Android电源信息

[代码] PowerTestActivity

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001import android.app.Activity;

002import android.content.BroadcastReceiver;

003import android.content.Context;

004import android.content.Intent;

005import android.content.IntentFilter;

006import android.os.BatteryManager;

007import android.os.Bundle;

008import android.os.PowerManager;

009import android.view.View;

010import android.widget.CheckBox;

011import android.widget.TextView;

012  

013import java.text.DateFormat;

014import java.util.Date;

015  

016/**

017 * So you thought sync used up your battery life.

018 */

019public class PowerTestActivity extendsActivity {

020    TextView mLog;

021    DateFormat mDateFormat;

022    IntentFilter mFilter;

023    PowerManager.WakeLock mWakeLock;

024    SpinThread mThread;

025  

026    @Override

027    publicvoid onCreate(Bundle savedInstanceState) {

028        super.onCreate(savedInstanceState);

029  

030        // Set the layout for this activity.  You can find it

031        // in res/layout/hello_activity.xml

032        setContentView(R.layout.main);

033  

034        findViewById(R.id.checkbox).setOnClickListener(mClickListener);

035        mLog = (TextView)findViewById(R.id.log);

036  

037        mDateFormat = DateFormat.getInstance();

038  

039        mFilter =new IntentFilter();

040        mFilter.addAction(Intent.ACTION_BATTERY_CHANGED);

041        mFilter.addAction(Intent.ACTION_BATTERY_LOW);

042        mFilter.addAction(Intent.ACTION_BATTERY_OKAY);

043        mFilter.addAction(Intent.ACTION_POWER_CONNECTED);

044  

045        PowerManager pm = (PowerManager)getSystemService(POWER_SERVICE);

046        mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK,"BatteryWaster");

047        mWakeLock.setReferenceCounted(false);

048    }

049  

050    @Override

051    publicvoid onPause() {

052        stopRunning();

053    }

054  

055    View.OnClickListener mClickListener =new View.OnClickListener() {

056        publicvoid onClick(View v) {

057            CheckBox checkbox = (CheckBox)v;

058            if(checkbox.isChecked()) {

059                startRunning();

060            }else {

061                stopRunning();

062            }

063        }

064    };

065  

066    voidstartRunning() {

067        log("Start");

068        registerReceiver(mReceiver, mFilter);

069        mWakeLock.acquire();

070        if(mThread == null) {

071            mThread =new SpinThread();

072            mThread.start();

073        }

074    }

075  

076    voidstopRunning() {

077        log("Stop");

078        unregisterReceiver(mReceiver);

079        mWakeLock.release();

080        if(mThread != null) {

081            mThread.quit();

082            mThread =null;

083        }

084    }

085  

086    voidlog(String s) {

087        mLog.setText(mLog.getText() +"\n" + mDateFormat.format(newDate()) + ": " + s);

088    }

089  

090    BroadcastReceiver mReceiver =new BroadcastReceiver() {

091        publicvoid onReceive(Context context, Intent intent) {

092            StringBuffer sb =new StringBuffer();

093            String action = intent.getAction();

094            /*

095             * 如果捕捉到的action是ACTION_BATTERY_CHANGED， 就运行onBatteryInfoReceiver()

096             */

097            if(Intent.ACTION_BATTERY_CHANGED.equals(action)) {

098  

099                sb.append("\n当前电量:").append(intent.getIntExtra("level",0));

100                sb.append("\n电池电量:").append(intent.getIntExtra("scale",100));

101                // 电池伏数

102                sb.append("\n当前电压：").append(intent.getIntExtra("voltage",0));

103                // 电池温度

104                sb.append("\n当前温度：").append(

105                        intent.getIntExtra("temperature",0));

106                String BatteryStatus =null;

107                switch(intent.getIntExtra("status",

108                        BatteryManager.BATTERY_STATUS_UNKNOWN)) {

109                caseBatteryManager.BATTERY_STATUS_CHARGING:

110                    BatteryStatus ="充电状态";

111                    break;

112                caseBatteryManager.BATTERY_STATUS_DISCHARGING:

113                    BatteryStatus ="放电状态";

114                    break;

115                caseBatteryManager.BATTERY_STATUS_NOT_CHARGING:

116                    BatteryStatus ="未充电";

117                    break;

118                caseBatteryManager.BATTERY_STATUS_FULL:

119                    BatteryStatus ="充满电";

120                    break;

121                caseBatteryManager.BATTERY_STATUS_UNKNOWN:

122                    BatteryStatus ="未知道状态";

123                    break;

124                }

125                sb.append("\n当前状态：").append(BatteryStatus);

126                String BatteryStatus2 =null;

127                switch(intent.getIntExtra("plugged",

128                        BatteryManager.BATTERY_PLUGGED_AC)) {

129                caseBatteryManager.BATTERY_PLUGGED_AC:

130                    BatteryStatus2 ="AC充电";

131                    break;

132                caseBatteryManager.BATTERY_PLUGGED_USB:

133                    BatteryStatus2 ="USB充电";

134                    break;

135                }

136                sb.append("\n充电方式：").append(BatteryStatus2);

137                String BatteryTemp =null;

138                switch(intent.getIntExtra("health",

139                        BatteryManager.BATTERY_HEALTH_UNKNOWN)) {

140                caseBatteryManager.BATTERY_HEALTH_UNKNOWN:

141                    BatteryTemp ="未知错误";

142                    break;

143                caseBatteryManager.BATTERY_HEALTH_GOOD:

144                    BatteryTemp ="状态良好";

145                    break;

146                caseBatteryManager.BATTERY_HEALTH_DEAD:

147                    BatteryTemp ="电池没有电";

148                    break;

149                caseBatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:

150                    BatteryTemp ="电池电压过高";

151                    break;

152                caseBatteryManager.BATTERY_HEALTH_OVERHEAT:

153                    BatteryTemp ="电池过热";

154                    break;

155                }

156                sb.append("\n电池状态：").append(BatteryTemp);

157                log(sb.toString());

158            }

159        }

160    };

161  

162    classSpinThread extendsThread {

163        privateboolean mStop;

164  

165        publicvoid quit() {

166            synchronized(this) {

167                mStop =true;

168            }

169        }

170  

171        publicvoid run() {

172            while(true) {

173                synchronized(this) {

174                    if(mStop) {

175                        return;

176                    }

177                }

178            }

179        }

180    }

181}

[代码] main.xml

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01<?xml version="1.0"encoding="utf-8"?>

02<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

03    android:orientation="vertical"

04    android:layout_width="fill_parent"

05    android:layout_height="fill_parent"

06    >

07<CheckBox android:id="@+id/checkbox"

08        android:layout_width="fill_parent"

09        android:layout_height="wrap_content"

10        android:layout_marginLeft="25dp"

11        android:layout_marginTop="25dp"

12        android:textSize="18sp"

13        android:textColor="#ffffffff"

14        android:text="电源测试"

15        />

16  

17    <ScrollView android:id="@+id/scroll"

18        android:layout_width="fill_parent"

19        android:layout_height="0px"

20        android:layout_weight="1"

21        >

22        <TextView android:id="@+id/log"

23            android:layout_width="fill_parent"

24            android:layout_height="wrap_content"

25            android:layout_marginTop="25dp"

26            android:textSize="12sp"

27            android:textColor="#ffffffff"

28            />

29    </ScrollView>

30</LinearLayout>

[代码] AndroidManifest.xml

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01<?xml version="1.0"encoding="utf-8"?>

02<manifest xmlns:android="http://schemas.android.com/apk/res/android"

03      package="com.lenovo.android"

04      android:versionCode="1"

05      android:versionName="1.0">

06    <uses-sdk android:minSdkVersion="8"/>

07  

08    <application android:icon="@drawable/icon"android:label="@string/app_name">

09        <activity android:name=".PowerTestActivity"

10                  android:label="@string/app_name">

11            <intent-filter>

12                <action android:name="android.intent.action.MAIN"/>

13                <category android:name="android.intent.category.LAUNCHER"/>

14            </intent-filter>

15        </activity>

16          

17    </application>

18    <uses-permission android:name="android.permission.WAKE_LOCK"/>

19    <uses-permission android:name="android.permission.DEVICE_POWER"/>

20</manifest>