ultrapro的专栏

Release 10, 没有安装过SDK的相应平台版本，解压或者安装后，用AVD Manager下载相应版本的SDK。如果已经安装过SDK直接用AVD Manager更新SDK就行了。Linux： http://dl.google.com/android/android-sdk_r10-linux_x86.tgzMac：   http://dl.google.com/android/android-sdk_r10-mac_x86.zipWindows：http://dl.google.com/android

android 监听联系人数据库 代码 stackoverflow

在Android 的Camera 预览上执行 Drawing 操作

<br />windows zip：http://dl.google.com/android/android-sdk_r11-windows.zip<br />windows exe：http://dl.google.com/android/installer_r11-windows.exe<br />Mac OS：   http://dl.google.com/android/android-sdk_r11-mac_x86.zip<br />Linux(x86): http://dl.google.com

<br />Cut from stackoverflow<br /> <br /> <br />PackageManager p = this.getPackageManager();  <br />final List<PackageInfo>appinstall =p.getInstalledPackages(PackageManager.GET_PERMISSIONS|PackageManager.GET_RECEIVERS| PackageManager.GET_SERVICES|PackageMa

<br />stack over flow<br /> <br />This thread will get you started with building your own title bar in a xml file and using it in your activities<br />Edit<br />Here is a brief summary of the content of the link above - This is just to set the color of the

<br />from stackoverflow<br /> <br />通过shell 调用ulimit 命令<br /> <br />ulimit -Sv10000<br /><br />这个将对当前shell启动的应用设置使用内存的上限为10 000 Kb。<br /> 

<br /><br />from stackoverflow<br />File dbfile = new File("/sdcard/mydb.sqlite");  <br />SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(dbfile,null); <br />

Android OEM USB DriversSee alsoDeveloping on a DeviceGoogle USB Driver<br />If you are developing on Windows and would like to connect an Android-powered device to test your applications, then you need to install the appropriate USB driver. This document p

Installing the ADT Plugin<br />The sections below provide instructions on how to download and install ADT into your Eclipse environment. If you encounter problems, see the Troubleshooting section.Preparing Your Development Computer<br />ADT is a plugin for

<br /><br />当收到back键消息时，调用moveTaskToBack，这样的效果和按Home一样，程序并没有退出，而是在后台。<br /><br />@Override<br />publicboolean onKeyDown(int keyCode,KeyEventevent){<br />    if(keyCode ==KeyEvent.KEYCODE_BACK){<br />        moveTaskToBack(true);<br />        returntrue;<br

<br />1.使用ANDROID_IDimport android.provider.Settings.Secure;<br />privateString android_id =Secure.getString(getContext().getContentResolver(),<br />                                                        Secure.ANDROID_ID);<br />这个值应该是在系统第一次启动后计算出来的，设

<br /><br />在字符串资源的xml文件中可以添加， HTML 标签 <b></b>,<i></i> 和<u></u>.<resource><br />    <stringname="your_string_here">This is an <u>underline</u>.</string><br /></resources><br /><br />在代码使用：TextView textView =(TextView) view.findViewById(R.id.textview);<br /

You need to declare a broadcast listener that listens for RECEIVE_BOOT_COMPLETED android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>In your listener:Intent myStarterIn

The sections below provide notes about successive releases ofthe ADT Plugin, as denoted by revision number. ADT 11.0.0 (June 2011) Dependencies:ADT 11.0.0 is designed for

Windows VistaTo install the Android USB driver on Windows Vista for the first time:Connect your Android-powered device to your computers USB port. Windows will detect the device and launch t

latform Package Size MD5 Checksum Windows android-ndk-r5c-windows.zip 61627716 bytes2c7423842fa0f46871eab118495d4b45Mac OS X (intel) androi

OEM Driver URLAcerhttp://www.acer.com/worldwide/support/mobile.html alcatel one touchhttp://www.alcatel-mobilephones.com/global/Android-DownloadsAsushttp://su

在AndroidManifest.xml文件中，添加 android:screenOrientation="portrait" 或者 android:screenOrientation="landscape" 即可限定Activity 转向。例如：  and

Android Framework 的drawable 目录中不能创建子目录，如果创建了，编译器不能正确生成R.java中的ID。

private boolean isServiceRunning() {    ActivityManager manager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);    for (

SDK Archives This page provides a full list of archived and obsolete SDK releases,including non-current versions of active releases

这个两个是配套使用的,是用SDK Manager更新 SDK Tools, 然后用exlipse 更新ADTADT 12.0.0 (July 2011)Dependencies:    ADT 12.0.0 is designed for use with SDK Tools r

private Bitmap decodeFile(File f){    Bitmap b = null;    try {        //Decode image size        BitmapFactory.Options o = new BitmapFa

http://560b.sakura.ne.jp/android/VerticalSlidebarExample.zip

Android 断点续传

Try using apache commons ftpftpClient.connect(InetAddress.getByName(server));ftpClient.login(user, password);ftpClient.changeWorkingDirect

Android 多附件 eMail

public class Test extends Activity  implements SensorEventListener{public static float swRoll;public static float swPitch;public static

px Pixels - corresponds to actual pixels on the screen. in Inches - based on the physical size of the screen. mm Millimeters -

To capture actions performed on one Activity within another requires three steps.Launch the secondary Activity (your 'camera Activity') as a

Put your SurfaceView inside of aFrameLayout or RelativeLayout inyour layout XML file, since both ofthose allow stacking of widgets onthe Z-a

可以在Layout文件中使用android:divider 属性  xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="wrap_content"  android:l

Low density (120), ldpi Medium density (160), mdpi High density (240), hdpi Extra high density (320), xhdpi

Platform Package Size MD5 Checksum Windows android-ndk-r6-windows.zip 67642809 bytes 9c7d5ccc02151a3e5e950c70

API Level: 13Welcome to Android 3.2!Android 3.2 is an incremental platform release that adds newcapabilities for users and developers. This

What is the NDK?The Android NDK is a toolset that lets you embed components that make use of native code in your Android applications. And

Android provides a powerful clipboard-based framework for copying and pasting. It supports both simple and complex data types, including

The Android multimedia framework includes support for encoding and decoding avariety of common media types, so that you can easily integrate

Near Field Communication (NFC) is a set of short-range wireless technologies, typically requiring a distance of 4cm or less. NFC operates a