JavaScript+Phonegap+Android: screen.width returns bad (almost random) values

问题

After launching app with "deviceready" event, my Phonegap app on Android returns false screen.width (window.innerWidth is the same) values on ZTE Blade (native 800px). I get width values like 320, 533 or 787 px, sometimes different values within one app instance (launch) when asking multiple times...

I have android:screenOrientation="landscape" in my AndroidManifest.xml. Using Phonegap/Cordova 1.8.1 in Eclipse (Indigo).

Some sample values of screen.width:

in index.html

• before document.addEventListener+"deviceready": 320
• just after "deviceready": 320

then redirect three times (change window.location to different HTML file) because of 2 splash-screens and finally land to main.html. I include my .js code in every file just for debugging, and get 3 console.logs:

1. 320
2. 787
3. 787

Very strange...

回答1:

There's a comprehensive article (+ comparison tables of different values) that you should read: http://tripleodeon.com/2011/12/first-understand-your-screen/

Hope this helps with your issue.

来源：https://stackoverflow.com/questions/11524669/javascriptphonegapandroid-screen-width-returns-bad-almost-random-values