URL encoding in Android

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You don’t encode the entire URL, only parts of it that come from “unreliable sources”.

  • Java:

    String query = URLEncoder.encode("apples oranges", "utf-8");
String url = "http://stackoverflow.com/search?q=" + query;

  • Kotlin:

    val query: String = URLEncoder.encode("apples oranges", "utf-8")
val url = "http://stackoverflow.com/search?q=$query"

Alternatively, you can use Strings.urlEncode(String str) of DroidParts that doesn’t throw checked exceptions.

Or use something like

String uri = Uri.parse("http://...")
                .buildUpon()
                .appendQueryParameter("key", "val")
                .build().toString();

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