Get Phone Screen Displaymetrics property method

First of all, there is a point to declare that, in fact, in Android, the canvas is the height of the width of the screen is actually high.

As a result, there are many ways to get a high screen width:

1.

Java code

WindowManager WindowManager = Getwindowmanager ();

Display display = Windowmanager.getdefaultdisplay ();

ScreenWidth = Display.getwidth ();

ScreenHeight = Display.getheight ();

2.

Java code

Displaymetrics DM = new displaymetrics ();

this. Getwindowmanager (). Getdefaultdisplay (). Getmetrics (DM);//this refers to the current activity

ScreenWidth =dm.widthpixels;

ScreenHeight =dm.heightpixels;

Both of these methods are still in the 0 state when the screen is not displayed, that is, after the Setcontentview call is not valid.

3.

It can also be obtained by canvas in OnDraw.

Java Code screenwidth =canvas.getwidth (); ScreenHeight =canvas.getheight ();

And the view of the aspect is what most people think of the canvas of the high-width, in fact, he refers to the taskbar and the status bar, in addition to the high-width, mainly the following methods:

1.

Java code

Viewwidth=this. getwidth ();

viewheight=this. getheight ();

2. Rewrite the view's onsizechanged, the method will be called after OnCreate, OnDraw before the

Java code protected voidOnsizechanged ( intW intH intOLDW, intOLDH) {viewheight=h; Viewwidth=w; Super. onsizechanged (W, H, OLDW, OLDH); }

High and wide width of taskbar, status bar I'm not sure yet, but looking from the Internet:

Reference Frameworks/core/res/values/themes.xml
<item name= "Windowtitlesize" >25dip</item>
Frameworks/core/res/values/dimens.xml
<dimen name= "Status_bar_height" >25dip</dimen>

If you want to get a high width in an activity, it's best to put it in the onsizechanged for more insurance.

The above is a summary of my high-width Android, if there are errors in the place, welcome to discuss the message.

In addition, there are some settings for the screen display:

Set to Untitled

Java code requestwindowfeature (window.feature_no_title);

Set to full-screen mode GetWindow (). setflags

Java code

GetWindow (). SetFlags (Windowmanager.layoutparams.flag_fullscreen,windowmanager.layoutparams.flag_fullscreen);

Set to horizontal screen

Java code

Setrequesteorientation (Activityinfo.screen_orientation_ladscape);

(Transferred from: http://blog.csdn.net/yiyaaixuexi/article/details/6233005)