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Android app architecture design 02, androidapp Ii. Try to place the tool class and BaseActivity in the specified position during the opening process, DateFormatBitmapNotificationShared PreferenceEnvironmentDevice III:2.2 Task Management The thread is just a mechanism to ensure that the tasks we want to complete do not run in the UI thread (that is, do not block
Use android studio to detect app Memory leakage [reprinted] And androidapp In Android development, various memory leaks are inevitable. If you do not find and handle the vulnerabilities in time, the larger the memory usage, and various strange crash may occur due to memory leaks, the APP may even crash due to insuffici
Sometimes we need to perform stress tests on a software to check its performance. Manual testing is much less efficient and boring. At this time, a command line tool monkey in android can reduce a lot of repetitive and tedious work for us. The following describes the introduction, features, basic usage, test sample illustration, test stop conditions, and command parameters of the monkey
8 or above, and the Android: minsdkversion value must be more than 8 (Android 2.2 ); Note that when you connect your mobile phone to a PC and enable the large-capacity storage mode, that is, when reading the content of the external memory card, all applications installed on external storage will be killed by the system! If your application exists in the following situations, it is not recommended that the
security risk analysis.10. Risk of activity being hijackedExamples of activity hijacking and protective measures.11, WebView High-risk interface safety detectionBlog address: Android webview Remote code running vulnerability Analysis.12, WebView plaintext storage Password VulnerabilityRefer to the problem with WebView cache password in Android.13. Android HTTPS
shown in the following:The flow in Fiddler is Bytes Sent + Bytes Received, which is two items in the accents circle.5, calculate the sum of this traffic is not to meet the requirements, of course, this is the product standards, such as: 58 of the app's first screen traffic can not exceed 200K. If the requirement is not reached, find out why.IV, grab packet check (JS/CSS) request header cannot take cookiesCookies:1, open fiddler, empty Fiddler Crawl record.2, access to the
precautionsCheck the status of the battery and the network status before the overall update, wait for the best state to carry out large-scale operation;Let the user see electricity situation, such as update cycle, background operation;Recommendation IX: How to find layout display problemsWhen we create a UI for the layout alone, we create an app that abuses memory, and it has a nasty delay in the UI. To achieve a smooth, low-footprint UI, the first s
certificate's password, as shown in the following example: Note: The command succeeds, and the system generates a "2015.keystore" certificate in the current directory (C:\Users\jiangdongguo). 3. Sign the Android app with the Jarsigner tooljarsigner-verbose -keystore 2015.keystore -signedjar2015_signed.apk 2015.apk 2015.keystor E Description:1) Jarsigner is the tool
19 _ use the HanziToPinyin tool class provided by android to convert Chinese characters and splice them. There are many implementation methods for converting Chinese characters into concatenated characters. For example, pinyin4j is a popular Java library that supports conversion between Chinese characters and pinyin. The pinyin output format can be customized (the following blog will detail the usage ). How
Fos=NULL; Try { //files are copied to SD cardFIS =NewFileInputStream (DBFile); FOS=NewFileOutputStream (Environment.getexternalstoragedirectory (). GetAbsolutePath () + "/copy.db"); intLen = 0; byte[] buffer =New byte[2048]; while( -1!= (len=fis.read (buffer))) {fos.write (buffer,0, Len); } fos.flush (); } Catch(Exception e) {e.printstacktrace (); }finally { //Turn off Data flow Try { if(Fos! =NULL) Fos.close (); if(FIS! =NULL) Fis.close (
One, no apk, the app has been installed in the phone or virtual machine1. Mobile phone has installed GT, open can see the package name:2.logcat. Clear Logcat content, use command adb logcat-c. Start Logcat, use the command adb logcat activitymanager:i *:s. Start the program you want to view,2.dumpsys(1) Start the program you want to view;(2) command line input: adb shell dumpsys window w |findstr \ |findstr name=Add: Use adb shell Dumpsys window | fin
; - ActivityAndroid:name= "Grid_bills">Activity> - ServiceAndroid:name= "LocalService"android:exported= "true"android:enabled= "true"/> - + Application> - uses-permissionAndroid:name= "Android.permission.READ_CONTACTS" /> + A at Manifest> Two, only the situation of the APK(1) AAPTUsing the command line AAPT dump Xmltree colabox.apk androidmanifest.xml(2) using ApktoolUse the Anti-compilation tool Apktool, and then o
Monkey is a command-line tool in Android that can be run in the emulator or in the actual device. It sends pseudo-random user event streams (such as key input, touch input, gesture input, etc.) to the system, enabling stress testing of the application under development. Monkey testing is a fast and effective method to test the stability and robustness of the software. Monkey Test Parameter recommendati
Android 5.0, Code Lollipop, the source finally released on December 3, 2014, a large number of domestic manufacturers follow-up. The biggest change is the default use of ART (Android Runtime), replacing the previous Dalvik virtual machine, presenting the Material Design interface style. Previously released app may need to make some changes, temporarily collected
, and the port, fiddler the default port is 8888,ip option set to "DHCP"Click Save, at this time the mobile phone is configured successfully, open fiddler, use open NetEase News client.At this point you can see the fiddler crawl of the NetEase app sent and received relevant data packets.OK, on the left is all of our sessions, I randomly selected a session, the session is the image type, view the content of the session, is our NetEase news headlines on
FinishAfter the setup, click on the tool palette in the lower right corner to select the TButtonDrag the TButton onto the canvas and pull it to the size you likeThen, on the button, go to Code Editor two and enter Button1.Text: = ' Hello world ';This program indicates that the button text (text) is changed to ' Hello World ' after clicking (click).In the end, we press F9 to perform the status of the Android
============ Problem Description ============I used to do a period of time the development of Android application layer, now to a new company, do the native application development, their own currently just download Android source code, compiled a bit, but specifically how to develop, with what tools or not very clear, have done the native application development, recommend some introductory information, Or
chromeos-apkis a tool that can speak Android APK program packaged into chrome can run plug-ins. GitHub's address is: https://github.com/vladikoff/chromeos-apkHow to use: Installing NPM Install Chromeos-apk-g Convert chromeos-apk chromeTo load the generated plugin via developer mode Loading will now be unsuccessful because Chrome lacks ARC a library, so the https://bitbuc
information can be. This technology benefits from the technology described earlier: Android in the root-free hook application of its own system services, the technical principle is very simple, is the use of dynamic Agent technology + reflection mechanism. This technology can be used for this automatic blasting function, we just need to add this hook code at the entrance of the program. This technique has been practiced in the previous article: a new
advantage of, you will not be able to use other application resources efficiently by loading and resizing. 8 : Using Hierarchy Viewer Tools Hierarchy Viewer tools can help you debug your application layout. It also provides valuable analysis information to understand how much time it takes to measure, render, and draw each view control within a layout. It is easy to solve the problem only if you find the root of the problem accurately. 9 : Using layoutopt Tools layoutopt
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