Overview:
The client cache mechanism is a very important task in Android Application Development. Using the cache mechanism can not only save 3G traffic for users, but also provide a good choice for user experience.
The cache mechanism is divided into two parts: Text cache and multimedia file cache.
Cache file storage policy:
1. Text cache:
The
. However, in this example, another simpler method is to use the Android. Text. style. imagespan class to insert images directly. Let's take a look at the specific implementation code.
Public void onclick_randomface (view) {// random generation of an integer ranging from 1 to 9: int randomid = 1 + new random (). nextint (9); try {// randomly generated integers 1 to 9 from R. field object for obtaining the c
A few months ago, I first learned about the iflytek voice input method from my microblog commenting on shoes. After reading the in-depth evaluation of shoes, I tried it and downloaded the application as soon as possible, the results are indeed beyond imagination, so I recommend them to my friends.
Although the frequency of text messages is getting lower and lower, there are more and more people who prefer to make a phone call directly, and more friend
This article links http://blog.csdn.net/jan_s/article/details/51338944 , reprint please leave a message. In the Android development process, often see the text in the focus of the field is required to change color, in order to show its particularity. This time most people will use the simpler way is to come out again new TextView, obviously very fast, but this is undoubtedly to add trouble to the layout, he
This article illustrates the implementation of the text (FontMetrics) for Android programming. Share to everyone for your reference, specific as follows:
Canvas as the text is drawn, the FontMetrics object is used to calculate the coordinates of the position.
Its mentality and java.awt.FontMetrics are basically the same.
FontMetrics objects
It is
This article translated from: http://developer.android.com/guide/topics/text/copy-paste.html
Android provides a powerful clipboard-based framework for copying and pasting. It supports simple and complex data types, including text strings, complex data structures, text and bi
Android-obtain weather information and download the source code based on Webservice (3)
This project is described as follows:1. You can obtain service information in three ways. Soap, http get, and http post are used to obtain information.2. Detailed steps for webservice calling Based on android
As described in the pre
.
12. You can see
The server name is the connection address of WeChat chat. You can use the spark or WeChat Chat link for IM communication and chat ......
So far, openfire installation and configuration have been completed. The next article begins to complete the installation and configuration of WeChat chat.
II. Implementation of the android Client
First, browse the project structure and start to parse the code one by one:
The main code is atta
Address: http://xmchang.bokee.com/6922990.html
Android text is drawn to bitmap. OpenGL ES does not seem to be able to output text. Writing text to bitmap can be used as a texture to achieve text output.
The method for drawing tex
shared between multiple//activities, you must is careful about when you read or write//it in order to keep from stepping on yourself.Sharedpreferences preferences = Getsharedpreferences ("Redirectdata", 0); Mtextpref= Preferences.getstring ("text",NULL); if(Mtextpref! =NULL) {TextView text=(TextView) Findviewbyid (R.id.text); Text.settext (MTEXTPREF); return true; } return false; }Other u
The original font unit SP,SP (pixels independent of density and font scaling): Similar to DP, but can be scaled based on the user's font size preference. When the user's font settings are magnified, problems such as cloaking can occur.Solution One:Automatically adapts, does not set the height and so on information. This makes the development and maintenance of the program more difficult! Because the implementation of who can not predict the size, loca
Original URL: http://blog.csdn.net/eyu8874521/article/details/8252216Through the recent idle time on the study of fragment, try to write a small demo, will be used in the development of fragment knowledge to put together, wrote this demo to the Android fragment more in-depth understanding of the project will be a lot easier to do in the future , let's put a few pictures after the implementation:The implementation of the function is very simple, but al
drive
Internal storage space Internal storage
SD card:
The equivalent of a computer's mobile hard drive
External storage space External storage
SD card StatusRemove: No plug-in SD card UNMOUNT:SD card is plugged in, but no Mount CHECKING:SD card is being traversed by the system MOUNTED:SDcard can read and write mounted read ONLY:SD card is available, but read onlyGet the remaining capacity of the SD card
Chunk size
Total number of blocks
Number of ava
Android event-driven programming-Based on EventBus (2), androideventbusAndroid event-driven programming (2)
-- Welcome to reprint, please indicate the source of http://blog.csdn.net/asce1885, do not use for commercial purposes without my consent, thank you --
Link: https://medium.com/google-developer-experts/event-driven-programming-for-android-part-ii-b1e05698e4
In Android development, our activity will inevitably use a lot of view parts, and for each view we have to Findviewbyid, set up listeners, get the results of user input and so on. If we think carefully, do these trivial operations not have much to do with the logic of this activity? Many of the activity uses a common view combination, can you abstract them into a reusable composite component?
This article is base
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