Android screen adaptation

There are five main ways to adapt your Android screen:

1. Picture adaptation (mobile phones with different pixel densities, loading images under different resource files)

ldpi:320*240

mdpi:480*320

hdpi:800*480

xhdpi:1280*720

xxhdpi:1920*1080

If there is no picture on the phone with the current pixel density, go back and load a higher level picture

Pixel density: The pixel dpi that is currently distributed on an inch

Pixel density calculation: pixel density = number of diagonal/inches in resolution

ldpi	1dp=0.75px	160dp=120px	240px Half	320*240
mdpi	1dp=1px	160dp=160px	320px Half	480*320
hdpi	1dp=1.5px	160dp=240px	480px Half	800*480
xhdpi	1dp=2px	160dp=320px	640px Half	1280*720
xxhdpi	1dp=3px	160dp=480px	960px Half	1920*1080

2.dimens.xml distribution

For example: Personalize the xhdpi:

1. Create the "values-1280x752" folder

2. Defined in the Dimens.xml file

3. Layout adaptation (layout adaptation, different pixel density of the mobile phone, loading different resource folder layouts)

For example: Personalize the xhdpi:

1. Create the "layout-1280x752" folder

2. Define in the layout file

4.Java code adaptation (the width of the control is set according to the percentage of the screen width is high)

WindowManager WM =Getwindowmanager (); Displaymetrics Outmetrics=NewDisplaymetrics ();        Wm.getdefaultdisplay (). Getmetrics (Outmetrics); intwidth =Outmetrics.widthpixels; intHeight =Outmetrics.heightpixels; //The purpose of adding 0.5 is to round the operationLinearlayout.layoutparams Layoutparams =NewLinearlayout.layoutparams ((int) (Width * 0.5 + 0.5), (int) (Height * 0.5 + 0.5)); TextView TV=(TextView) Findviewbyid (r.id.tv); Tv.setlayoutparams (layoutparams);

5. Weight allocation (weight)

Android screen adaptation