Android监听电池状态实例代码

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网站的支持！