Sample iobeam Android app
Using the iobeam Java Client Library
This is a basic sample app to illustrate how to send data to iobeam using the Java client library.
Here's what it looks like:
This app tracks the current battery level on your phone. Every time the battery level changes by more than 1%, the app uploads the timestamp and current level to iobeam.
All iobeam client library related code is in MainActivity.java
Before you start
First, you need a project_id, and project_token (with write-access) from a valid iobeam project. You can get these using our Command-line interface.
Next, find these lines in MainActivity.java, and update with your project_id and project_token. You also need to pick a device_id for your phone (must be globally unique and at least 16 characters long). E.g., "nerf-herder-1138".
/** Iobeam Parameters **/
private static final long PROJECT_ID = -1; // Your PROJECT_ID
private static final String PROJECT_TOKEN = null; // PROJECT_TOKEN (w/ write-access)
private static final String DEVICE_ID = null; // Specify your DEVICE_ID
(Note: We specify the device_id in this example for simplicity, but you can also allow the library to auto-generate the device_id for you. Please see our Java / Android client library docs for more.)
Compile, build, and run the app!
Where's the iobeam-specific code?
It's all in MainActivity.java.
Initialize the iobeam client library:
iobeam = new Iobeam.Builder(PROJECT_ID, PROJECT_TOKEN).saveIdToPath(path)
.setDeviceId(DEVICE_ID).build();
Define the data schema:
String[] columns = new String[]{"battery_level", "temperature", "voltage"};
iobeamBatch = new DataBatch(columns);
iobeam.trackDataBatch(iobeamBatch);
Capture a data point:
Map<String, Object> values = new HashMap<String, Object>();
values.put("battery_level", currentBatteryLevel);
values.put("temperature", ((double)temperature/10));
values.put("voltage", voltage);
iobeamBatch.add(values);
Send to the Iobeam API:
iobeam.sendAsync();
That's it!
Enjoy!