Question

我创建了一个启用蓝牙并发现其他设备的应用程序。在清单中我有以下内容：

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

但是，在设备上存在以下异常：

11-20 08:08:47.766: E/AndroidRuntime(9380): FATAL EXCEPTION: main
11-20 08:08:47.766: E/AndroidRuntime(9380): java.lang.SecurityException: Need BLUETOOTH permission: Neither user 10111 nor current process has android.permission.BLUETOOTH.

还有什么我必须添加到Manifest以便它可以工作？

这是清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="cajun.meet"
  android:versionCode="1"
  android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" />

<application android:icon="@drawable/icon" android:label="@string/app_name">

    <activity android:name=".CajunMeetActivity"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity android:name=".MyULCard"
              android:label="@string/app_name">
    </activity>

    <activity android:name=".MyULContacts"
              android:label="@string/app_name">
    </activity>

    <service android:name = ".BluetoothExchange" android:exported="true" android:enabled="true">
    </service>

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

</application>
</manifest>

Answer 1

尝试在<application>标记之外移动权限。如下所示：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="cajun.meet"
  android:versionCode="1"
  android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" />

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

<application android:icon="@drawable/icon" android:label="@string/app_name">

    <activity android:name=".CajunMeetActivity"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity android:name=".MyULCard"
              android:label="@string/app_name">
    </activity>

    <activity android:name=".MyULContacts"
              android:label="@string/app_name">
    </activity>

    <service android:name = ".BluetoothExchange" android:exported="true" android:enabled="true">
    </service>

</application>
</manifest>

Answer 2

将uses-permission标记移到application元素之外。 Uses-permission是清单的子元素，而不是应用程序。查看完整结构here。

Answer 3

将其移出应用程序：

    </application>
    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
</manifest>

uses-permission <manifest>是{{1}}

的孩子

Answer 4

如果使用mashmallow版本的android，则添加此代码：

这个错误发生在安全现在在api 23（mashmallow）版本android改进了安全性他们要求许可

if (android.os.Build.VERSION.SDK_INT >= 23) {
        // only for gingerbread and newer versions
        String permission = Manifest.permission.READ_PHONE_STATE;
        if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.READ_PHONE_STATE}, MY_PERMISSIONS_REQUEST_READ_CONTACTS);
        } else {
            // Add your function here which open camera
        }
    } else {
        // Add your function here which open camera
    }

然后添加此方法 onRequestPermissionsResult

    @Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_READ_CONTACTS: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED{ } else { Toast.makeText(getApplication(), "Permission required",Toast.LENGTH_LONG).show(); } return; } }}

Android权限错误

4 个答案: