二维码 - 如何？

Question

我想隐藏二维码的结果... 例如：?re=123456789012&rr= 我只想显示 123456789012 并隐藏 ?re= 和 &rr 我正在阅读，人们说使用拆分方法，对吗？

protected void  onActivityResult(int requestCode,int resultCode,Intent data){
     IntentResult result = IntentIntegrator.parseActivityResult(requestCode,resultCode,data);
     if(result != null){
         if(result.getContents()==null){
             Toast.makeText(this,"cancelled", Toast.LENGTH_LONG).show();
         }
        else{
             resultado.setText(result.getContents());
         }
     }
     else {
         super.onActivityResult(requestCode,resultCode,data);
      }
     }

Answer 1

尝试使用子字符串函数：-

function:-

private String getQR(String content)
{
 return content.substring(4,15);    
}

function implementation:-

     if(result.getContents()==null){
         Toast.makeText(this,"cancelled", Toast.LENGTH_LONG).show();
     }
    else{
         resultado.setText(getQR(result.getContents())); // <- <-
     }