different notification sounds for different apps android

SQLite, is a lightweight database, is widely used in a lot of embedded products, because the use of very little resources, two of the operation of the way almost and we contact the database is not much, even only hundreds of k he will naturally be favored by the demand, Let's talk about how to read and write to him in such a lightweight database.Before making a selection of contacts appear if a phone more than 2000 contacts, inserting into the database will be very time-consuming,

1. There are three methods to process key events in Android gridview: Public Boolean onkeydown (INT keycode, keyevent event) Public Boolean onkeyup (INT keycode, keyevent event) Public Boolean onkeylongpress (INT keycode, keyevent event) Obviously, long-press events are handled in the onkeylongpress function. If the time of the gridview is long, the corresponding short press event (gridview. setonitemclicklistener (), and the processing of Long-key ev

There are many android devices in different shapes and sizes in the world. If you support a wide range of device types, you will have the opportunity to access a wide range of user groups. To achieve greater success on android, your program needs to adapt to different device configurations. You need to support

X can be interpreted as hdpi according to the mobile phone screen standard, 480x320 is mdpi, and 320x240 is ldpi. According to the latest data, hdpi and mdpi of all Android mobile phones account for a ratio of more; System Version, up to 2.1 ~ The proportion of 2.3 is also an absolute proportion. We can use this as the basis for adaptation. we need to pay attention to this data at any time, especially in the months after the launch of a new version

In Android development, the methods, classes, or interfaces that allow you to see each other are quite different. Source: liukun (@ TheFresher) PS: In this article, I am familiar with Android development. What methods, classes, or interfaces do you think you may find different? The answer to this question is summarized

= =; activity ; ... 2. Build and launch notifications A. Create a intent to start the activity. B. Set the ACTIVITY to start a new, empty task stack by calling the SetFlags () method and setting the Flag_activity_new_task and Flag_activity_clear_task flags. C. Set the options you need for intent. D. Create a pendingintent from intent by calling Getactivity (). You can use this pendingintent as a parameter to the Setcontentintent () method.

Why do I need to add channel information to my application?The launch of Android apps has to face a variety of markets, which we call channels. Sometimes, we need to know which channel the application is downloaded from. For example, we may need to count which markets bring a larger number of users. For example, we may have some profit needs and specific channels to divide. These are all statistical channel

Naming |--- | --- |16x16 (MDPI) |. png |24x24 (hdpi) |32x32 (xhdpi) |48x48 (xxhdpi) |64x64 (xxxhdpi) |* * NOTE * * Small icons are used for surface action or display as a specific state. For example, in a Gmail app, each message has a star icon marked as important by the message. Notification bar icon (Notification icons)---Sizes (px) | Format and naming--- | --- |22x22 area in 24x24 (MDPI) |. png33x33 ar

Android official Getting Started document [9] support for different languagesSupporting Different LanguagesSupport for different languagesThis class teaches1.Create Locale directories and String Files2.Use the String ResourcesYou should also read? Localization Checklist? Localization with ResourcesThis course teaches y

Android is a device that runs on a variety of different screen sizes and densities.The Android system provides a unified development environment across devices and handles most of the work to adjust the screen of each application's user interface to display on it. At the same time, the system provides APIs that allow you to control the UI-specific screen size and

is the Android emulator main program, but from Android 1.5, you need to enter the appropriate parameters to start the simulator, TraceView as an important debugging tool on the Android platform. 8. Usb_driver, as its name implies, is the driver of Google's official Android platform, such as Nexus One, Nexus S, and so

Hypothetical scenario:Create two apps Appa and Appb,appa contain a service that has a blocking method that produces a random number every 10 seconds, as follows:public int Getrandomint () { thread.sleep (10000); return somerandomint;}APPB calls the method of Service.getrandomint () in Appa and displays the numbers on the interface.Solution:As we all know, from the level of the general can be divided into processes, tasks, components, threads,

The following is a detailed analysis of the use of Fragment. If you need a friend, please refer to it. Recently, things are very busy. A new project is coming out, but many functions need to be re-implemented, and code and Debug have been being compiled. Today, a new program uses Fragment. Although Fragment has been used before, it has not been carefully studied. Today, I will write an article to record the use of Fragment. This article mainly refers to the introduction on the

tablets of the same program will definitely be different, the possibility of a large screen is bigger than that of a small screen, and there are various interface la S and code. It Seems messy to put it in a project. It is not as good as a dedicated HD version for iOS tablet apps. This mixed strategy can easily cause the mobile phone version to be installed on the tablet, and then it will encounter an ugly

Lead: the US it website CNET wrote today that, unlike Microsoft and Apple, Google's key Chrome OS and Android operating systems have completely different ideas. Although this will obscure Google's development direction, as the fields involved in these two systems have become an important development trend in today's technology field, they are not mutually exclusive. The full text is as follows: 　　Two major

Video Address: http://study.163.com/course/courseLearn.htm?courseId=712011#/learn/video?lessonId=877122courseId= 712011First, the question:1, how to do an app different process communication?2. Multiple app communication (different apps)3. Inject event run script and invoke hidden APISecond app different process commun

Android mobile guard-Parse json and message mechanisms to send different types of messages, androidjson URL: http://www.cnblogs.com/wuyudong/p/5900800.html.1. parse json data Json parsing code is simple JSONObject jsonObject = new JSONObject (json); // debug, solve the problem String versionName = jsonObject. getString ("versionName"); mVersionDes = jsonObject. getString ("versionDes"); String versionCode =

events);"False" indicates an unavailable state to use. android:window_focusedBoolean. "True" indicates that the application window has the focus when used (applicationin the foreground); "false" means use when there is no focus (for example, the notification bar pullsOr the dialog box appears).Note: Remember that the first item in StateList that matches the current state will be used. Therefore, if the first item is notIf there is any state attribute

Background In the process of application development, it is often seen that some information with different font styles is like the time and charging information on the default lockscreen. In a similar situation, the first possible response is to use different textviews. Different font styles are set for each textview to meet the requirements.

Thanks to the original author's collation:http://blog.csdn.net/chenyjays/article/details/41308887Adapting to a different language　　Store strings in the UI in an external file, extracted by code.Creating locale directories and string filesIn order to support multiple languages, create an additional values directory in res/named after the hyphen and ISO country code, such as values-es/is a directory where a simple resource file is placed for areas where