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In order to generate the notifications i need to know about how to generate the low battery and low memory interrupts programmatically. Can any one please provide your suggestions.I am aware of Intents.
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With the Android Emulator's Extended Controls, it's now possible to set the battery level with a GUI slider called "Charge Level." To access this, start the emulator. Then click the "..." at the bottom of the settings panel (which hovers to the right of the emulator). The Charge Level slider goes from 0 to 100%.
The simplest way to simulate a battery is with a resistor. This works fine in cases where the charger is a series resistor. The resistor that simulates the battery sinks the charge current, and you can measure the voltage drop across the resistor to calculate the charge current.
To trigger your onTrimMemory callbacks:
adb shell am send-trim-memory <process-name> <level>
e.g. adb shell am send-trim-memory com.example.app MODERATE
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Low memory can also be simulated using Background process limit under the device developer options.
Go to Settings > Developer options. Under the app section change the Background process limit to No background processes
Now your activity will be killed every time you switch to another app. Useful for testing state saving and state restoration.
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yes, this api triggers the same callback you would get if you registered a context to ComponentCallback2, specifically the ComponentCallback2#onTrimMemory this wasn't mentioned here, so I thought I'd make it clear. The syntax for this command is:
am send-trim-memory [--user <USER_ID>] <PROCESS> [HIDDEN|RUNNING_MODERATE|BACKGROUND|RUNNING_LOW|MODERATE|RUNNING_CRITICAL|COMPLETE]
Note: this command is only available on devices running Marshmallow+
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On the Android Emulator you can set the power status by connecting to the Emulator console and using the power command.
As far as low memory goes, you just need to make sure that your application can handle being killed without warning when it is in the background. Testing this is one of the very few cases that actually call for a Task Manager on Android, or if you're running Android 2.2 you can kill applications via Settings.
There are ways of reducing the memory available to applications but I think they're unnecessary.
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To simulate low Battery warning, try this command in the way answered by Frank:
power capacity 10 // It will set the battery level into 10%
For low Memory:
ulimit -Sv 15000 //The current memory limit will set to 15000 Kb
You can use the emulator menu is shown on my blog posting. Just telnet to localhost on the port of your emulator (default is 5554) and then type help. Follow the instructions from there!
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