安卓开发做一款可以实时查看sim卡信号已经属于4g还是5g并展示在软件上的app
时间: 2023-05-16 21:06:07 浏览: 328
可以使用 Android Telephony Manager API 来获取 SIM 卡的网络类型和信号强度,然后将其展示在应用程序中。以下是一个简单的示例代码:
```java
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
int networkType = telephonyManager.getNetworkType();
int signalStrength = telephonyManager.getSignalStrength().getLevel();
String networkTypeName = "";
switch (networkType) {
case TelephonyManager.NETWORK_TYPE_GPRS:
case TelephonyManager.NETWORK_TYPE_EDGE:
case TelephonyManager.NETWORK_TYPE_CDMA:
case TelephonyManager.NETWORK_TYPE_1xRTT:
case TelephonyManager.NETWORK_TYPE_IDEN:
networkTypeName = "2G";
break;
case TelephonyManager.NETWORK_TYPE_UMTS:
case TelephonyManager.NETWORK_TYPE_EVDO_0:
case TelephonyManager.NETWORK_TYPE_EVDO_A:
case TelephonyManager.NETWORK_TYPE_HSDPA:
case TelephonyManager.NETWORK_TYPE_HSUPA:
case TelephonyManager.NETWORK_TYPE_HSPA:
case TelephonyManager.NETWORK_TYPE_EVDO_B:
case TelephonyManager.NETWORK_TYPE_EHRPD:
case TelephonyManager.NETWORK_TYPE_HSPAP:
networkTypeName = "3G";
break;
case TelephonyManager.NETWORK_TYPE_LTE:
networkTypeName = "4G";
break;
case TelephonyManager.NETWORK_TYPE_NR:
networkTypeName = "5G";
break;
}
String signalStrengthText = "Signal strength: " + signalStrength + "/4";
String networkTypeText = "Network type: " + networkTypeName;
// 将 signalStrengthText 和 networkTypeText 显示在应用程序中
```
这段代码将获取当前 SIM 卡的网络类型和信号强度,并将其显示在应用程序中。注意,这只是一个简单的示例,实际应用程序可能需要更多的代码来处理错误和异常情况。
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