来电号码是结束在Android的PIE 9通话后空(Incoming number is null

我一直对这个问题，因为周。我在做这挑选来电号码并显示在一个对话框中的通话结束后的应用程序。一切工作的android以下PIE 9.0罚款。数总是在Android的PIE空。我已经给所有的权限，包括READ_CALL_LOGS但同样的问题。拨入号码为空。所以，请谁能帮我...

这里是我的清单文件：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.softixtechnologies.phonemanager">

<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.READ_CALL_LOG" />
<uses-permission android:name="android.permission.WRITE_CALL_LOG" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.ACTION_MANAGE_OVERLAY_PERMISSION" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<application
    android:allowBackup="true"
    android:icon="@drawable/calllogo"
    android:label="@string/app_name"
    android:persistent="true"
    android:roundIcon="@drawable/calllogo"
    android:supportsRtl="true"
    android:theme="@style/AppTheme"
    android:usesCleartextTraffic="true">
    <activity android:name=".activities.CallLogEntryActivity"></activity>
    <activity android:name=".activities.CallLogsActivity" />
    <activity android:name=".activities.IgnoredNumbersActivity" />
    <activity android:name=".activities.IContactsActivity" />
    <activity android:name=".activities.SplashActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".activities.CategoryPhoneActivity" />
    <activity
        android:name=".activities.LogsActivity"
        android:label="@string/title_activity_logs"
        android:theme="@style/AppTheme.NoActionBar" />
    <activity
        android:name=".activities.CategoryActivity"
        android:label="@string/title_activity_category"
        android:theme="@style/AppTheme.NoActionBar" />
    <activity android:name=".MainActivity" />

    <receiver
        android:name=".callhelpers.CallReciever"
        android:enabled="true">
        <intent-filter>
            <action android:name="android.intent.action.PHONE_STATE" />
        </intent-filter>
    </receiver>

    <provider
        android:name="android.support.v4.content.FileProvider"
        android:authorities="${applicationId}.provider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/provider_paths" />
    </provider>
</application>

这里是我的代码 ：

    public class PhoneCallReceiver extends BroadcastReceiver {
    private static int lastState = TelephonyManager.CALL_STATE_IDLE;
    private static Date callStartTime;
    private static boolean isIncoming;
    private static String savedNumber;
    public String phoneNr ;
    DatabaseHelper databaseHelper ;

    @Override
    public void onReceive(final Context context, Intent intent) {
        databaseHelper = new DatabaseHelper(context);


    if (intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
                savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
            } else {
                String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
                String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);

                int state = 0;
                if (stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
                    state = TelephonyManager.CALL_STATE_IDLE;
                } else if (stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
                    state = TelephonyManager.CALL_STATE_OFFHOOK;
                } else if (stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
                    state = TelephonyManager.CALL_STATE_RINGING;
                }
                onCallStateChanged(context, state, number);
            }
    }

    protected void onIncomingCallStarted(Context ctx, String number, Date start){}

    protected void onOutgoingCallStarted(Context ctx, String number, Date start){}

    protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end){}

    protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end){}

    protected void onMissedCall(final Context ctx, final String number, Date start){}

    public void onCallStateChanged(Context context, int state, String number){
            if (lastState == state) {
                return;
            }
            switch (state) {
                case TelephonyManager.CALL_STATE_RINGING:
                    isIncoming = true;
                    callStartTime = new Date();
                    savedNumber = number;

                    onIncomingCallStarted(context, number, callStartTime);
                    break;

                case TelephonyManager.CALL_STATE_OFFHOOK:
                    if (lastState != TelephonyManager.CALL_STATE_RINGING) {
                        isIncoming = false;
                        callStartTime = new Date();
                        onOutgoingCallStarted(context, savedNumber, callStartTime);
                    }
                    break;

                case TelephonyManager.CALL_STATE_IDLE:

                    if (lastState == TelephonyManager.CALL_STATE_RINGING) {
                            onMissedCall(context, savedNumber, callStartTime);
                    } else if (isIncoming) {

                        onIncomingCallEnded(context, savedNumber, callStartTime, new Date());
                    } else {
                        onOutgoingCallEnded(context, savedNumber, callStartTime, new Date());
                    }
                    break;
            }
            lastState = state;
    }
    public boolean contactExists(Context context, String number) {
        Uri lookupUri = Uri.withAppendedPath(
                ContactsContract.PhoneLookup.CONTENT_FILTER_URI,
                Uri.encode(number));
        String[] mPhoneNumberProjection = { ContactsContract.PhoneLookup._ID, ContactsContract.PhoneLookup.NUMBER, ContactsContract.PhoneLookup.DISPLAY_NAME };
        Cursor cur = context.getContentResolver().query(lookupUri,mPhoneNumberProjection, null, null, null);
        try {
            if (cur.moveToFirst()) {
                return true;
            }
        } finally {
            if (cur != null)
                cur.close();
        }
        return false;
    }
}

你的帮助是极大的赞赏！

有手机状态接收器的两个不同的“类型”，即具有接收器Manifest.permission.READ_CALL_LOG许可，不接收器。

如果接收器不具有Manifest.permission.READ_CALL_LOG权限，它将要求所有国家更换一次，而EXTRA_INCOMING_NUMBER额外费用。

如果接收确实有上述权限，就像在你的情况下，它会被称为对每一个国家更换了两次，一个没有EXTRA_INCOMING_NUMBER许可，另一次用它。

既然你有这样的代码：

if (lastState == state) {
    return;
}

在onCallStateChanged方法，你基本上跳过第二个电话，并因此失去了EXTRA_INCOMING_NUMBER信息。

如果你确定你有READ_CALL_LOG许可，您可以尝试跳过没有额外的完全复制的接收器调用（但是请注意，有获得了额外的“空”值，这意味着私人号码呼叫，并没有得到之间的差异额外的话），就像这样：

String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
if (!intent.getExtras().containsKey(TelephonyManager.EXTRA_INCOMING_NUMBER)) {
    Log.i("Call receiver", "skipping intent=" + intent + ", extras=" + intent.getExtras() + " - no number was supplied");
    return;
}
String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);

看到官方文档在： https://developer.android.com/reference/android/telephony/TelephonyManager#ACTION_PHONE_STATE_CHANGED