Android调用相册、相机（兼容6.0、7.0、8.0）所需添加的权限

在AndroidManifest.xml中添加：

动态权限添加：
在onCreate中添加

													//调取系统照相机
 if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED &&
                ContextCompat.checkSelfPermission(this, 
                Manifest.permission.WRITE_EXTERNAL_STORAGE) 
                !=
                 PackageManager.PERMISSION_GRANTED
                ) {
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
        } else {
            wxat = 200;
        }

方法：

 @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 1) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED && grantResults[1] == PackageManager.PERMISSION_GRANTED) {
                Toast.makeText(this, "授权成功", Toast.LENGTH_SHORT).show();
                wxat = 200;
            } else {
                Toast.makeText(this, "授权失败", Toast.LENGTH_SHORT).show();
            }

        }
    }

或者使用easypermissions框架 (https://github.com/googlesamples/easypermissions)

1、首先也是在AndroidManifest.xml中添加：

2、在主页面中：

2.1、初始化集合装载所需网络权限

private String[] permissions = {Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE};

2.2、检查权限申请权限

//获取权限
    private void getPermission() {
        if (EasyPermissions.hasPermissions(this, permissions)) {
            //已经打开权限
            Toast.makeText(this, "已经申请相关权限", Toast.LENGTH_SHORT).show();
        } else {
            //没有打开相关权限、申请权限
            EasyPermissions.requestPermissions(this, "需要获取您的相册、照相使用权限", 1, permissions);
        }
    }

2.3、实现接口

在所运用权限申请的界面实现EasyPermissions.PermissionCallbacks接口

2.4、处理接口回调的数据

@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        //框架要求必须这么写
        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
    }

    
    //成功打开权限
    @Override
    public void onPermissionsGranted(int requestCode, @NonNull List perms) {
        
        Toast.makeText(this, "相关权限获取成功", Toast.LENGTH_SHORT).show();
    }
    //用户未同意权限
    @Override
    public void onPermissionsDenied(int requestCode, @NonNull List perms) {
        Toast.makeText(this, "请同意相关权限，否则功能无法使用", Toast.LENGTH_SHORT).show();
    }