android studio 2 2

Android multithreading Analysis 2: Implementation of Thread, androidthreadAndroid multi-Thread Analysis II: Thread implementation Luo chaohui (http://www.cnblogs.com/kesalin/) CC license, reproduced please indicate the source In the previous article "Android multi-Thread analysis: Using Thread to asynchronously download images", we demonstrated how to use Thread

com_simon_helloworld.cpp file and enter the following content in the file: #include Note the following differences between this example and one of the preceding Android JNI development basics: 1. C and C ++ implement shared libraries to call different JNI APIs. As mentioned above, the android system JNI provides two different APIs for C and C ++. Compare the newstringutf and getenv functions, and you wi

we want to use is a very simple geometry, and the vector image occupies a very small amount of storage space.There is also a practical icon making tool website for Android Asset Studio. You can choose to make the app icon or the System icon, and after adjusting the parameters, you can download the icon to use locally.This article is part of a series of documents from design to implementation-hands-on

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

We already know that an activity calls another activity by using an Intent object. To allow other activities to respond, you also need to configure the 1. Create a project and create a class: MyBrowserActivity. java. Create an xml file brwoser. xml in res/layout.2. AndroidManifest. xmlPackage = "net. learn2develop. Intents"Android: versionCode = "1"Android: versi

Xirihanlin 2011.06.03 Original path: http://devmaze.wordpress.com/2011/01/18/using-com-android-internal-part-2-hacking-around/ In the previous article, I explained why it is difficult for us to use internal and hidden APIs without reflection. This is because Android. jar does not contain these APIs, so no one can reference these classes during compilation. This a

2. Use JNI to add service access interfaces at the application framework layer The application cannot directly access the Hal layer. The JNI layer needs to access the Hal module and provide APIs. You can directly provide interfaces, but it is recommended that you provide access through services. Let's first look at how JNI accessed the Hal module. Go to the frameworks/base/service/JNI directory under the source code root directory and create com_andro

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

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

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

is faster and some errors can be avoided. -- However, many changes need to be compared with resource files, so you can also extract a version with resource files for reference. 2) Compile. APK (specify the directory from the phone)Apktool B-f phone phone2.apk 3) Add a signature to phone2.apkJava-jar signapk. Jar platform. x509.pem platform. pk8 phone2.apk phone2_signed.apk Note that the signature files used are platform. x509.pem and platform. pk8, r

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

The menu of the Android mobile phone is elegant and elegant, and its programming implementation is concise and bright. If anyone has used QT interface programming, then the android menu programming will smile immediately, Option menu:Take a look at the following code: Import Android. App. activity; Import Android. OS.

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 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