Android

Sometimes we may use the constant listening for the edittext input characters, the number of listening characters, and some regular expression processing. The following methods can be implemented: What I do is synchronize the data input by

1. Source If you do not have the root permission during Android development, it is sometimes painful. Because SQLite Editor, wall flip proxy, host file modifier and other tools all require root permissions to work. 2. Method The perfect flash

Android 4.1 and later versions use a scroll time control similar to iOS, but below 4.1, timepicker is used to change the time by clicking the upper and lower buttons. Although it also provides edit box editing, but it may be out of the editing range.

Why do we need feedback on the crash report?   Android applicationsProgramTo avoid crash. Although zero-crash is the ultimate goal pursued by programmers, the reality is that programmers can only minimize the occurrence of crash, and it is

The Code has not been sorted out yet. Package com. mediatek. uidemo; Import Android. App. activity;Import Android. OS. Bundle;Import Android. View. contextmenu;Import Android. View. contextmenu. contextmenuinfo;Import Android. View. Menu;Import

Problems:  I see other people's programs, want to learn how people's UI layout is done, how can I snoop into one or two? Problems:  When learning viewgroup and layout, we may have a question. If I do not place layout in the XML layout file or

Http://news.cnblogs.com/n/106763/ From the day when Android was born, this cute little robot, by virtue of its open-source power, squeezed Ios to the throne with the highest market share. Although the numbers are dominant, IOS is always the mobile

1/** 2 * switch from DP unit to PX (pixel) 3 */4 public static int dip2px (context, float dpvalue) based on the cell phone resolution) {5 Final float scale = context. getresources (). getdisplaymetrics (). density; 6 Return (INT) (dpvalue * scale + 0

I believe many people use mediaplayer to play Network Audio. The buffer between prepare and prepareasync is too slow. How can this problem be solved? Now we will provide a solution for hands-on testing and using it in actual projects.In this

  Android game guidance (4. Simple texture textures) This section describes OpenGL's texture technology and involves simple texture knowledge. I am busy with annual leave. Download source code: Click meTable of contents 1 texture 1.1 texture

[Author: Zhang banquet this article version: V1.0 final modification: 2010.01.20 reprinted please note the original article link: http://blog.s135.com/android_apk_zip] The day before yesterday, a colleague from Kingsoft network asked me a question:

This article is reproduced. I hope my friend has a good interview question to study ...... 1. Check whether the process of Android DVM is the same concept as that of Linux. DVM refers to the Virtual Machine of dalivk. Every android application runs

Timer is a class for executing tasks. It accepts timertask parameters; There are two ways for timer to execute a task. One is to execute a task timer at a specified time. schedule (timertask task, data), the other is how long it takes to execute a

Http://www.ilingxi.com/blog/duanhongchang? P = 72 We all know that the finish method of the activity can only exit the current activity. But what if we want to exit all created activities with one click? We designed a class to manage the activity of

From: http://sites.google.com/site/siteofhx/Home/android/android-porting-steps 1. First of all, we all know that android is a software platform based on Linux. Most of the work of porting Android is actually porting from Linux to p535. Therefore,

Android immutable bitmap passed to canvas constructor exception 40 people read comments (0) collect reports The cause of immutable bitmap passed to canvas constructor error is that if you do not use the copy method, direct reference will modify the

Reprinted: http://topic.csdn.net/u/20110417/14/edcbbcd9-44f0-4175-a156-0231d12cba47.html 1. add, delete, and modify SIM card contactsUri is content: // ICC/ADN/The specific usage is the same as that of other contentprovider operations. For the

In the android system, when the SD card is attached to a computer and the recording in the voice memo is deleted manually, the data in the corresponding database also needs to be modified. In this case, you need to listen to the Mount and inherit

Some device configurations may change during running (for example, horizontal screen layout, keyboard availability, and language ). When such a change occurs, Android restarts the running Activity (onDestroy () method and then calls the onCreate ()

++ ++ This article is original on this site. You are welcome to repost it! Reprinted please indicate the source: Http://blog.csdn.net/mr_raptor/article/details/6598891 ++ ++   Environment Introduction: 1. ubuntu 10.10, used as the Android compiling