应用程序在请求READ_PHONE_STATE权限时发生IllegalStateException崩溃

Question

我需要捕获设备的IMEI和IMSI以及您已经知道的信息，这需要一个权限“android.permission.read_phone_state”。当这个对话框窗口向用户请求这个权限时，我的应用程序被停止了。怎么解决？

@SuppressLint("MissingPermission")
public void ListarApps(View view) throws PackageManager.NameNotFoundException {

    String myDeviceModel = android.os.Build.MODEL;
    String myDeviceProduct = android.os.Build.MANUFACTURER;
    String myVersion = Build.VERSION.RELEASE;
    System.out.println("Manufacturer: " + myDeviceProduct +
            " - Model: " + myDeviceModel + " - Android: " + myVersion);

    // Code For IMEI AND IMSI NUMBER ("android.permission.READ_PHONE_STATE")

    final int MY_PERMISSIONS_REQUEST_READ_PHONE_STATE = 999;

    ActivityCompat.requestPermissions(this,
            new String[]{Manifest.permission.READ_PHONE_STATE}, MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
        
        
    String serviceName = Context.TELEPHONY_SERVICE;
    TelephonyManager m_telephonyManager = (TelephonyManager) getSystemService(serviceName);
        
    String IMEI, IMSI;
        
    /*IMEI = m_telephonyManager.getDeviceId();
    IMSI = m_telephonyManager.getSubscriberId();  

    System.out.println("IMEI: " + IMEI);
    System.out.println("IMSI: " + IMSI);*/
}

更新2（AndroidManifest.xml文件）：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.testando.teste">

    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
    
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Answer 1

好吧，根据我的理解，您首先需要检查是否授予权限，然后为getdeviceid编写代码

if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE)
                != PackageManager.PERMISSION_GRANTED) {
    // ask user permission 
} else {
    // READ_PHONE_STATE permission is already been granted.
    TelephonyManager mngr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
    IMEI = mngr.getDeviceId();
}

您还需要重写OnRequestPermissionsResult

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
        // READ_PHONE_STATE permission is already been granted.
        TelephonyManager mngr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        IMEI = mngr.getDeviceId();
    }
}