android data eraser apk

Android assigns a separate user space to each APK process. The userid in its manifest corresponds to a Linux User (the Android system is based on Linux. therefore, mutual access to data between different APK (users) is disabled by default. However, it also provides two types

Android assigns a separate user space to each APK process, and the userid in its manifest corresponds to a Linux user (the Android system is based on Linux). Therefore, it is forbidden to access data between different apk (users) by default. But it also provides the form of

Welcome to the arena of RULES of survival! This was a Battle Royale mobile game that had favored by the million of players worldwide.You'll be one off of unarmed players who get air-dropped to a vast, deserted island. The last one survives.attention! Your safe zone is diminishing. You is racing against poison gas spreading, enemies shooting, and ultimately death chasing.Collect weapons scattered, arm yourself to the teeth, wield your wisdom and tactics, and loot gear from the unlucky.You can eit

optimize it:D:\>zipalign-v 4 demo_signed.apk final.apkAs above, Zipalign is able to align uncompressed data in APK files on 4-byte boundaries (4 bytes is a good performance value), this allows the Android system to read the file using the mmap (check the function's purpose) function to get higher performance on the Read resource ，Ps:1. Alignment on a 4-byte boun

Sqlite is generally used in this way, that is, creating an empty database in the program, and then performing a series of operations such as adding, deleting, modifying, and querying, the development of small applications is easier to meet the requirements, but some large applications contain a large amount of data. If you insert data one by one in the program, first, it is time-consuming. Second, the user

();} inputStream. close ();} System. out. println ("downloaded"); // send a Message to handler to change the text attribute of the button. message = handler. obtainMessage (); message. what = 1; handler. sendMessage (message);} catch (MalformedURLException e) {e. printStackTrace ();} catch (IOException e) {e. printStackTrace ();}}}). start (); return file ;} Here is how to install APK: /*** Install APK *

analyze app performance, and if you want to do performance optimizations, you can try using nimbledroid.View detailed method time-consumingSpecific use of the method, please crossing network:https://nimbledroid.com/Note, however, that you should not upload any unpublished products .ClasssharkClassshark is a browsing tool that looks at Android executable files (APK) and currently has two

be modified. 3. zipalign Optimization Using zipalign to optimize your APK file can reduce the usage of running Memory RAM. If you have downloaded Android SDK tools, the file is located in the Android-SDK-Windows \ tools directory. Command Format Zipalign.exe-V 4 your APK File Parameter V: Detailed output. Parameter 4

First, prefaceToday, finally, the final article of the break series, the two previous articles were:First article: How to use eclipse Dynamic debugging Smali source codeSecond article: How to use Ida to dynamically debug so filesNow to say is the last article, how to deal with some of the Android APK security protection, in the previous two cracked articles, we can see one is for the Java layer of the crack

I've recently seen Lao Luo's blog on the analysis of Android resource management and APK packaging process, referencing other materials, doing some tidying up, leaving out tedious packaging details and data structures, and outlining the entire process of apk packaging as a whole.Process Overview:1, packaging resource f

This article mainly explains the contents of the APK digital signature, and introduces the way of the APK debug mode and the digital signature in the release mode. This article transferred from: http://www.jizhuomi.com/android/environment/293.html 1. What is a digital signature A digital signature is a sign for your program to be your own, and when someone sees t

The generated Android application APK file is best optimized because the essence of the APK package is a zip-compressed document that optimizes the orderly arrangement of uncompressed data in the package, reducing the memory consumption at the time the application runs. We can use the Zipalign tool for

After a busy week and finally having time to write something, we continue to introduce another way for Android APK to prevent anti-compilation technology. The first two we talked about the shell technology and the runtime to modify the bytecode, if there is not clear can see my blog in the first two of the introduction of these two technologies. Next we will introduce another easy-to-use technology that pre

After a busy week and finally having time to write something, we continue to introduce another way for Android APK to prevent anti-compilation technology. Top two we talked about Shell technology (http://my.oschina.net/u/2323218/blog/393372) and runtime modification bytecode (http://my.oschina.net/u/2323218/blog/396203) , if there is something you can see in the first two articles of my blog about both of t

signature, which is very convenient and recommended. The steps are as follows:Step 1: export. Step 2: Create the keystore, enter the location and password for the keystore export, and remember the password. It will be used in the next use existing keystore. Step 3: Enter the keystore information, password of some APK files, expiration time, and organization unit information. Step 4: generate an APK fi

After a busy week and finally having time to write something, we continue to introduce another way for Android APK to prevent anti-compilation technology. Top two we talked about Shell technology (http://my.oschina.net/u/2323218/blog/393372) and runtime modification bytecode (http://my.oschina.net/u/2323218/blog/396203) , if there is something you can see in the first two articles of my blog about both of t

still function.• You can use standard tools--keytool and Jarsigner to generate key and sign apk files.• Once the application is signed, be sure to use the Zipalign tool to optimize the final APK package.Debug Key and Release keyWhen you debug an application, the Android SDK tool automatically signs the application. Both the ADT plug-in and the ant compilation to

Android project package apk and apk decompile, androidapkI. general principles and disadvantages of Project Packaging (1) develop a simple project and release it as an APK file. If we do not use the signature method, find * in the bin directory *. the apk file is very conven

B's menifest file to declare the use of the appropriate permissions, App B sends the message, a is not received.In addition, you can also add android:protectionlevel= "signature" When declaring permissions in App B's Menifest file, specifying that app B can only receive messages sent by apps signed with the same certificate.The mutual invocation of data between the two Android apps is an issue that we ofte

I. GENERAL principles and drawbacks of project packaging(1) To develop a simple project, when published as an apk file, if we do not use the signature method, directly in the bin directory to find the *.apk file, it is convenient, but our users in use, it may be used by other programs to cover the installation, the specific explanation is as follows:(2) We create a new project test directory structure as fo