Android监听电池状态实例代码

前端技术 2023/09/02 Android

如果要监听电池的状态改变，需要动态注册：android.intent.action.BATTERY_CHANGED，收到Action后可以根据对应的Key获取你需要的信息，更详细信息可以参考以下例子中的BatteryChangedReceiver类

具体代码如下所示：

package com.example.charginganimation;
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.view.View;
public class MainActivity extends Activity {
private CustomClipLoading ccl;
private BatteryChangedReceiver receiver = new BatteryChangedReceiver();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
registerReceiver(receiver, getFilter());
}
private IntentFilter getFilter() {
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_BATTERY_CHANGED);
filter.addAction(Intent.ACTION_BATTERY_LOW);
filter.addAction(Intent.ACTION_BATTERY_OKAY);
return filter;
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
unregisterReceiver(receiver);
super.onDestroy();
}
class BatteryChangedReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
final String action = intent.getAction();
if (action.equalsIgnoreCase(Intent.ACTION_BATTERY_CHANGED)) {
System.out
.println(\"BatteryChangedReceiver BATTERY_CHANGED_ACTION---\");
// 当前电池的电压
int voltage = intent.getIntExtra(BatteryManager.EXTRA_VOLTAGE,
-1);
// 电池的健康状态
int health = intent
.getIntExtra(BatteryManager.EXTRA_HEALTH, -1);
switch (health) {
case BatteryManager.BATTERY_HEALTH_COLD:
System.out.println(\"BATTERY_HEALTH_COLD\");
break;
case BatteryManager.BATTERY_HEALTH_DEAD:
System.out.println(\"BATTERY_HEALTH_DEAD \");
break;
case BatteryManager.BATTERY_HEALTH_GOOD:
System.out.println(\"BATTERY_HEALTH_GOOD\");
break;
case BatteryManager.BATTERY_HEALTH_OVERHEAT:
System.out.println(\"BATTERY_HEALTH_OVERHEAT\");
break;
case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:
System.out.println(\"BATTERY_HEALTH_COLD\");
break;
case BatteryManager.BATTERY_HEALTH_UNKNOWN:
System.out.println(\"BATTERY_HEALTH_UNKNOWN\");
break;
case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:
System.out.println(\"BATTERY_HEALTH_UNSPECIFIED_FAILURE\");
break;
default:
break;
}
// 电池当前的电量, 它介于0和 EXTRA_SCALE之间
int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
// 电池电量的最大值
int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
// 当前手机使用的是哪里的电源
int pluged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED,
-1);
switch (pluged) {
case BatteryManager.BATTERY_PLUGGED_AC:
// 电源是AC charger.[应该是指充电器]
System.out.println(\"BATTERY_PLUGGED_AC\");
break;
case BatteryManager.BATTERY_PLUGGED_USB:
// 电源是USB port
System.out.println(\"BATTERY_PLUGGED_USB \");
break;
default:
break;
}
int status = intent
.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
switch (status) {
case BatteryManager.BATTERY_STATUS_CHARGING:
// 正在充电
System.out.println(\"BATTERY_STATUS_CHARGING \");
break;
case BatteryManager.BATTERY_STATUS_DISCHARGING:
System.out.println(\"BATTERY_STATUS_DISCHARGING \");
break;
case BatteryManager.BATTERY_STATUS_FULL:
// 充满
System.out.println(\"BATTERY_STATUS_FULL \");
break;
case BatteryManager.BATTERY_STATUS_NOT_CHARGING:
// 没有充电
System.out.println(\"BATTERY_STATUS_NOT_CHARGING \");
break;
case BatteryManager.BATTERY_STATUS_UNKNOWN:
// 未知状态
System.out.println(\"BATTERY_STATUS_UNKNOWN \");
break;
default:
break;
}
// 电池使用的技术。比如，对于锂电池是Li-ion
String technology = intent
.getStringExtra(BatteryManager.EXTRA_TECHNOLOGY);
// 当前电池的温度
int temperature = intent.getIntExtra(
BatteryManager.EXTRA_TEMPERATURE, -1);
System.out.println(\"voltage = \" + voltage + \" technology = \"
+ technology + \" temperature = \" + temperature
+ \" level = \" + level + \" scale = \" + scale);
} else if (action.equalsIgnoreCase(Intent.ACTION_BATTERY_LOW)) {
// 表示当前电池电量低
System.out
.println(\"BatteryChangedReceiver ACTION_BATTERY_LOW---\");
} else if (action.equalsIgnoreCase(Intent.ACTION_BATTERY_OKAY)) {
// 表示当前电池已经从电量低恢复为正常
System.out
.println(\"BatteryChangedReceiver ACTION_BATTERY_OKAY---\");
}
}
}
}

获取apk和版本信息

private int getVerCode(Context context) {
int verCode = -1;
try {
verCode = context.getPackageManager().getPackageInfo(
\"com.example.charginganimation\", 0).versionCode;
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return verCode;
}
private String getVerName(Context context) {
String verName = \"\";
try {
verName = context.getPackageManager().getPackageInfo(
\"com.example.charginganimation\", 0).versionName;
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return verName;
}

以上代码内容是小编给大家介绍的android监听电池状态的实例代码，本文写的不好还请见谅，有好的意见欢迎给小编留言，我会及时给大家沟通的，谢谢大家一直以来对phpstudy网站的支持！

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