different notification sounds for different apps android

This article translated from: http://developer.android.com/training/basics/supporting-devices/screens.html Android uses two attributes to classify the screen of a device: size and density. You should imagine the device screen size and density range for installing your app. For example, you should include some optional resources to optimize the display appearance of your applications on screens of different

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

Today, someone asked me, Android system different resolution, different size of the phone, font size how to adapt it? In fact, the adaptation of the font and picture adaptation is a truth.OneThe principle is as follows:Suppose you need to adapt to 320x240,480x320 resolution. Create a new folder under the Res directory values-320x240, values-480x320. Then in the f

we all know that a canvas is required for plotting, and then graphics is used to draw the desired pattern. Yes, it is similar in Android. You can get its canvas from a bitmap and draw it. You can also customize a view and use its canvas. When there is no graphics in Android, but instead of using the paint, the usage is also slightly different. Code : JAVA code

Android Message and obtainMessage are different. androidobtainA few days ago, I needed to implement an Ethernet function and read the source code of Ethernet. When I saw the source code in message processing, I found some differences: When I am processing messages: 1. Create a Handler object: private Handler handler = new Handler () {public void handleMessage (Message msg) {switch (msg. what) {case 0: break

　　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

/ awesomeimage.png drawable-hdpi/ awesomeimage.png drawable-mdpi/ awesomeimage.png drawable-ldpi/ awesomeimage.pngNext, when referencing @drawable/awesomeimage at any time, the system selects the appropriate bitmap image based on the DPI of the screen.Finally, put the boot icon into the mipmap/folder:res/... mipmap-ldpi/... finished_launcher_asset.png mipmap-mdpi/... finished_launcher_asset.png mipmap-hdpi/... finished_launcher_a

Automatically generate images at different Android resolutions It is troublesome to process the icons for Android screen resolution adaptation, which makes it a waste of time to make images of different sizes on the UI and is prone to errors. Therefore, I wrote a tool in Python to automate image processing, the UI only

of course I'm using 1.7.*************************************************************************************************************SDK (software Development (development) kit (kit refers to a lot of small pieces of a small piece of something similar to a medicine box is called kit, this refers to the tool bag))Java has SDK (that is, JDK), Android also has SDK (such as. 9.png tools, etc.)JDK (Java development Kit)JDK is the SDK for the Java language

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

, that is, before android3.0, Android:bottomleftradius and Android: Bottomrightradius is the opposite, that is, I was just set to the left, but a diagonal display, because I did not learn, but in the internet for a long time did not find a solution, after knowing the Android loading layout file method, we know this solution , in this record, is in our res set up a directory called DRAWABLE-V12, this file di

The debugging information is as follows: [10:08:37-apidemos] re-installation failed due to different application signatures. [10:08:37-apidemos] You must perform a full uninstall of the application. Warning: This will remove the Application Data! [10:08:37-apidemos] Please execute 'adb uninstall com. example. Android. APIs 'in a shell. [10:08:37-apidemos] Launch canceled! Check the following informat

All image settings in Android ViewPager listen to different images displayed in the same activity, See the previous article for monitoring all image settings in Android ViewPager. In order to save time, the two-layer menu only displays the corresponding image activity after clicking any image. The key point is how to pass parameters to the displayed activity for

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

/********************************************************************* * Different stages of Android Logo display * Description: * U-boot Stage has the Logo,kernel stage has the logo, the file system init stage has the logo, * enters the android to have the dynamic logo. * 2016-9-8 Shenzhen Nanshan Ping Shan village Zengjianfeng **********************************

Diffbundle = new bundle ();//if (!newitem.header.equals (Olditem.header)) {//Diffbundle.putstring (Key_heeder, newitem.header);// }//if (!newitem.footer.equals (Olditem.footer)) {//Diffbundle.putstring (Key_footer, newitem.footer);// }//if (diffbundle.size () = = 0) return NULL;//return diffbundle;}This we write a bean, inside we put the header and footer, and then make a comparison, this way I will not write the demo. Believe in this writing you should be able to read.

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

Objective About the use of recyclerview here is not to repeat, I believe that a lot of online search (I also have a simple introduction of the article), this time we are talking about the use of recyclerview in the process, sometimes according to different locations load different layout of the simple realization, This is just a point of action. Effect chart Design ideas• Rewrite the recyclerview.adapt