Android

This post is a note to remind myself how to manually flash Android firmware on a Nexus device. Step 1, download the firmware to your computer. I downloaded Android 5 from: http://www.droid-life.com/2014/11/13/download-android-5-0-ota-update-nexus-5-7-10-4/ Step 2, connect Nexus 7 to the computer. Mine runs Ubuntu 14.10, and I already downloaded Android SDK. Make sure that “Developer Options” is enabled. If it’s not, go to Settings -> About tablet. Then click on “Build Number” 7 times. ...

I just got this problem today when I opened an Android project with Android Studio. Basically, anywhere there’s a reference to R, for example R.layout.footer_view, Android Studio will complain that it cannot resolve symbol R. The fix is surprisingly easy. All I need to do was running Gradle clean and Gradle build. Ref: http://stackoverflow.com/questions/17054000/cannot-resolve-symbol-r-android-studio

The Eclipse IDE that comes bundle with Android Development Tools (ADT) crashes when run on my laptop running Fedora. The error message which logged to console is: # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x0000003cc2270061, pid=9653, tid=140330452297472 # # JRE version: Java(TM) SE Runtime Environment (7.0_55-b13) (build 1.7.0_55-b13) # Java VM: Java HotSpot(TM) 64-Bit Server VM (24.55-b03 mixed mode linux-amd64 compressed oops) # Problematic frame: # C [libsoup-2.4.so.1+0x70061] soup_session_feature_detach+0x11 # # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # Fortunately, there’s a way to fix this problem by opening ‘eclipse.ini’ file, in my case: ...

MIUI (1.7.22) uses Arial as the default font. If you hate it as I do, here is how to change it. I assume you have adb working. We are going to replace only 2 fonts - Arial.ttf and Arial-Bold.ttf. First, let’s back up the old fonts just in case thing didn’t go well as we want to. (I learned this the hard way, and keen to avoid it at all cost) ...