关于Android蓝牙发现.
从清单权限错误中获取此错误.但是,我发现的唯一错误是他们忘记将权限放在应用程序之外.然而,这不是这种情况.
该程序在运行Jelly Bean 4.1的galaxy S2上进行测试.
错误如下:
03-19 13:08:03.933: W/dalvikvm(12616): threadid=1: thread exiting with uncaught exception (group=0x413082a0)
03-19 13:08:03.938: E/AndroidRuntime(12616): FATAL EXCEPTION: main
03-19 13:08:03.938: E/AndroidRuntime(12616): java.lang.SecurityException: Need BLUetoOTH_ADMIN permission: Neither user 10004 nor current process has android.permission.BLUetoOTH_ADMIN.
基本上清单看起来像:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.motioncontrol"
android:versionCode="1"
android:versionName="1.0" >
<user-permission android:name="android.permission.BLUetoOTH_ADMIN" />
<uses-permission android:name="android.permission.BLUetoOTH" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:debuggable="true"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.motioncontrol.Main"
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=".AccelerometerDat"
android:label="@string/accelerator_title" />
<activity
android:name=".gyroscopeData" />
<activity
android:name=".Gravitydat" />
<activity
android:name=".Linearacc" />
<activity
android:name=".Bluetooth" />
<activity
android:name=".CheckBluetooth" />
<activity
android:name=".About"
android:label="@string/about_title"
android:theme="@android:style/Theme.Dialog" />
</application>
</manifest>
以及发生错误的类:
private void dodiscovery() {
if (D) Log.d(TAG, "dodiscovery()");
// Indicate scanning in the title
setProgressBarIndeterminateVisibility(true);
setTitle(R.string.scanning);
Log.d(TAG, "indicates scanning");
// Turn on sub-title for new devices
findViewById(R.id.title_new_devices).setVisibility(View.VISIBLE);
Log.d(TAG, "Set up sub-title for new devices");
// If we're already discovering, stop it
if (mBtAdapter.isdiscovering()) {
mBtAdapter.canceldiscovery();
Log.i(TAG, "Already running discovering, stop it!");
}
// Request discover from BluetoothAdapter
mBtAdapter.startdiscovery();
Log.d(TAG, "Request discover form BluetoothAdapter");
}
希望得到答案,出了什么问题:).
谢谢!
解决方法:
更改
<user-permission android:name="android.permission.BLUetoOTH_ADMIN" />
至
<uses-permission android:name="android.permission.BLUetoOTH_ADMIN" />
<使用者的许可>用于管理其他应用程序对当前组件的访问.你应该尝试< uses-permission>获得特权.