简单 4部 完成 android 二维码扫一扫功能（5分钟实现）

android 实现扫一扫的功能（5分钟实现）

1、加载gradle坐标

allprojects {
    repositories {
        google()
        jcenter()
        maven { url 'https://jitpack.io' }
    }
}

//    扫描二维码
    implementation 'com.github.yuzhiqiang1993:zxing:2.1.4'

2 添加授权

3 添加跳转页

  @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//        Toast.makeText(getActivity(),"当前点击为："+names[position],Toast.LENGTH_SHORT).show();

       switch (position) {

           case 5:
               L.i("点击按钮"+names[position]); //日志封装可以忽略
               Intent intent = new Intent(getActivity(), CaptureActivity.class);
               startActivityForResult(intent,1111);
               break;
       }


    }

4 复写回调方法

 @Override
    public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        L.i("拿到了返回值");//日志封装可以忽略

        if (requestCode == 1111) {
            if (data != null) {

                String content = data.getStringExtra(Constant.CODED_CONTENT);
                L.i("二维码返回结果为："+content);
             Toast.makeText(getActivity(),"二维码："+content,Toast.LENGTH_SHORT).show();

            }
        }
        super.onActivityResult(requestCode, resultCode, data);
    }