Android Open Source - android_device Battery Info Fragment

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The source code is released under:

[Apache License](http://www.apache.org/licenses/): Version 2.0, January 2004 =============== ## TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION ## ### 1. Definitions. ### "License" sha...

Java Source Code

/*
 * =================================================================================================
 *                Copyright (C) 2013 - 2014 Martin Albedinsky [Wolf-ITechnologies]
 * =================================================================================================
 *         Licensed under the Apache License, Version 2.0 or later (further "License" only).
 * -------------------------------------------------------------------------------------------------
 * You may use this file only in compliance with the License. More details and copy of this License
 * you may obtain at/*from   ww  w.ja  va  2 s .c o m*/
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * You can redistribute, modify or publish any part of the code written within this file but as it
 * is described in the License, the software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES or CONDITIONS OF ANY KIND.
 *
 * See the License for the specific language governing permissions and limitations under the License.
 * =================================================================================================
 */
package com.wit.android.device.examples.fragment;

import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.view.View;
import android.widget.ListView;
import android.widget.TextView;

import com.wit.android.device.examples.R;
import com.wit.android.device.examples.adapter.BatteryInfoAdapter;
import com.wit.android.device.examples.model.BatteryInfo;
import com.wit.android.device.Battery;
import com.wit.android.examples.libs.fragment.annotation.ExActionBarOptions;
import com.wit.android.examples.libs.fragment.annotation.ExContentView;

/**
 * <p>
 * Description.
 * </p>
 *
 * @author Martin Albedinsky
 */
@ExContentView(R.layout.fragment_battery_info)
@ExActionBarOptions(title = R.string.Navigation_Label_BatteryInfo)
public class BatteryInfoFragment extends BaseDeviceFragment {

  /**
   * Log TAG.
   */
  // private static final String TAG = BatteryInfoFragment.class.getSimpleName();

  /**
   *
   */
  private final BatteryListener BATTERY_LISTENER = new BatteryListener();

  /**
   *
   */
  private BatteryInfoAdapter mAdapter;

  /**
   *
   */
  private TextView mTechnology, mVoltage, mTemperature;

  /**
   *
   */
  private boolean bRegisterStatusReceiver = true;

  /**
   *
   */
  private boolean bRegisterHealthReceiver = false;

  /**
   *
   */
  private boolean bRegisterPluggedReceiver = false;

  /**
   */
  @Override
  public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    this.mTechnology = (TextView) view.findViewById(R.id.fragment_battery_info_text_view_technology);
    this.mVoltage = (TextView) view.findViewById(R.id.fragment_battery_info_text_view_voltage);
    this.mTemperature = (TextView) view.findViewById(R.id.fragment_battery_info_text_view_temperature);

    // Set up list view and adapter.
    if (mAdapter == null) {
      mAdapter = new BatteryInfoAdapter(getActivity());
    }
    ((ListView) view.findViewById(android.R.id.list)).setAdapter(mAdapter);

    final Battery battery = getAndroidDevice().getBattery();
    // Register battery global callback.
    battery.registerOnBatteryListener(BATTERY_LISTENER);

    // Register all battery broadcast receivers to handle all battery updates.
    final Context context = getActivity();
    if (bRegisterStatusReceiver) {
      battery.registerBatteryReceiver(context, Battery.RECEIVER_BATTERY_STATUS);
    }
    if (bRegisterHealthReceiver) {
      battery.registerBatteryReceiver(context, Battery.RECEIVER_BATTERY_HEALTH);
    }
    if (bRegisterPluggedReceiver) {
      battery.registerBatteryReceiver(context, Battery.RECEIVER_BATTERY_PLUGGED_STATE);
    }
  }

  /**
   */
  @Override
  public void onDestroyView() {
    super.onDestroyView();
    final Battery battery = getAndroidDevice().getBattery();
    // UnRegister battery global callback.
    battery.unregisterOnBatteryListener(BATTERY_LISTENER);

    // UnRegister all battery broadcast receivers.
    final Context context = getActivity();
    if (bRegisterStatusReceiver) {
      battery.unregisterBatteryReceiver(context, Battery.RECEIVER_BATTERY_STATUS);
    }
    if (bRegisterHealthReceiver) {
      battery.unregisterBatteryReceiver(context, Battery.RECEIVER_BATTERY_HEALTH);
    }
    if (bRegisterPluggedReceiver) {
      battery.unregisterBatteryReceiver(context, Battery.RECEIVER_BATTERY_PLUGGED_STATE);
    }
  }

  /**
   * @param battery
   */
  private void dispatchBatteryStatusChange(Battery battery) {
    if (mAdapter != null) {
      mAdapter.dispatchNewInfo(new BatteryInfo(battery));
    }
    // Update "static" info.
    // Note that technology isn't updated, it remains same
    // so it shouldn't be updated each time.
    mTechnology.setText(battery.getTechnology().originalName);
    mVoltage.setText(getString(
        R.string.Battery_Info_Label_Voltage_format,
        battery.getVoltage()
    ));
    mTemperature.setText(getString(
        R.string.Battery_Info_Label_Temperature_format,
        battery.getTemperature()
    ));
  }

  /**
   * @param plugged
   */
  private void dispatchBatteryPluggedStateChange(boolean plugged) {
    if (mAdapter != null) {
      final BatteryInfo info = new BatteryInfo();
      info.setChange(plugged ?
          getString(R.string.Battery_Info_Change_PluggedState_plugged) :
          getString(R.string.Battery_Info_Change_PluggedState_unplugged)
      );
      mAdapter.dispatchNewInfo(info);
    }
  }

  /**
   * @param low
   */
  private void dispatchBatteryHealthChange(boolean low) {
    if (mAdapter != null) {
      final BatteryInfo info = new BatteryInfo();
      info.setChange(low ?
          getString(R.string.Battery_Info_Change_Health_OkLow) :
          getString(R.string.Battery_Info_Change_Health_LowOk)
      );
      mAdapter.dispatchNewInfo(info);
    }
  }

  /**
   *
   */
  private class BatteryListener extends Battery.SimpleListener {

    /**
     */
    @Override
    public void onPluggedStateChange(@NonNull Battery battery, boolean plugged, @NonNull Context context) {
      dispatchBatteryPluggedStateChange(plugged);
    }

    @Override
    public void onHealthChange(@NonNull Battery battery, boolean isLow, @NonNull Context context) {
      dispatchBatteryHealthChange(isLow);
    }

    /**
     */
    @Override
    public void onStatusChange(@NonNull Battery battery, @NonNull Context context) {
      dispatchBatteryStatusChange(battery);
    }
  }
}

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