Android

// Obtain the screen width displaymetrics = getresources (). getdisplaymetrics (); screenwidth = displaymetrics. widthpixels; // obtain the height rect = new rect (); window = getwindow (); mimageview of the title bar and status bar.

Method 1:Call after startactivity () or finish:(Activity) mcontext). overridependingtransition (0, 0 ); Method 2:In some special cases, method 1 cannot be implemented.For example, you have set properties for intent:Intent. addflags (intent.

Main. XML is as follows: Listviewitem. XML is as follows:  

1 viewstub usageReferences:Here are a series of practical skills.Http://blog.csdn.net/hitlion2008/article/details/6737537Chinese API:Http://www.iteedu.com/handset/android/androidcnapi5/42.php   2. Use the system color: Android: textcolor = "@

mainactivity: Package CN. testforeground; import Java. util. list; import android. OS. bundle; import android. app. activity; import android. app. activitymanager; import android. app. activitymanager. runningtaskinfo; import android. content.

mainactivity: Package CN. testservice1; import android. OS. bundle; import android. view. view; import android. view. view. onclicklistener; import android. widget. button; import android. app. activity; import android. content. intent;/*** demo

Mainactivity is as follows: Package cn. c; import android. OS. bundle; import android. app. activity; import android. view. menu; // The first test // The output result is as follows: // call onInterceptTouchEvent () in MyFrameLayout //

Package com. testbitmapscale; import java. io. file; import java. io. fileInputStream; import java. io. fileOutputStream; import java. io. IOException; import java. io. inputStream; import java. util. iterator; import com. testbitmapscale. r.

Package com. example. testhandler; import android. OS. bundle; import android. OS. handler; import android. OS. message; import android. app. activity; // Handler common methods: // 1 post () // 2 postDelayed () // 3 sendMessage () // 4

First, let's take a look at the main usage of android phones:Obviously, most of the electricity is consumed by network connections, GPS, and sensors. In short, it consumes a lot of power in the following situations:1. Transmission of large data

MainActivity is as follows: Package c. c; import android.net. uri; import android. OS. bundle; import android. provider. mediaStore; import android. view. view; import android. view. view. onClickListener; import android. widget. button; import

MainActivity is as follows: Package CN. dragtest; import android. app. activity; import android. graphics. rect; import android. OS. bundle; import android. util. displaymetrics; import android. view. motionevent; import android. view. view; import

// Use BitmapFactory to generate Bitmap// Note that this method only generates Bitmap, so the returned value is a Bitmap.// Operations on Bitmap objects are not involved, such as rotating and compressing Bitmap objects.// The following are four

MainActivity is as follows: Package cn. testhomekey; import android. OS. bundle; import android. app. activity; import android. content. intent; import android. content. intentFilter;/*** Demo Description: * The HOME and RECENT_APPS keys of the

MainActivity is as follows: Package CN. testprogressdialog; import android. app. activity; import android. app. dialog; import android. content. context; import android. content. dialoginterface; import android. content. dialoginterface.

MainActivity is as follows: Package CN. testscrollview; import android. OS. bundle; import android. view. motionevent; import android. view. view; import android. view. view. ontouchlistener; import android. widget. scrollview; import android. app.

MainActivity is as follows: Package cn. testfont; import android. OS. bundle; import android. widget. textView; import android. app. activity; import android. graphics. typeface;/*** Demo Description: * use the TTF font file text display effect **

MainActivity is as follows: Package cc. testtipmessage1; import android. OS. bundle; import android. widget. imageView; import android. app. activity; import android. graphics. bitmap; import android. graphics. canvas; import android. graphics.

The following are the clients: Mainactivity is as follows: Package cn.com. remoteServiceClient; import com.cn. aidl. IRemoteQuery; import android. app. activity; import android. content. componentName; import android. content. intent; import android.