android gallery app apk

:–files which is placed in the assets folder–property files containing configuration data–images which can be replaced–styling Information Resourcesand similar.My personal use case is:I had created an Android application using SAP Netweaver Gateway Productivity Accelerator.I had to deliver the application to my users as. apk file.But there is the requirement that they wanted to modify the ready application

1: When importing Android Studio project, there will always be a red fork in the run, where you can click on the edit configurations shown above to see the error warning message in the lower right corner. :2: Error Logged:The APK for your currently selected variant (APP-RELEASE-UNSIGNED.APK) was not signed. Specity A signing configuration for this variant (releas

1. Send messages through the Intent message mechanism and call the system application to install/uninstall the apk.(1) Call the system installation application to enable the system to automatically install the apk String fileName = "/data/com. zlc. ipanel. operate/FileOperate.apk ";Uri uri = Uri. fromFile (new File (fileName ));Intent intent = new Intent (Intent. ACTION_VIEW );Intent. setDataAndType (uri, "

to sign the APK, but using Gradle is easier. Such as:You may not want to tell the password hard-coded to the build file, you can put them in the Gradle.properties file or set it on the command line.In the DSL document, the Signingconfigs block is delegated to the Signingconfig class, which has four commonly used properties:Keyalias: This value is used when Keytool signs a specific keyKeypassword: The password of the key used in the signing processSto

check the integrity of applications. We can use jni technology to verify the integrity of applications, or use digital signatures to detect the integrity of applications. We know that after an apk file is decompiled and cracked and the code logic is modified, we need to use the jarsigner tool to re-sign the apk to run the modified apk file. The signature of an a

first step to download something and put it in the appropriate folder. 3. To the anti-compilation of the apk file suffix to zip and unzip, get the Classes.dex, it is the Java file compilation and then through the DX tool packaging, the classes.dex copied to the 2nd step extracted by theDex2jar.batThe folder where you are located. 4. Position the command line toDex2jar.batin the folder where you run the command:Dex2jar.bat Classes.dexBuild under the s

{}, Landroid/os/debug;->waitfordebugger () VThis is Smali syntax, in fact, the corresponding Java code is:Android.os.Debug.waitForDebugger ();Here the Java language translated into Smali grammar, not difficult, online has Smali syntax parsing, here do not want to explain.Step three: Compile the APK and sign the installation againJava-jar Apktool_2.0.0rc4.jar b-d Out-o debug.apkor use Apktool to compile backAfter compiling, will get debug.apk file, bu

The behavior of the gallery displayed on the JB and JB2 versions is that the horizontal screen displays a full screen, and the vertical screen displays status bar. How to make the vertical screen not show status bar. Modify alps/packages/apps/gallery2/src/com/android/gallery3d/app/ Togglestatusbarbyorientation () method in Abstractgalleryactivity.java: Cop

certificate is valid for 20,000 days, meaning that the certificate will expire after 20,000 daysWhen you execute the above command to generate a digital certificate file, you are prompted to enter some information, including the certificate's password, as shown in the following example:　　2 "sign Android app with Jarsigner toolJarsigner-verbose-keystore Liaguangyang.keystore-signedjar notepad_signed.apk not

the software, or the system will find that the new version of the signing certificate and the old version of the signing certificate is inconsistent, does not allow the new version to be installed successfully.　　2) App modularity . The Android system allows the same app to run in the same process, and if it's running in the same process, they're equivalent to th

Learn and develop Android apps for a while, write a blog today summarizing Android apk file decompile. We know that after Android app development is complete, we will eventually package the app into an

Learn and develop Android apps for a while, write a blog today summarizing Android apk file decompile. We know that after Android app development is complete, we will eventually package the app into an

so that the Anti-compilation tool (Jd-gui) cannot decompile and query your Java code. Jd-gui Bug actually quite a lot of, many special code block or field set can let it crash cannot decompile source code.Like what:private static final char[] WJ = "0123456789abcdef". ToCharArray ();public static String IMSI = "204046330839890";public static String p = "0";public static string keyword = "phone";p ublic static string Tranlatekeyword = "%e7%94%b5%e8%af%9d";By adding the above fields to each class,

: Google modifies the permission control mechanism whose protection Level is System on KK.If the App uses the System-Level permission, you need to reset it under/system/priv-app (originally in/system/app ).For example:In this case, the App must declare WRITE_MEDIA_STORAGE permission in AndroidManifest. xml to obtain th

the APK file to be aligned on a 4-byte boundary (4 bytes is a well-performing value) so that the Android system can read the file using the Mmap () function (see the purpose of the function itself) to get higher performance on read resources ，Ps:1. Alignment on a 4-byte boundary means that, in general, the compiler bar 4 bytes are read as a unit, so that the CPU can access the variable efficiently and quic

-keystore demo.keystore */D:\>jarsigner -verbose -keystore demo.keystore -signedjar demo_signed.apk demo.apk demo.keystore/*说明：-verbose 输出签名的详细信息-keystore demo.keystore 密钥库位置-signedjar demor_signed.apk demo.apk demo.keystore 正式签名，三个参数中依次为签名后产生的文件demo_signed，要签名的文件demo.apk和密钥库demo.keystore.*/ Note: The demo.apk in the bin directory of the Android project is signed by default with the debug user, so you cannot use the above procedure to sign the

This article is the tenth article of the Android Core Development series, the previous stage, we focused on learning and analyzing the Android system startup process, then, from this article, we are ready to introduce how to add, modify, delete system-level app from Android source. As a starting point, let's start with

on Android project, Android Tools-->export signed application package ...(2) If the system does not have a digital certificate, you can select "Create new KeyStore" to fill in the format of the digital certificate storage path and password.(3) Fill out the details of the digital certificate.(4) Specify the storage path of the APK installation package after the s

can use code rendering instead of picture resources; The reuse of resource files, such as two pages background image of the same color, you can re-use background images, set different color; How to optimize local code files: Limit the number of CPU architectures supported by your app, and allow your app to support Armabi and x86 architectures in the current

After knowing the pre-knowledge points of class loading in Android, look at the detailed implementation of Dexclassloader in AndroidThe detailed loading process is as follows:The host program will load the APK "1" into the file system, such as SD card, and then run the activity in the APK with an activity called proxy.About dynamically loading APS. Theoretically