Scaling a Phonegap app for different Android screen sizes/densities?

Before we give up on phonegap lets try improve it. I was stuck until I solved it using this solution.

Change your viewport to this :

<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, target-densitydpi=medium-dpi, user-scalable=0" />

Ref : Phonegap Application text and layout too small

Just noticed I never answered this. The solution I used in the end was to use media queries to explicitly set font sizes and image assets based on the device size. Device testing showed this worked on all my target devices: iPhone, iPad, Android phones, Android 7" tablets, Android 10" tables. Hope it helps someone else.

For example:

/* Start with default styles for phone-sized devices */    p,li{        font-size: 0.9em;    }    h1{        font-size: 1.2em;    }    button{        width: 24px;        height: 12px;    }    button.nav{        background-image: url('img/phone/nav.png');    }@media only screen and (min-device-width : 768px) { /* 7" tablets */    p, li{        font-size: 1.3em !important;    }    h1{        font-size: 1.6em !important;    }    button{          width: 32px;          height: 16px;    }    button.nav{        background-image: url('img/tablet7/nav.png');    }}@media only screen and (min-device-width : 1024px) { /* 10" tablets and iPad */    p, li{        font-size: 1.5em !important;    }    h1{        font-size: 1.8em !important;    }    button{        width: 48px;        height: 24px;    }    button.nav{        background-image: url('img/tablet10/nav.png');    }}

Consider that target-densitydpi has been deprecated and removed from Webkit according to Pete LePage (https://plus.google.com/+GoogleChromeDevelopers/posts/BKHdSgQVFBB), I think a better approach is to use media queries to target high-dpi devices before dropping phonegap