The LG G4 has a lot to prove, given that last year’s LG G3 was among the best smartphones of 2014. The Global Mobile Awards given out during the time of MWC 2015 named it the Smartphone of The Year (SOTY?) alongside the iPhone 6, and at the time of its release it packed the very best in Android specifications, from the powerful Snapdragon 801 to the class-leading 1440p display. The camera, battery life and feature set were also deemed...
Windows Phone 7 Facts: .xap to Replace .cab
XDA member and moderator Da_G has showed us some interesting facts about Windows Phone 7 in the WP7 Development and Hacking section. In the following weeks, we will be covering the more technical side of the currently unreleased OS by Microsoft. We’ll try to make it as easy to read as possible, so get yourself a cup of coffee, sit back, and read!
Most of you probably know about the .cab files. We’ll be talking about the Cab file used for Windows Mobile. Cab files are nothing more than installation packages that copy the files and registry edits from the package to the desired folder on your device. These ‘cabinet’ files, which originally were called ‘Diamonds’, were used since the very first Windows Mobile devices.
Well these files seem to get banished from the coming Windows Phone 7, internally still called Windows Mobile 7. The new files to replace the cabinets are called ‘.xap’ files. So what are the exact changes between the two files?
First of all, .xap files are nothing more than renamed .zip files. There are a number of possible .xml files that could be included inside the .xap. These determine things like required security access level, to tell the system which .dll contains the main() for the application, and more setup options. Initially, xap files will only be available for deployment through the Marketplace.
Because of the sometimes bad experiences from users about laggy and slow Stock ROMs, Microsoft added some very strict requirements for preloaded apps:
Originally posted by Da_G
Preloaded App Requirements (which will be distributed as .xap) as follows:
- Maximum of 6 preloaded applications on the device, not to exceed 60MB
- All preloaded apps must pass Marketplace submission process (some extended APIs are available to OEM/MO so the process is slightly relaxed in that regard)
- The application(s) and all future updates must be free of charge.
- The apps must launch without dependency on network availability.
- The apps must persist through a “hard reset”.
- The apps must be updatable and revocable (!!!!) through the Marketplace.
- The apps must notify the user at first launch of any capabilities to be utilized and get user consent (to access compass, accelerometer, network, etc.)
Most of the requirements aren’t bad at all for the end-user, though I think the OEMs are probably not very happy with these requirements.
Want something on the XDA Portal? Send us a tip!
You've probably seen or installed modified applications, be it a patched dialer for your resolution or a custom WhatsApp version with added features. How do developers do that, though? A lot of the time, the applications' source code isn't even available, so how does it all work? We'll see that first, then take a look at a new tool that aims to make the process much easier, and finally compare it to the popular Xposed framework to see how they...
With more and more OEMs ditching SD cards on their flagships, cloud storage is becoming even more important in the mobile world. Services like Dropbox and Google Drive have already become widely adopted by the majority of smartphone users, but is cloud storage ready to replace external storage? Let us know your thoughts below.