How to view the battery usage settings in android?

Question

I want to view battery usage setting through application settings->about phone->Battery use

How to view this through application please help me

Answer 1

To show power usage information to the user, you can start activity using Intent.ACTION_POWER_USAGE_SUMMARY

Intent intentBatteryUsage = new Intent(Intent.ACTION_POWER_USAGE_SUMMARY);        
    startActivity(intentBatteryUsage);

Answer 2

@Tamil, to turn on/off Bluetooth, first u have to make object("mBTadapter") of bluetoothAdapter class, then call

mBTAdapter.enable();

or

mBTAdapter.disable();

programetically,,