android application development for dummies

Android Application Development generally separates the UI and data into the application side (focusing on the performance of the entire application) and the UI side (mainly interface display) data logic side (mainly the API encapsulation for interaction with the background)

Android Application Development: Genymotion cannot be started After the Virtual Box, Genymotion, and Genymotion plug-ins on Android Studio are installed, the Genymotion Android simulator cannot be connected to the Virtual Box, this is often caused by virtual network configu

drive Internal storage space Internal storage SD card: The equivalent of a computer's mobile hard drive External storage space External storage SD card StatusRemove: No plug-in SD card UNMOUNT:SD card is plugged in, but no Mount CHECKING:SD card is being traversed by the system MOUNTED:SDcard can read and write mounted read ONLY:SD card is available, but read onlyGet the remaining capacity of the SD card Chunk size Total number of blocks Number of ava

Simple concepts are the goals pursued by many people, but in actual situations, everyone prefers comparison. They want to make their own things more beautiful. Forgetting simple is the concept of beauty. Simple makes more sense in Android products. First, there are a large number of Android models with different resolutions. A game we make can be played on a large number of machines, with various resolution

First an Android project, then compile and package, compile the. java file into. Class,.class compiled as. Dex, package all the files as an apk, compile the code, and not compile the resources.The. ARSC in the. APK is the index of the resource, which can be indexed when the resource is more than one.signing-signature, the system detects whether the signature is the same, in addition to verifying that the package name is consistent before the

-rav1.0g.imgadb shell flash_image recovery/sdcard/recovery-rav1.0g.img reboot　　　　　　re-mount file system: ADB remountRestart your phone: adb reboot　　　　Manipulating databases with ADB directivesLearn about SQLite data types first　　　　　　　　　　　　　　　　　　Perform ADB shell operations into your Android operating systemExecute the following command: Sqlite3 settings.db　　　　　　　　　　　Get help:.　　　　　　　　　　　Create a tableAdd data　　　　　　　　　　Querying data　　　　　　　　　　modifying

(holder);}else{Holder= (Viewholder) Convertview.gettag ();}Holder.tv.setText (Datalist.get (position));Holder.btn.setOnClickListener (New Onclicklistener () {@Overridepublic void OnClick (View v) {Here we use the callback method to manipulate in the activityMtestimpl.onitemdo (position);}});return convertview;}public class Viewholder {Private TextView TV;Private Button btn;}}----------defined interface--------------------------------Public interface Itestimpl {void Onitemdo (int position);}But

-4ded32aebe63ec39c806e661b9a56f1d.jar! STACK 0Java.lang.IllegalStateException:Could not remove D:\wo_2015_2_26\SmokerTreasure\bin\dexedLibs\ Sharesdk-core-2.5.7-4ded32aebe63ec39c806e661b9a56f1d.jarAt org.tigris.subversion.subclipse.core.resourceslisteners.revertresourcemanager$ Revertworkspacejob.revertresources (revertresourcemanager.java:65)At org.tigris.subversion.subclipse.core.resourceslisteners.revertresourcemanager$ Revertworkspacejob.runinworkspace (revertresourcemanager.java:85)At Org.e

will be crash, it is recommended to find the corresponding problem based on log SDK, and then go to the open platform to see the confusion considerations, the need to keep the class protection good. And so on, it's OK to configure all third-party SDKs.More references via ant script, compiling and packaging Android projectAndroid Proguard DetailedAnt Use full summaryjason0539Blog: http://blog.csdn.net/jason0539 (reprint please indicate the source)Swee

memory is too small, garbage collection will be performed frequently, and the collection will be paused for a short period of time. Change -Xms128m -Xmx512m -XX: maxpermsize = 256 m Now create a Java project through eclipse File> New> JAVA Project Enter project name Select "Create project from existing source" and select the root path of the android source code in browse. Note that it is the same as the path because. classpath is copied to the root d

"Android:layout_gravity= "Center_vertical"style= "Android:attr/progressbarstylesmalltitle" >2.Java codeThis.requestwindowfeature (window.feature_indeterminate_progress);Setcontentview (R.layout.main);GetWindow (). Setfeatureint (window.feature_indeterminate_progress, r.layout.progress);Setprogressbarindeterminatevisibility (TRUE);3.feature_left_icon detailedDisplay icon on the leftFigure 5Implementation codeThis.requestwindowfeature (Window.feature_left_icon);Setcontentview (R.layout.main);GetWi

1. Download the corresponding JDK, SDKhttp://www.androiddevtools.cn/2. When you create the Android app emulator run, it will happen.The solution is:Launch Android SDK Manager, open the main interface, select "tools", "options...", pop up the "Android SDK manager-settings" window;在『Android SDK Manager - Settings』窗口中，在「H

In the next few articles, I will learn about JNI development. I will mainly learn about JNI details and implement the examples through the Android platform. First, a classic instance will bring you-HelloWorld !! HelloWorld is classic. Once you think of learning programming, you think of HelloWorld that we wrote together in years. HelloWorld is used to explain the JNI de