saving, Also not with Google's C2DM notification conflict 6, Android allows the program to run directly in the background or through the service to run the Notification Service support situation: Google: C2DM or self-built push service (C2DM service is greater than or equal to Android 2.2 version, and need Googleid)Apple:APNS or enforce self-built push (requires AppleID)Microsoft : MPNS or service agent (r
Qt on Android: how to adapt to different screen sizes, qtandroid
How can I use Android apps developed by Qt to adapt to various screen sizes of Android smartphones?
Speaking of the screen size, there are mobile phone screens from 2.8 to 8.9, which is more painful for programmers. The
How does the font size of Android adapt to different resolutions?
Someone asked me today how to adapt the font size of mobile phones with different resolutions and sizes in the android system? In fact, the adaptation of fonts and images is a truth.
I,
The principle is as follows:
Assume that the resolution is 320x240,4
1. Different LayoutThe screen sizes of Android mobile phones vary by 480X320,640x360,800 X. How can an app automatically adapt to different screens? In fact, it is very simple, just need to create different layout folder under the res directory, such as: layout-640x360, layout-800x480, all the layout files will be writ
2014-07-16Environment: COCOS2DX 2.2.4AppDelegate.cpp in FPS set to 60Pdirector->setanimationinterval (1.0/60);Problem: Run on two Android devices. Two FPS is not the samei9100:4.0 system, fps approx. 60, (change FPS to 30, also changes)s5700:2.3 system, fps approx. 80, (change FPS to 30, still 80)This results in the game brush frame, the two machines run at a different speed.Workaround such as the following
Re-installation failed due to different application signatures (2013-04-20 14:27:32) reproduced
Tags: workaround issues Folder Directory troubleshoot issues
Category: Android
I just installed the environment on another machine. When you load my app, the following occurs when the runtime:The workaround is to:Find the directory of the SDK, such as my, my directory is
Control of different text fonts in development is mainly the use of typeface objectsBecause it is a simple demo, are using the Android native components, although ugly, you can learn something is OK! (if there are errors or deficiencies, please enlighten me, thank you!) )Let's take a look at the simple running effect. That is, setting two buttons, one TextView, and clicking a
directly copy the code in this directory into my project's package, delete an unrelated class, directly use it, and of course I need to copy a resource file is Ids.xmlThe actual running effect, is the same as the above two ways, then its implementation by what difference, in fact, and the second way there is no big difference, basically is onitemtouchlistener plus gesture to achieve, but its logic may be more rigorous, design more excellent. In addition, there is a Itemselectionsupport class in
Recently in the circle of friends "looking for the name of the house" and "Miles seek knife" this kind of small game comparison of fire, I tried to write a version of Android, Inside is a series of shape near the word, the realization principle is very simple: with a GridView and then each of the square can be made, Click on the correct item to change the number of rows and columns in the GridView.First, the game description:Look for
We often compile different libraries in different scenarios, and often cooperate with third parties. The other party provides static libraries, dynamic libraries, and configuration files, you may also need to provide the database to the other party and take this opportunity to summarize some of the situations used. The android. mk below is written in some templat
Project EnvironmentProject Build target:android 6.0Problem:When using the new Notification (int icon, charsequence tickertext, long when) constructor, Eclipse prompts: "The constructor Notification (int , Charsequence, long) is deprecated "The source code is as follows:/*** constructs a Notification object with the information needed to* has a status bar icon without the standard expanded view.** @param icon The resource ID of the the icon to put in the status bar.* @param tickertext the text th
Android calls between different processes AIDL implementation of communication services recent calls to different processes in Aidl Android have made some attempts to make calls between different applications:The steps are as follows:1: First write the service services in
To handle a wide range of resolutions and sizes.
For images, Android uses DPI as the unit. If you select an image, right-click the image under win and you will see the DPI attribute. The higher the DPI, the finer the image. For a mobile phone or display device, a pixel is a point, so DPI = PPI. In turn, it is often said that the height and height of the phone screen PPI are equivalent to the DPI value taken into account when writing a program.
The Ret
In the recent team project development app, there is an interface that uses WebView to display instead of native controls.The problem with developing this interface is that the fragmentation of Android results in many screen resolutions, with screens of different resolutions that are compatible with the size of the controls within the interface WebView.Because the Andro
Android screen resolution adaptation of the icon processing more trouble, let the UI do different size of the picture is also a waste of time, and error prone, so use Python to write a tool to automate the processing of pictures, the UI only need to do a good 1080*1920 resolution of the picture can be, Images of other resolutions are automatically generated.Import os.pathimport sysfrom PIL import Image "" "
1 button to set the Android:background property by pressing the different effects down,2 The following button_select is actually Button_select.xml -3 4 Button5 Android:id= "@+id/btn_contentprovider"6 Android:layout_width= "Wrap_content"7 Android:layout_height= "Wrap_content"8 Android:background= "@drawable/button_select"9 Android:text= "Contact without diagram" >Ten Button>Button_select.xml:1 XML version= "1.0" encoding= "Utf-8"?>2 sel
Qt on Android: how to adapt to different screen sizes
How can I use Android apps developed by Qt to adapt to various screen sizes of Android smartphones?
Speaking of the screen size, there are mobile phone screens from 2.8 to 8.9, which is more painful for programmers. The Android
Sometimes, to display different images in the same ImageView, we often use:View plaincopy to clipboardprint?If (condition 1 ){Image. setBackground (R. id. xxx1 );} Else if (condition 2 ){Image. setBackground (R. id. xxx2 );}If (condition 1 ){Image. setBackground (R. id. xxx1 );} Else if (condition 2 ){Image. setBackground (R. id. xxx2 );} You can use another simple method to implement the same function. First, create an xml file under res/drawable wit
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