我正在开发一个连接应用程序，该应用程序连接到带有编译的SDK 23的蓝牙设备。我在申请蓝牙多重权限时遇到问题。这是我迄今所做的：在Android中请求多个蓝牙权限棉花糖
@Override
public void onStart() {
super.onStart();
if (D)
Log.e(TAG, "++ ON START ++");
if (ContextCompat.checkSelfPermission(MyBlueToothClientActivity.this,
Manifest.permission.BLUETOOTH)
!= PackageManager.PERMISSION_GRANTED) {
} else {
ActivityCompat.requestPermissions(MyBlueToothClientActivity.this,
new String[]{Manifest.permission.BLUETOOTH, Manifest.permission.BLUETOOTH_ADMIN},
REQUEST_ENABLE_BT);
}
if (ContextCompat.checkSelfPermission(MyBlueToothClientActivity.this,
Manifest.permission.BLUETOOTH)
!= PackageManager.PERMISSION_GRANTED) {
} else {
ActivityCompat.requestPermissions(MyBlueToothClientActivity.this,
new String[]{Manifest.permission.BLUETOOTH, Manifest.permission.BLUETOOTH_ADMIN},
REQUEST_CONNECT_DEVICE_INSECURE);
}
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case REQUEST_ENABLE_BT: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay!
Intent enableIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
if (CommonData.mChatService == null)
setupChat();
Toast.makeText(MyBlueToothClientActivity.this, "Permission denied for bluetooth", Toast.LENGTH_SHORT).show();
}
return;
}
case REQUEST_CONNECT_DEVICE_INSECURE: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay!
Intent enableIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableIntent, REQUEST_CONNECT_DEVICE_INSECURE);
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
if (CommonData.mChatService == null)
setupChat();
Toast.makeText(MyBlueToothClientActivity.this, "Permission denied for bluetooth", Toast.LENGTH_SHORT).show();
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}
虽然我能够得到的对话框请求启用蓝牙，我没有得到第二许可，即连接到设备。在logcat中，我得到：
01-01 06:41:24.334 25473-25473 E/BluetoothChat: ++ ON START ++
01-01 06:41:24.344 25473-25473 W/Activity: Can reqeust only one set of permissions at a time
而且由于我无法连接到设备，我只是在这里卡住了。而且这个代码在Android版本上运行良好，直到棒棒糖，只是导致棉花糖版本的问题。
2016-04-22
Mirhawk