如何将数据从一个 Fragment 发送到另一个 Fragment? [英] How to send data from one Fragment to another Fragment?

问题描述

我知道这个问题有答案.我已经尝试了所有这些，但它在我的应用程序中不起作用.我正在开发一个具有 3 个 Fragment 活动的应用程序.第一个片段显示一个网站，第二个片段有列表视图，第三个片段有另一个列表视图.现在我想在用户点击列表项时将 URL 从第三个片段发送到第一个片段..这就是我所做的.

Hi I know there are answers of this question. I have tried all of them but it is not working in my app. I am developing an app that has 3 Fragment activity. First fragment shows a website, second fragment has listview and third Fragment has another listview. Now I want to send URL from third fragment to first fragment when user clicks on listitem..This is what I have done.

我正在将字符串 url 从此片段发送到第一个片段.

I am sending string url from this Fragment to first fragment.

list.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> adapter, View view, int position,
            long id) {
        FragmentC fragment = new  FragmentC();
        final Bundle bundle = new Bundle();
        bundle.putString("position", "http://www.facebook.com");            fragment.setArguments(bundle);}
});

这是我需要网址并希望在 webview 中显示的第一个片段.

This is first fragment where I need the url and Want to show in the webview.

String url="http://www.hotelsearcher.net/";
        Bundle args = getArguments();
        if (args  != null){
        url = args.getString("position");
        }
        WebView webView= (WebView) V.findViewById(R.id.webView1);
        WebSettings webViewSettings = webView.getSettings();
        webViewSettings.setJavaScriptCanOpenWindowsAutomatically(true);
        webViewSettings.setJavaScriptEnabled(true);
        webViewSettings.setPluginState(PluginState.ON);
        webView.loadUrl(url);

当我点击列表项时，我什么也没看到.它不会将我重定向到第一个片段.请帮助我..

When I click on list item I don't see anything . It does not redirect me to the first fragment.Please help me..

推荐答案

使用Bundle发送String:

//Put the value
YourNewFragment ldf = new YourNewFragment ();
Bundle args = new Bundle();
args.putString("YourKey", "YourValue");
ldf.setArguments(args);

//Inflate the fragment
getFragmentManager().beginTransaction().add(R.id.container, ldf).commit();

在新片段的onCreateView中:

In onCreateView of the new Fragment:

//Retrieve the value
String value = getArguments().getString("YourKey");

这篇关于如何将数据从一个 Fragment 发送到另一个 Fragment?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！