1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.IPowerManager;
import android.os.Message;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.text.format.DateUtils;
import android.widget.TextView;
import com.android.internal.app.IBatteryStats;
public class BatteryInfo extends Activity {
private TextView mStatus;
private TextView mPower;
private TextView mLevel;
private TextView mScale;
private TextView mHealth;
private TextView mVoltage;
private TextView mTemperature;
private TextView mTechnology;
private TextView mUptime;
private IBatteryStats mBatteryStats;
private IPowerManager mScreenStats;
private static final int EVENT_TICK = 1;
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case EVENT_TICK:
updateBatteryStats();
sendEmptyMessageDelayed(EVENT_TICK, 1000);
break;
}
}
};
/**
* Format a number of tenths-units as a decimal string without using a
* conversion to float. E.g. 347 -> "34.7"
*/
private final String tenthsToFixedString(int x) {
int tens = x / 10;
return Integer.toString(tens) + "." + (x - 10 * tens);
}
/**
*Listens for intent broadcasts
*/
private IntentFilter mIntentFilter;
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {
int plugType = intent.getIntExtra("plugged", 0);
mLevel.setText("" + intent.getIntExtra("level", 0));
mScale.setText("" + intent.getIntExtra("scale", 0));
mVoltage.setText("" + intent.getIntExtra("voltage", 0) + " "
+ getString(R.string.battery_info_voltage_units));
mTemperature.setText("" + tenthsToFixedString(intent.getIntExtra("temperature", 0))
+ getString(R.string.battery_info_temperature_units));
mTechnology.setText("" + intent.getStringExtra("technology"));
int status = intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN);
String statusString;
if (status == BatteryManager.BATTERY_STATUS_CHARGING) {
statusString = getString(R.string.battery_info_status_charging);
if (plugType > 0) {
statusString = statusString + " " + getString(
(plugType == BatteryManager.BATTERY_PLUGGED_AC)
? R.string.battery_info_status_charging_ac
: R.string.battery_info_status_charging_usb);
}
} else if (status == BatteryManager.BATTERY_STATUS_DISCHARGING) {
statusString = getString(R.string.battery_info_status_discharging);
} else if (status == BatteryManager.BATTERY_STATUS_NOT_CHARGING) {
statusString = getString(R.string.battery_info_status_not_charging);
} else if (status == BatteryManager.BATTERY_STATUS_FULL) {
statusString = getString(R.string.battery_info_status_full);
} else {
statusString = getString(R.string.battery_info_status_unknown);
}
mStatus.setText(statusString);
switch (plugType) {
case 0:
mPower.setText(getString(R.string.battery_info_power_unplugged));
break;
case BatteryManager.BATTERY_PLUGGED_AC:
mPower.setText(getString(R.string.battery_info_power_ac));
break;
case BatteryManager.BATTERY_PLUGGED_USB:
mPower.setText(getString(R.string.battery_info_power_usb));
break;
case (BatteryManager.BATTERY_PLUGGED_AC|BatteryManager.BATTERY_PLUGGED_USB):
mPower.setText(getString(R.string.battery_info_power_ac_usb));
break;
default:
mPower.setText(getString(R.string.battery_info_power_unknown));
break;
}
int health = intent.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN);
String healthString;
if (health == BatteryManager.BATTERY_HEALTH_GOOD) {
healthString = getString(R.string.battery_info_health_good);
} else if (health == BatteryManager.BATTERY_HEALTH_OVERHEAT) {
healthString = getString(R.string.battery_info_health_overheat);
} else if (health == BatteryManager.BATTERY_HEALTH_DEAD) {
healthString = getString(R.string.battery_info_health_dead);
} else if (health == BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE) {
healthString = getString(R.string.battery_info_health_over_voltage);
} else if (health == BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE) {
healthString = getString(R.string.battery_info_health_unspecified_failure);
} else {
healthString = getString(R.string.battery_info_health_unknown);
}
mHealth.setText(healthString);
}
}
};
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.battery_info);
// create the IntentFilter that will be used to listen
// to battery status broadcasts
mIntentFilter = new IntentFilter();
mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
}
@Override
public void onResume() {
super.onResume();
mStatus = (TextView)findViewById(R.id.status);
mPower = (TextView)findViewById(R.id.power);
mLevel = (TextView)findViewById(R.id.level);
mScale = (TextView)findViewById(R.id.scale);
mHealth = (TextView)findViewById(R.id.health);
mTechnology = (TextView)findViewById(R.id.technology);
mVoltage = (TextView)findViewById(R.id.voltage);
mTemperature = (TextView)findViewById(R.id.temperature);
mUptime = (TextView) findViewById(R.id.uptime);
// Get awake time plugged in and on battery
mBatteryStats = IBatteryStats.Stub.asInterface(ServiceManager.getService("batteryinfo"));
mScreenStats = IPowerManager.Stub.asInterface(ServiceManager.getService(POWER_SERVICE));
mHandler.sendEmptyMessageDelayed(EVENT_TICK, 1000);
registerReceiver(mIntentReceiver, mIntentFilter);
}
@Override
public void onPause() {
super.onPause();
mHandler.removeMessages(EVENT_TICK);
// we are no longer on the screen stop the observers
unregisterReceiver(mIntentReceiver);
}
private void updateBatteryStats() {
long uptime = SystemClock.elapsedRealtime();
mUptime.setText(DateUtils.formatElapsedTime(uptime / 1000));
}
}
|
