使用Compose for Desktop在浏览器中打开链接

Question

如何在浏览器中打开链接如果我单击按钮。我正在使用Compose for Desktop。

Button(onClick = {
// What I have to write here..
}) {
Text(
text = "Open a link",
color = Color.Black
)
}

提前谢谢。

Answer 1

使用Desktop#浏览(URI(方法。它在用户的默认浏览器中打开一个URI。

public static boolean openWebpage(URI uri) {
Desktop desktop = Desktop.isDesktopSupported() ? Desktop.getDesktop() : null;
if (desktop != null && desktop.isSupported(Desktop.Action.BROWSE)) {
try {
desktop.browse(uri);
return true;
} catch (Exception e) {
e.printStackTrace();
}
}
return false;
}
public static boolean openWebpage(URL url) {
try {
return openWebpage(url.toURI());
} catch (URISyntaxException e) {
e.printStackTrace();
}
return false;
}

Answer 2

灵感来自https://stackoverflow.com/a/54869038/1575096也可以在Linux和Mac上工作：

fun openInBrowser(uri: URI) {
val osName by lazy(LazyThreadSafetyMode.NONE) { System.getProperty("os.name").lowercase(Locale.getDefault()) }
val desktop = Desktop.getDesktop()
when {
Desktop.isDesktopSupported() && desktop.isSupported(Desktop.Action.BROWSE) -> desktop.browse(uri)
"mac" in osName -> Runtime.getRuntime().exec("open $uri")
"nix" in osName || "nux" in osName -> Runtime.getRuntime().exec("xdg-open $uri")
else -> throw RuntimeException("cannot open $uri")
}
}
Button(onClick = { openInBrowser(URI("https://domain.tld/page")) }) {
Text(
text = "Open a link",
color = Color.Black
)
}

Answer 3

最小示例

1. 将函数代码放入commonMain模块

expect fun browseUrl(url: String)

2. 将功能代码放入desktopMain模块

actual fun browseUrl(url: String) {
val desktop = Desktop.getDesktop()
desktop.browse(URI.create(url)) 
}

3. 使用

onClick = {
browseUrl("http://${link}")
}