I wanted to calculate the remaining hours of battery and subsystem as talk time, websurfing, audio playback, video playback and standby.
I used reflection to get private class com.android.internal.os.PowerProfile and android.os.BatteryStats.
I followed Android's battery setting http://netmite.com/android/mydroid/donut/packages/apps/Settings/src/com/android/settings/fuelgauge/PowerUsageSummary.java
to get remaining hours of battery
with method:
long computeBatteryRealtime(long curTime, int which);
with:
curTime = SystemClock.elapsedRealtime() * 1000;
which = STATS_UNPLUGGED
But the return value was wrong, a few minutes. Do I use this method right ?
