The app implements external browsers to open links

Requirements: A hybrid app developed for Android and IOS. The front end uses vue, vant2, Android uses java, and ios uses object-c. Achievement effect: click the button, download the PDF attachment, the app jumps to the mobile phone's external browser, download the attachment...

1. Android code:

public static void openPDFInBrowser(Context context, String url) {
        Uri uri \= Uri.parse(url);
        Intent intent \= new Intent(Intent.ACTION\_VIEW, uri);
        intent.putExtra(Browser.EXTRA\_APPLICATION\_ID, context.getPackageName());
        try {
            context.startActivity(intent);
        } catch (ActivityNotFoundException e) {
            Log.w("error", "Activity was not found for intent, " + intent.toString());
        }
    }

2. IOS terminal code:

\[\[UIApplication sharedApplication\]openURL:URL options:@{} completionHandler:^(BOOL success) {
 
}\];
 
函数异步执行，在主队列中调用 completionHandler 中的回调。
参数：
openURL:打开的网址
options:用来校验url和applicationConfigure是否配置正确，是否可用。
        如果校验为不可用，completionHandler的回调success为NO。
        唯一可用@{UIApplicationOpenURLOptionUniversalLinksOnly:@YES}。
        不需要就用@{}为置空，不能直接置nil。
        置空将不会校验，completionHandler的回调success恒为YES。
ompletionHandler:如不需要可置nil

3. The front-end code uses bridging:

 \_download(){
      const that \= this;
      const {voucherNo,unionid,custId} \= this;
      const baseUrl \= config.BASE\_API;
      const url \= \`/api/wx/down/voucherDetailByB001?voucherId=${voucherNo}&unionId=${unionid}\`;
      const downUrl \= baseUrl + url;
      this.isLoading = true;
      this.loadingText = "下载中";
      this.$JQAPI('saveFile', {
        param: {url: downUrl, suffix: 'pdf' },
        successCallBack: function (res) {
          that.isLoading \= false;
          const result \= JSON.parse(res);
          console.log(result);
          if (result && result.code == 200) {
            const data \= result.data;
            console.log(data);
            Toast({message:\`文件已保存至${data}文件夹\`,position: 'bottom',duration: 5000});      
          } else {
            that.$toast(result.msg);
          }
        },
        failedCallBack: function (err) {
          console.log(err)
          that.$toast(err);
          that.isLoading \= false;
        }
      });

Note: The back-end code returns the stream, and content-type: application/x-msdownload cannot be set, otherwise the attachment downloaded by IOS will bring .exe

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The app implements external browsers to open links

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