Android 为什么我';我不允许访问单元格信息
我试图获取有关蜂窝网络的信息(邻居小区、信号强度等),但我用一种方法(Android 为什么我';我不允许访问单元格信息,android,cellular-network,lte,Android,Cellular Network,Lte,我试图获取有关蜂窝网络的信息(邻居小区、信号强度等),但我用一种方法(telephonyManager.getAllCellInfo())解决了这个问题。 在OnePlus 6t上测试 protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); text
telephonyManager.getAllCellInfo()
)解决了这个问题。
在OnePlus 6t上测试
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = findViewById(R.id.text);
telephonyManager = (TelephonyManager) this.getSystemService(Context.TELEPHONY_SERVICE);
if (ActivityCompat.checkSelfPermission(this, READ_SMS) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(this, READ_PHONE_NUMBERS) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(this, ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(this, READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{READ_SMS, READ_PHONE_NUMBERS, READ_PHONE_STATE,ACCESS_COARSE_LOCATION}, PERMISSION_REQUEST_CODE);
} else {
textView.setText(""+telephonyManager.getAllCellInfo());
}
}
在LogCat中,我看到:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.cellularanalyzer/com.example.cellularanalyzer.MainActivity}: java.lang.SecurityException: Not allowed to access cell info
如果我将
telephonyManager.getAllCellInfo()
更改为telephonyManager.getSignalStrength()
,我会得到一些信息,但不是全部信息。您需要访问\u FINE\u LOCATION
运行时权限才能从getAllCellInfo
获取信息
资料来源:
来自该方法的信息允许开发人员估计用户的位置