Timesrapse

Another one application for making photos with some given interval. Exciting.

But! Allows to make photos in the background or even with screen locked on Android 8+ (Q tested).

Requires Android SDK 26. Uses AlarmManager and Camera2API.

┌──────────────┐    ┌──────────────┐
│              │    │              │
│ MainActivity ├────► AlarmManager │
│              │    │              │
└────────────┬─┘    └─┬────────────┘
             │        │
           start     capture
             │        │
             │        │
       ┌─────▼────────▼────┐
       │                   │
       │ ForegroundService │
       │                   │
       └─────────┬─────────┘
                 │
                 │
       ┌─────────▼─────────┐
       │                   │
       │    Camera2API     │
       │                   │
       └───────────────────┘

Why?

All of the timelapse apps I have found on Google Play works like a standard camera app: some preview, some settings and some problems to work in the background.

I planned to left an Android phone alone, without internet, sometimes without power supply, for period longer than 2 months. I don't care about Instant gratification like Microsoft Hyperlapse or about filters like in Lapse It. In contrast, Framelapse Pro does not work in background on Android 8+.

Beautiful, isn't it?