android6.0用户授权

public class PermissionUtils {
    private static Context mcontext;
    private static PermissionUtils permissionUtils;

    public static final int PERMISSION_REQUEST_CODE = 1001;

    private PermissionUtils(){}

    public static PermissionUtils getInstance(Context context){
        mcontext = context;
        if(permissionUtils == null){
            permissionUtils = new PermissionUtils();
        }
        return permissionUtils;
    }

    /**
     * 需要申请的权限列表
     */
    public static  final String[] BASIC_PERMISSIONS = new String[]{
            Manifest.permission.READ_PHONE_STATE,
            Manifest.permission.CHANGE_WIFI_STATE,
            Manifest.permission.WAKE_LOCK,
            Manifest.permission.RECEIVE_BOOT_COMPLETED, //接收开机完成广播的权限
            Manifest.permission.GET_TASKS,
            Manifest.permission.SYSTEM_ALERT_WINDOW,  //系统弹出框权限
            Manifest.permission.WRITE_EXTERNAL_STORAGE, //写SD卡的权限
            Manifest.permission.READ_EXTERNAL_STORAGE, //读SD卡的权限
            Manifest.permission.ACCESS_COARSE_LOCATION, //获取位置信息的权限
            Manifest.permission.READ_CONTACTS,
            Manifest.permission.RECEIVE_SMS,
            Manifest.permission.ACCESS_FINE_LOCATION,  //获取位置信息的权限
            Manifest.permission.READ_PHONE_STATE
    };


    /**
     * 检查是否拥有指定的所有权限
     */
    public boolean checkPermissionAllGranted(String[] permissions) {
        for (String permission : permissions) {
            if (ContextCompat.checkSelfPermission(mcontext, permission) != PackageManager.PERMISSION_GRANTED) {
                // 只要有一个权限没有被授予, 则直接返回 false
                return false;
            }
        }
        return true;
    }

    public void requesetPermission(String[] permissions){
        ActivityCompat.requestPermissions((Activity) mcontext,permissions,PERMISSION_REQUEST_CODE);
    }
}


然后再MainActivity的Oncreate中

//Android 6.0以上的系统动态申请权限
if(Build.VERSION.SDK_INT > 22){
   if (!PermissionUtils.getInstance(this).checkPermissionAllGranted(BASIC_PERMISSIONS)){
      PermissionUtils.getInstance(this).requesetPermission(BASIC_PERMISSIONS);
   }
}


最后在MainActivity中

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
   super.onRequestPermissionsResult(requestCode, permissions, grantResults);

   if (requestCode == PERMISSION_REQUEST_CODE) {
      boolean isAllGranted = true;

      // 判断是否所有的权限都已经授予了
      for (int grant : grantResults) {
         if (grant != PackageManager.PERMISSION_GRANTED) {
            isAllGranted = false;
            break;
         }
      }

      if (isAllGranted) {
         // 如果所有的权限都授予了, 则执行备份代码
      } else {
         // 弹出对话框告诉用户需要权限的原因, 并引导用户去应用权限管理中手动打开权限按钮
      }
   }
}