Android mobile phone Resolution Test Program

TheProgramYou can test the resolution of a personal mobile phone device, which DPI level is used for development reference.

Main. xml

<? XML version = "1.0" encoding = "UTF-8"?> <Linearlayout xmlns: Android = "http://schemas.android.com/apk/res/android" Android: layout_width = "fill_parent" Android: layout_height = "fill_parent" Android: Orientation = "vertical"> <textview Android: id = "@ + ID/screensize" Android: layout_width = "fill_parent" Android: layout_height = "wrap_content" Android: text = "@ string/screensize"/> <edittext Android: id = "@ + ID/size" Android: layout_width = "fill_parent" Android: layout_height = "wrap_content" Android: inputtype = "numberdecimal"/> <buttonandroid: id = "@ + ID/submit" Android: layout_width = "fill_parent" Android: layout_height = "wrap_content" Android: text = "@ string/submit"/> <edittext Android: id = "@ + ID/showwidth" Android: layout_width = "fill_parent" Android: layout_height = "wrap_content" Android: inputtype = "text" Android: editable = "false"/> <edittextandroid: Id = "@ + ID/showdpi" Android: layout_width = "fill_parent" Android: layout_height = "wrap_content" Android: inputtype = "text" Android: editable = "false"/> </linearlayout>

String. xml

 
<? XML version = "1.0" encoding = "UTF-8"?> <Resources> <string name = "hello"> Hello world, androiddpi! </String> <string name = "app_name"> androiddpi </string> <string name = "screensize"> enter the screen size of the device: </string> <string name = "Submit"> OK </string> </resources>
 

JavaCode:

Package COM. shine. android; import android. app. activity; import android. OS. bundle; import android. util. displaymetrics; import android. view. view; import android. view. view. onclicklistener; import android. widget. button; import android. widget. edittext; public class androiddpi extends activity {@ override public void oncreate (bundle savedinstancestate) {super. oncreate (savedinstancestate); setcontentview (R. layout. main); Final edittext size = (edittext) findviewbyid (R. id. size); Final edittext showwidth = (edittext) findviewbyid (R. id. showwidth); Final edittext showdpi = (edittext) findviewbyid (R. id. showdpi); button submit = (button) findviewbyid (R. id. submit); Submit. setonclicklistener (New onclicklistener () {@ overridepublic void onclick (view v) {If (size. length () = 0) {size. settext ("Enter the size of the screen");} else {displaymetrics dm = new displaymetrics (); getwindowmanager (). getdefadisplay display (). getmetrics (DM); int width = DM. widthpixels; int Height = DM. heightpixels; float sizeint = float. parsefloat (size. gettext (). tostring (); showwidth. settext ("cell phone screen resolution:" + width + "*" + height); double DPI = math. SQRT (height * height + width * width)/sizeint; string dpitype = ""; if (DPI> 320) {dpitype = "belongs to xhdpi ";} else if (DPI> 240) {dpitype = "hdhdpi";} else if (DPI> 160) {dpitype = "mdmdpi";} else if (DPI> 120) {dpitype = "ldpi";} showdpi. settext ("cell phone DPI:" + DPI + "," + dpitype );}}});}}

Display result: