Android

Today I encountered a problem:In Android, clicking listview and clicking button inside cannot take effect at the same time. The reason is: When the listview starts to draw, the system first calls the getcount () function to obtain the length of

It is very easy to load a bitmap (Bitmap) to your UI in Android, but if you want to load a large number at a time, it will become much more complicated. In most cases (components such as listview, gridview, or viewpager), the number of images on the

Working principle of the recovery mode in Android system When using the update.zip package to upgrade, how does one restart the main system to enter the recovery mode? after entering the recovery mode, how does one determine what operations to

Next, let's take a look at the image section on Weibo. In the previous article, we used webview to process the image display in the URL and basically achieved the goal. However, there are still one or two details to be processed to improve the user

1Init has not changed much. We can see from init. RC that the rule has not changed, but init. RC has some new settings. It seems that it is more dependent on some information about the kernel. 2App_process has not changed much, that is, zygote has

  Taking tcc88xx as an example, when the top-level Source Code directory of Android is compiled using make, such a directory is generated: Out/target/product/tcc8800. This directory contains the required boot. IMG and system. IMG, Boot. mg It is

Hello everyone, we are going to use Android mediaplayer today   Step 1: Preparation work.   Mksdcard 512 M sdcard. img   Create a new AVD named androidsdcard       Push songs into sdcard (before you push, you make sure your AVD is running, else the

In the development process, you need to delete the app that comes with your mobile phone. Otherwise, the package name will be the same and we will not be able to install our own app. During the deletion process, you need to delete two places in

Disclaimer: This article is translated from Guide/topics/UI/dialogs.html In the android SDK documentation.   A dialog is usually a small window in front of the current activity. When a dialog is displayed, the activity partially covered by the

Please post, but please note the address: http://blog.csdn.net/ethan_xue/ Thank you Recently, due to project requirements, the image selected when edittext is changed and the network search fails, so you can view the source code. There is nothing in

How to modify the system time in Android (the application obtains system permissions)Systemclock is provided in the android API. setcurrenttimemillis () function to modify the system time. Unfortunately, no matter how you call this function, it is

Button button1 = (button) findviewbyid (R. Id. bt ); Inputstream stream = NULL; Try { Stream = getassets (). Open ("button_compiled.9.png "); } Catch (ioexception E1) { E1.printstacktrace (); } Bitmap bitmap = bitmapfactory. decodestream (Stream );

The android ndk is a companion tool to the android SDK that lets you buildperformance-critical portions of your apps in native code. it provides headers andlibraries that allow you to build activities, handle user input, use hardware sensors, access

Public class draggridview extends gridview{Private string tag = "draggridview ";Private int dragposition; // The position to start dragging.Private int dropposition; // The Position of the end dragPrivate int dragpointx; // The X coordinate relative

-- Persistence is victory! Can you stick to it? No, you are doomed to be a loser. Introduction For the principles and terminologies of Android applications, the first two articles are as follows: Android development: Application basics and

  To welcome the victory of the third cloud computing conference, piaolankeke and I developed the Android Application of the third cloud computing conference and presented to the cloud computing conference. Users at all levels of csdn are welcome

Getting the Google Maps Android API V2 is now upgraded to V3 by Google map API. V2 is popular. V1 has been marked as obsolete. The Demo code is located in SDK extras/Google/google_play_services/samples/maps Google CodeConsole address First

It is troublesome to compile an ant script from the school. It is not very simple and the dependency is okay. The speed is good. A long time ago, Daniel wanted me to recommend gradle, which is much better than ant. Now, it is true that gradle was

/*** Paint is the paint brush, which plays an extremely important role in the drawing process. The paint brush mainly saves the color, * style and other drawing information, specifying how to draw text and graphics, there are many ways to set a

Trackball This is a bit similar to the mouse on the PC and can be used for navigation. Therefore, focus is available, but the actual operation is not significant, because the whole screen is touch and what else to do with navigation, do you need to