Epson BT-2000 Developers Guide - Page 163

Acquiring Battery Information

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9.2. Acquiring Battery Information Use the Filter intent broadcast by the operating system, and acquire the battery information. Usage examples are displayed below. ■ Register the receiver of the battery information broadcast by the app IntentFilter filter = new IntentFilter(); filter.addAction(Intent.ACTION_BATTERY_CHANGED); registerReceiver(mBroadcastReceiver, filter); ■ Acquire broadcast battery information Example: Acquiring the amount of power remaining, status, and installation status for battery A @Override public void onReceive(Context context, Intent intent){ int level_a = intent.getIntExtra(BatteryManager.EXTRA_LEVEL_A, 0); String status_a = intent.getStringExtra(BatteryManager.EXTRA_STATUS_A); boolean present_a = intent.getBooleanExtra(BatteryManager.EXTRA_PRESENT_A, false); MOVERIO Pro Developer's Guide (Rev.1.0) 159

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MOVERIO Pro Developer's Guide (Rev.1.0)
159
9.2.
Acquiring Battery Information
Use the Filter intent broadcast by the operating system, and acquire the battery information.
Usage examples are displayed below.
■ Register the receiver of the battery information broadcast by the app
IntentFilter filter =
new
IntentFilter();
filter.addAction(Intent.
ACTION_BATTERY_CHANGED
);
registerReceiver(
mBroadcastReceiver
, filter);
■ Acquire broadcast battery information
Example: Acquiring the amount of power remaining, status, and installation status for battery A
@Override
public
void
onReceive(Context context, Intent intent){
int
level_a = intent.getIntExtra(
BatteryManager.EXTRA_LEVEL_A
, 0);
String status_a = intent.getStringExtra(
BatteryManager.EXTRA_STATUS_A
);
boolean
present_a = intent.getBooleanExtra(
BatteryManager.EXTRA_PRESENT_A
,
false
);