Android(安卓)6.0以后蓝牙扫描及连接不上解决方案

1.AndroidManifest.xml文件中添加两个权限：如下

2.在Activity中调用 requestPermissions() 方法来请求权限，系统会弹出需要请求权限的对话框

3.重写Activity的onRequestPermissionsResult()方法，接收权限是否请求的请求状态

全部示例代码如下：

private static final int PERMISSION_REQUEST_COARSE_LOCATION = 1;    @Override  protected void onCreate(Bundle savedInstanceState) {      super(savedInstanceState);    setContextView(R.layout.activity_main);    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {          // Android M Permission check          if (this.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {              requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION},                     PERMISSION_REQUEST_COARSE_LOCATION);          }      }  }    @Override  public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {      switch (requestCode) {          case PERMISSION_REQUEST_COARSE_LOCATION:              if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {                  // TODO request success              }          break;      }  }

2.在Activity中调用 requestPermissions() 方法来请求权限，系统会弹出需要请求权限的对话框

3.重写Activity的onRequestPermissionsResult()方法，接收权限是否请求的请求状态

全部示例代码如下：

更多相关文章

随机推荐