decompress it. 2. NDK-contained libc (C library) headers libm (math library) headers JNI

Sync Repo Basic Work Flow Create a new work branch using the Repo Start command Change code Use the git add command to notify Git of changes Commit changes using the git commit command Submit changes to the code review server using the Repo Update command Repo command and Work flow chart ShowFor more information, please refer to http://source.android.com/source/version-control.htmlIf you encounter the followin

Provide alternative resources Almost every application should provide alternative resources to support special device configurations. For example, you should include optional trace resources for different screen resolutions and provide optional string resources for different language environments. At runtime, the Android system detects the current device configuration and loads appropriate resources for the application. To specify a set of optional re

to the build script-you can see that before we execute Android method-we apply Com.android.applica tion plugin! And that ' s the answer! Android Application Plugin extends Project object with Android script block (which is simply a method which accepts Closur E and delegates it to appextension Class1).As you can see, here's an

Android uses Handler to implement message delivery mechanism (2). androidhandler Before starting this article, let's summarize some key points about Handler, logoff, and MessageQueue in the first two articles: 0) before creating a Handler in the thread, you must first call logoff. prepare (), create a local thread variable logoff, and then call logoff. loop () to go to the round robin. 1) After Handler is c

Android cainiao study notes 22 ---- ContentProvider (2) simple use of ContentObserver, contentobserver Currently, application A provides its own data to other applications through ContentProvider. Application B obtains the data provided by application A through ContentResolver and displays it in ListView, application C modifies the data in application A through ContentResolver, or adds new data. The problem

Android Device Manager Vulnerability 2: prevents users from activating the Device Manager, android2 -- In June 2013, Russian security vendor Kaspersky found the most powerful mobile trojan in history-Obad. a. This Trojan exploits an unknown Android Device Manager Vulnerability (ANDROID-9067882). A mobile phone trojan t

registrationlocalbroadcastmanager.registerreceiver (Mbroadcastreceiver, intentfilter);//unregister an in-app broadcast receiverLocalbroadcastmanager.unregisterreceiver (mbroadcastreceiver);//send in-app broadcastsIntent Intent =NewIntent (); intent.setaction (broadcast_action); Localbroadcastmanager.sendbroadcast (Intent) ;　　⑤. Sticky Broadcast (Sticky broadcast)Since it has been invalidated in Android5.0 API 21, it is not recommended and is not summarized here.　　3. Reference Articles3.1. All

Previous articles have briefly explained the basic knowledge of wifi. For more information, see WiFi learning for Android (1 ). On this basis, this article further improves program functions, the main functions are to enable the wireless network card, disable the wireless network card, check the network card status, scan the network, scan the results, connect to wifi, disconnect WiFi, WiFi connection status.Run the following command:Connecting to wifi

Reprinted please indicate the source: http://blog.csdn.net/xiaanming/article/details/9428613 Content sharing between Android applications (1) I have shared with you the applications you have developed and shared the content with other applications. For more information, click here. (1) today, we share content received from other applications. For example, if you develop a social network application, one of your activities can accept what people shar

Package cn. c; import java. io. file; import java. io. IOException; import android. app. activity; import android. media. mediaPlayer; import android. media. mediaPlayer. onCompletionListener; import android. media. mediaPlayer. onErrorListener; import android. media. mediaP

tasks, android Development Network prompts that Because Java GC does not need to be manually released, you must be extremely careful when assigning the GC. Frequent GC operations still affect the performance, during debugging, we can use logcat to view the memory release status. 2. Recycling When accessing an attribute, the efficiency is far lower than that of a fixed variable. If the number of cycles is u