The version number is set to 2 in Mainfest.xml today (the code gets the version number is invalid)Android:versioncode= "2"Android:versionname= "2.0"Actually through the code:Packagemanager manager = Mcontext.getpackagemanager (); = Manager.getpackageinfo (Mcontext.getpackagename (), 0); = info.versionname; = Info.versioncode;The detected version number is still 1, strange!!Suddenly found in mainfest.xml there is a s
My android learning experience 8 and android learning experience 8
Android signature package apk File
1. Right-click the project to be packaged to open Android Tools, open Export
, in the end is the director of AH!!!! ... ....... ....after a while, the lady came back again. and brought ICBC's answer:'ABC People said, here is ABC, only farmers can take money, I am urban population, ICBC said, we here is the public line, only the male to take, mother's not!!!!, said I was a cheap, to the CCB to take money'class="Swiper-scrollbar">Android File codeclass="Wrap Swiper-container"Id="Conbar"> class="Swiper-wrapper"> class="swiper-sli
Have you ever encountered a good app on your mobile phone, but you don't know how to share it with friends? As a programmer, I encountered such a simple problem. I must find a solution. After google and Baidu, I found that all installed apps on android would be backed up, they are stored in three locations:
1. Software signed by the system:/system/app
2. Non-system signature software installed on the memory:/data/app
3. Install the non-system signatur
Test more than 900 packages in 1 minutesThe key idea is to read the file,Python Quick Pack Script:1 #!/usr/bin/env python2 3 ImportZipFile4 5prefix ='Channel_'6Channel ='JYB'7 8 Try:9zipped = ZipFile. ZipFile ('a.apk','a', ZipFile. zip_deflated)TenEmpty_channel_file ="Meta-inf/{0}{1}". Format (prefix, channel) One PrintEmpty_channel_file AZipped.write ('ABC', Empty_channel_file) - zipped.close () - exce
Haven't updated the blog for a long time, recently saw the company's project to get the size of the app itself or from the server side back, still can't use. So xxx did not say. Here's how to get the size of your app.Note: Here just get the size of your apk.The first thing we need is permission:And then of course it's getting packagemanager:Packagemanager Mpackagemanager=getpackagemanager (); try {PackageInfo pinfo=mpackagemanager.getpackageinfo ( Getpackagename (),
Widgetsample project, first download a picture of the dial in the drawable directory and then create the Analogclock_ in the app/main/res/layout/directory Layout.xml file, where the following code snippet is populated:XML version= "1.0" encoding= "Utf-8"?>Relativelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent
; 0) {cursor.movetofirst ();
try {//Solve the Chinese garbled problem byte test[] = Cursor.getblob (0);
String strtest = new string (Test, "utf-8"). Trim ();
See if the output information is correct System.out.println (strtest);
catch (Unsupportedencodingexception e) {//TODO auto-generated catch block E.printstacktrace ();
} cursor.close ();
}
}
Wh
Original: Android 0 Basics 60th: Calendar view CalendarView and timer chronometerThe previous issue studied the AnalogClock, DigitalClock, and Textclock clock components, and this issue continues to learn the Calendar view CalendarView and timer chronometer.First, CalendarViewThe Calendar view (CalendarView) can be used to display and select dates, and users can select either a date or touch to scroll throu
icon for the letter A is displayed.Continue to use the Listviewsample module of the Widgetsample project to create a custom_arrayadapter_layout.xml file in the app/main/res/layout/directory populated with the following code snippet:XML version= "1.0" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"android:orientation= "v
The previous issue studied the AnalogClock, DigitalClock, and Textclock clock components, and this issue continues to learn the Calendar view CalendarView and timer chronometer.First, CalendarViewThe Calendar view (CalendarView) can be used to display and select dates, and users can select either a date or touch to scroll through the calendar. If you want to monitor the date change for that component, you can call CalendarView's Setondatechangelistener () method to add an event listener for this
to create a new Advancedviewsample module with reference to the creation method of the first knowledge ListView.This sample user interface is very simple, and the code for the new program's layout file Activity_main.xml is as follows:XML version= "1.0" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width=
gridview_layout.xml file in the app/main/res/layout/directory populated with the following code snippet:XML version= "1.0" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"android:orientation= "vertical"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"android:gravity= "Center_horizontal"> Define
In the previous period, the checkbox and RadioButton have been studied, so the other two sub-controls ToggleButton and switch of the button in this issue are equally important in development.First, ToggleButtonThe ToggleButton (switch button) is a relatively simple component of the Android system, a button with checked and unchecked double states, and requires different display text for different states. A Oncheckedchange event is triggered when the u
an XML file for reuse at the next installation.ThreeIn fact, every time the Android phone system starts, it will use the PMS to install all the APK in the Android system once, altogether 4 steps, as follows:The steps 3rd, 4th, and the individual installation of an app are the same. Let's analyze the first two steps:The 1th step, because the installation informat
sketches without repairing forth projects and creating any files, Android Studio (Intellij IDEA) provides all the auxiliary coding capabilities for scratch files.4. Android Mode:All files are categorized by type, which is not the actual file structure in the computer.5. Project Files Mode:A project structure similar to eclipse.6. Problems mode:Displays only the file structure of the error.7. Production Mod
program.Continue to use the Listviewsample module of the Widgetsample project to create a spinner_layout.xml file in the app/main/res/layout/directory populated with the following code snippet:XML version= "1.0" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Ma
exampleNext, a simple example program is used to learn the common use of button.First, download two picture materials from the Internet, then put it in the res/drawable/directory, create a button_layout.xml file in the res/layout/directory, and populate it with the following code snippet:XML version= "1.0" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/
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