Android 获取4G信号强度的方法
仅备份
package com.ztl.monitor4g;
import android.annotation.SuppressLint;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Build;
import android.os.IBinder;
import android.os.Message;
import android.telephony.CellInfo;
import android.telephony.CellInfoLte;
import android.telephony.PhoneStateListener;
import android.telephony.ServiceState;
import android.telephony.SignalStrength;
import android.telephony.TelephonyManager;
import android.util.Log;
import androidx.annotation.RequiresApi;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Stack;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import ZtlApi.ZtlManager;
public class MainService extends Service {
private static final String TAG = "MainService";
public static String ver = "20201121";
public static MainService Instatnce = null;
TelephonyManager mTelephonyManager;
MyPhoneStateListener myListener;
public MainService() {
Log.e("MainService()","MainService() 被调用");
Instatnce = this;
}
@Override
public void onCreate(){
Log.e(TAG, "onCreate is call. ver:" + ver);
ZtlManager.GetInstance().setContext(this);
mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
if( Build.VERSION.SDK_INT <25 )
{
myListener = new MyPhoneStateListener();//5.1只能用这个
mTelephonyManager.listen(null, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);
mTelephonyManager.listen(myListener, PhoneStateListener.LISTEN_NONE);
mTelephonyManager.listen(myListener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);
}else{
//7.1 这个才是对的 5.1返回空
new Thread(new Runnable() {
@Override
public void run() {
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
while (true){
@SuppressLint("MissingPermission") List cellInfoList = tm.getAllCellInfo();
if(cellInfoList != null){
for (CellInfo cellInfo : cellInfoList)
{
if (cellInfo instanceof CellInfoLte)
{
//cast to CellInfoLte and call all the CellInfoLte methods you need
int dbm = ((CellInfoLte)cellInfo).getCellSignalStrength().getDbm();
int asu = ((CellInfoLte)cellInfo).getCellSignalStrength().getAsuLevel();
String provider = getProvider();
String celluarType = getCellularType();
String logTxt = String.format("%s %s dbm:%d asu:%d \n", provider, celluarType, dbm, asu);
logFile(logTxt, true);
Log.i("mb_signal info",provider + " " + celluarType+ " dbm:" + dbm +" asu:" + asu);
break;
}
}
}
try {
Thread.sleep(1000 );
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
}
}
@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}
@Override
public void onDestroy() {
super.onDestroy();
}
//输出调试文本
public static void logFile(String txt, boolean genDate) {
String final_txt = "";
if (genDate) {
SimpleDateFormat dateformat = new SimpleDateFormat("[yyyy-MM-dd HH:mm:ss]");
String dateStr = dateformat.format(System.currentTimeMillis());
final_txt = dateStr;
}
try {
FileOutputStream outSTr = new FileOutputStream(new File("/sdcard/Download/4glog.txt"), true);
BufferedOutputStream Buff = new BufferedOutputStream(outSTr);
Buff.write(final_txt.getBytes());
Buff.write(txt.getBytes());
Buff.flush();
Buff.close();
} catch (IOException e) {
e.printStackTrace();
}
}
String getProvider(){
@SuppressLint("MissingPermission")
String IMSI = mTelephonyManager.getSubscriberId();
//Log.i("qweqwes", "运营商代码" + IMSI);
String ProvidersName = "Unknown";
if (IMSI != null) {
if (IMSI.startsWith("46000") || IMSI.startsWith("46002") || IMSI.startsWith("46007") || IMSI.startsWith("46004")) {
ProvidersName = "中国移动";
} else if (IMSI.startsWith("46001") || IMSI.startsWith("46006")) {
ProvidersName = "中国联通";
} else if (IMSI.startsWith("46003") || IMSI.startsWith("46011")) {
ProvidersName = "中国电信";
} else
ProvidersName = IMSI;
} else {
}
return ProvidersName;
}
@SuppressLint("MissingPermission")
String getCellularType(){
String cellularType="";
int nSubType = mTelephonyManager.getNetworkType();
if (nSubType == TelephonyManager.NETWORK_TYPE_GPRS
|| nSubType == TelephonyManager.NETWORK_TYPE_EDGE
|| nSubType == TelephonyManager.NETWORK_TYPE_CDMA
|| nSubType == TelephonyManager.NETWORK_TYPE_GSM) {
cellularType = "2G";
} else if (nSubType == TelephonyManager.NETWORK_TYPE_UMTS
|| nSubType == TelephonyManager.NETWORK_TYPE_HSDPA
|| nSubType == TelephonyManager.NETWORK_TYPE_EVDO_0) {
cellularType= "3G";
} else if (nSubType == TelephonyManager.NETWORK_TYPE_LTE) {
cellularType= "4G";
} else if (nSubType == TelephonyManager.NETWORK_TYPE_NR) {
cellularType= "5G";
}else if(nSubType == TelephonyManager.NETWORK_TYPE_UNKNOWN){
cellularType= "0G";
}else
cellularType = String.valueOf( nSubType );
return cellularType;
}
//5.1用这个
private class MyPhoneStateListener extends PhoneStateListener {
@Override
public void onSignalStrengthsChanged(SignalStrength signalStrength) {
super.onSignalStrengthsChanged(signalStrength);
try {
Method method = signalStrength.getClass().getMethod("getDbm");
int dbm = (int) method.invoke(signalStrength);
Method method1 = signalStrength.getClass().getMethod("getAsuLevel");
int asu = (int) method1.invoke(signalStrength);
String provider = getProvider();
String celluarType = getCellularType();
String logTxt = String.format("%s %s dbm:%d asu:%d \n", provider, celluarType, dbm, asu);
logFile(logTxt, true);
Log.e("mb_signal info",provider + " " + celluarType+ " dbm:" + dbm +" asu:" + asu);
//通过这个方法能获取出和系统一样的信号格数
//Method method2 = signalStrength.getClass().getMethod("getLteLevel");
//int level = method2.invoke(signalStrength);
} catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
Log.d("TAG", "onSignalStrengthsChanged: 獲取4G訊號強度值失敗");
}
}
@Override
public void onServiceStateChanged(ServiceState serviceState) {
int state = serviceState.getState();
if( state == ServiceState.STATE_EMERGENCY_ONLY){
Log.e("手机网络状态","STATE_EMERGENCY_ONLY");
logFile("手机网络状态:STATE_EMERGENCY_ONLY\n", true);
}else if( state == ServiceState.STATE_OUT_OF_SERVICE){
Log.e("手机网络状态","STATE_OUT_OF_SERVICE");
logFile("手机网络状态:STATE_OUT_OF_SERVICE\n", true);
}else if( state == ServiceState.STATE_IN_SERVICE){
Log.e("手机网络状态", "STATE_IN_SERVICE" );
logFile("手机网络状态:STATE_IN_SERVICE\n", true);
}else if(state == ServiceState.STATE_POWER_OFF)
{
Log.e("手机网络状态", "STATE_POWER_OFF" );
logFile("手机网络状态:STATE_POWER_OFF\n", true);
}else{
Log.e("手机网络状态", "" + state);
logFile("手机网络状态:" + state+"\n", true);
}
}
}
}
既非原创也非抄袭。本人只做搬运和融合。特此声明
引用地址：
https://www.itread01.com/content/1545403538.html
https://blog.csdn.net/zjy764219923/article/details/104944238
https://www.it610.com/article/1293138498462752768.htm