该功能由BatteryService来控制
定位到:frameworks\base\services\core\java\com\android\server\BatteryService.java
private void shutdownIfOverTempLocked() {
// shut down gracefully if temperature is too high (> 68.0C by default)
// wait until the system has booted before attempting to display the
// shutdown dialog.
if (mBatteryProps.batteryTemperature > mShutdownBatteryTemperature) {
mHandler.post(new Runnable() {
@Override
public void run() {
if (ActivityManagerNative.isSystemReady()) {
Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN);
intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivityAsUser(intent, UserHandle.CURRENT);
}
}
});
}
}
如当温度高于68度或是低于-5度时要求手机自动关机,则修改成:
private void shutdownIfOverTempLocked() {
// shut down gracefully if temperature is too high (> 68.0C by default)
// wait until the system has booted before attempting to display the
// shutdown dialog.
if (mBatteryProps.batteryTemperature > 680 || mBatteryProps.batteryTemperature<-50) {
mHandler.post(new Runnable() {
@Override
public void run() {
if (ActivityManagerNative.isSystemReady()) {
Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN);
intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivityAsUser(intent, UserHandle.CURRENT);
}
}
});
}
}