The enumerated values of Android. Graphics. bitmap. config are alpha_8, argb_4444, argb_8888, and rgb_565.

Public Enum config {// These native values must match up with the enum in skbitmap. h alpha_8 (2), rgb_565 (4), argb_4444 (5), argb_8888 (6); config (INT Ni) {This. nativeint = ni;} final int nativeint;/* package */static config nativetoconfig (INT

Setxfermode for Android plotting

  Setxfermode Set the mode when two images are intersecting We know that under normal circumstances, drawing on an existing image will add a new shape to it. If the new paint is completely opaque, It will completely block the paint below;

Android-custom expandablelistview implementation with checkbox

The previous article introduced the implementation of custom listview with checkbox. This article describes the implementation of custom expandablelistview with checkbox. The principle is the same as that of listview, you only need to modify the

How to download Android source code

1. Install gitDownload the latest gitsource code package from http://git-scm.com/and decompress: # Tar-xjf git-1.6.3.3.tar.bz2 Compile and install: # Cd git-1.6.3.3 #./Configure # Make; make install # Git -- versionGit version 1.6.3.3 2. Install

Dynamically implement ichartjs & highcharts plotting 2D 3D line chart bar chart and so on Android

Project directory: Contact. Java package com.example.html5_chart;public class Contact {private String name;private double value;private String color;public Contact(String name, double value, String color) {super();this.name = name;this.value =

Debugging configuration of Android ndk on Ubuntu

Debugging configuration of Android ndk on Ubuntu When debugging local C/C ++ on Android, you can directly use GDB to debug it in the command line, which is very troublesome. The Sequoyah plug-in is used to integrate the debugging function into

Android handler, activity, and service Summary

1. Handler Learning Because of the time-consuming operations that sometimes need to be performed, if these operations are placed in the main thread, it is easy to cause the program to be suspended, and the final result is a system crash. Therefore,

1 -- monkey-based stress testing for Android

Monkey is a self-designed stress testing tool for Android. It can run in a simulator or on a real device. It sends a pseudo-random user event stream to the system to test the stress of developing applications. The basic syntax is as follows:Monkey

Android mobile phone screen adaptation & resolution adaptation

Android screen resolution adaptation is a pain thing ah, engaged in a brother one afternoon, Xiaomi mobile phone 480*800 Samsung GT-I9220 1200*800 most mobile phones on the market are 480*800, to meet the adaptive corresponding to each resolution to

Android determines whether there are several common methods in the network method tool class

1 ./** * Obtain the network connection method.** @ Param Context* @ Return*/Public static networkinfo getactivenetwork (context){If (context = NULL)Return NULL;Connectivitymanager mconnmgr = (connectivitymanager) Context. Getsystemservice (context.

Download httpurlconnection from Android files

Step: Obtain the URL object URL through the new URL (target URL string) ----> call the openconnection method of the URL to obtain an httpurlconnection object connection ----> call the getinputstream method of connection to obtain an inputstream

Android sends SMS messages

 Android sends SMS messages   Layout layout file main. xml     Strings. xml Hello smsactivity! text message sender enter the mobile phone number enter the text message content send SMS message sent successfully

Android NFS development Configuration

[1] installing the NFS service on a PC Sudoapt-Get install nfs-kernel-Server Configure the NFS server and set the mounted directory to/nfs/rootfs. Sudovi/etc/exports Add a line at the end of the exports file: /Nfs/rootfs * (RW, sync, no_root_squash)

Use the MM command to compile the android module.

Reprinted: http://blog.csdn.net/kellycan/article/details/6457030     In the android development process, when we only need to compile a modified module, the MM command can enable you to compile the entire android project, instead of compiling the

Android NFS development configuration.

From: http://blog.csdn.net/wlr_tang/article/details/6792387     [1] installing the NFS service on a PC Sudo apt-Get install nfs-kernel-Server Configure the NFS server and set the mounted directory to/nfs/rootfs. Sudo VI/etc/exports Add a line at

Hide commands using Android

Add a secret program and start it by dialingAndroidmanifest. xmlSecret. JavaPublic class secret extends broadcastreceiver {@ OverridePublic void onreceive (context, intent ){String action = intent. getaction ();String host = intent. getdata ()! =

Switching between landscape screen and landscape screen does not require destruction. re-create Android: configchanges

When the Android: configchanges of the activity is not set, the split screen will re-call each Lifecycle When setting the activity's Android: configchanges, the split screen will not re-call the Declaration cycle, but will only execute the

When Android ksoap2 accesses WebService for two consecutive calls, the second call is abnormal.

1. WebService. getvcardbyuserno (string userid, string userno); this is the encapsulated WebService interface. 2. When ksoap2 calls this interface twice in a program, it throws an exception when parsing the result returned by the second

FFmpeg is successfully transplanted to Android.

After two days of migration, ffmpeg0.7.6 to adnroid is successfully transplanted. The following problems are encountered during the transplantation process. Please indicate the source. Tools: Ffmpeg-0.7.6Android-ndk-r4bUbuntu 10.11Path: Root \

Android cut image display part

Method 1:   The canvas class is used for drawing. you can use the canvas class member functions to draw any part of the image as you wish. canvas. cliprect: Set the display area canvas. drawbitmap: Drawing example: bitmap B = bitmapfactory.

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