啟用使用者互動
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
Jetpack Compose 可在 Text
中進行精細的互動。文字選取功能現在更具彈性,並且可以在可組合項的版面配置中完成。文字中的使用者互動與其他可組合項的版面配置不同,因為您無法在一部分 Text
可組合項中新增修飾詞。本頁重點介紹各種可於啟用使用者互動的 API。
選取文字
根據預設,可組合項是無法選取的,也就是說,使用者無法選取及複製應用程式中的文字。如要啟用文字選取功能,請使用 SelectionContainer
可組合項包裝文字元素:
@Composable
fun SelectableText() {
SelectionContainer {
Text("This text is selectable")
}
}
您可能需要針對可選取區域的特定部分停用選取功能。如要執行此操作,您必須使用 DisableSelection
組件納入無法選取的部分:
@Composable
fun PartiallySelectableText() {
SelectionContainer {
Column {
Text("This text is selectable")
Text("This one too")
Text("This one as well")
DisableSelection {
Text("But not this one")
Text("Neither this one")
}
Text("But again, you can select this one")
Text("And this one too")
}
}
}
使用 LinkAnnotation
建立可點選的文字區段
如要監聽 Text
上的點擊,您可以新增 clickable
輔助鍵。不過,您可能需要在部分 Text
值中附加其他資訊,例如附加至特定字詞,以便在瀏覽器中開啟的網址:在這種情況下,您需要使用 LinkAnnotation
,這是代表文字中可點選部分的註解。
使用 LinkAnnotation
,您可以將網址附加至 Text
可組合函式的一部分,點選後就會自動開啟,如下列程式碼片段所示:
@Composable
fun AnnotatedStringWithLinkSample() {
// Display multiple links in the text
Text(
buildAnnotatedString {
append("Go to the ")
withLink(
LinkAnnotation.Url(
"https://developer.android.com/",
TextLinkStyles(style = SpanStyle(color = Color.Blue))
)
) {
append("Android Developers ")
}
append("website, and check out the")
withLink(
LinkAnnotation.Url(
"https://developer.android.com/jetpack/compose",
TextLinkStyles(style = SpanStyle(color = Color.Green))
)
) {
append("Compose guidance")
}
append(".")
}
)
}
您也可以設定自訂動作,回應使用者點選 Text
可組合函式一部分的動作。在下列程式碼片段中,使用者點選「Jetpack Compose」時會顯示連結,如果使用者點選該連結,系統就會記錄指標:
@Composable
fun AnnotatedStringWithListenerSample() {
// Display a link in the text and log metrics whenever user clicks on it. In that case we handle
// the link using openUri method of the LocalUriHandler
val uriHandler = LocalUriHandler.current
Text(
buildAnnotatedString {
append("Build better apps faster with ")
val link =
LinkAnnotation.Url(
"https://developer.android.com/jetpack/compose",
TextLinkStyles(SpanStyle(color = Color.Blue))
) {
val url = (it as LinkAnnotation.Url).url
// log some metrics
uriHandler.openUri(url)
}
withLink(link) { append("Jetpack Compose") }
}
)
}
為您推薦
這個頁面中的內容和程式碼範例均受《內容授權》中的授權所規範。Java 與 OpenJDK 是 Oracle 和/或其關係企業的商標或註冊商標。
上次更新時間:2025-08-28 (世界標準時間)。
[null,null,["上次更新時間:2025-08-28 (世界標準時間)。"],[],[],null,["Jetpack Compose enables fine-grained interactivity in `Text`. Text selection is\nnow more flexible and can be done across composable layouts. User interactions\nin text are different from other composable layouts, as you can't add a modifier\nto a portion of a `Text` composable. This page highlights the APIs\nthat enable user interactions.\n\nSelect text\n\nBy default, composables aren't selectable, which means that users can't\nselect and copy text from your app. To enable text selection, wrap\nyour text elements with a [`SelectionContainer`](/reference/kotlin/androidx/compose/foundation/text/selection/package-summary#SelectionContainer(androidx.compose.ui.Modifier,kotlin.Function0)) composable:\n\n\n```kotlin\n@Composable\nfun SelectableText() {\n SelectionContainer {\n Text(\"This text is selectable\")\n }\n}https://github.com/android/snippets/blob/7a0ebbee11495f628cf9d574f6b6069c2867232a/compose/snippets/src/main/java/com/example/compose/snippets/text/TextSnippets.kt#L407-L412\n```\n\n\u003cbr /\u003e\n\nYou may want to disable selection on specific parts of a selectable area. To do\nso, you need to wrap the unselectable part with a [`DisableSelection`](/reference/kotlin/androidx/compose/foundation/text/selection/package-summary#DisableSelection(kotlin.Function0))\ncomposable:\n\n\n```kotlin\n@Composable\nfun PartiallySelectableText() {\n SelectionContainer {\n Column {\n Text(\"This text is selectable\")\n Text(\"This one too\")\n Text(\"This one as well\")\n DisableSelection {\n Text(\"But not this one\")\n Text(\"Neither this one\")\n }\n Text(\"But again, you can select this one\")\n Text(\"And this one too\")\n }\n }\n}https://github.com/android/snippets/blob/7a0ebbee11495f628cf9d574f6b6069c2867232a/compose/snippets/src/main/java/com/example/compose/snippets/text/TextSnippets.kt#L418-L433\n```\n\n\u003cbr /\u003e\n\nCreate clickable sections of text with `LinkAnnotation`\n\nTo listen for clicks on `Text`, you can add the [`clickable`](/reference/kotlin/androidx/compose/foundation/package-summary#(androidx.compose.ui.Modifier).clickable(kotlin.Boolean,kotlin.String,androidx.compose.ui.semantics.Role,kotlin.Function0))\nmodifier. However, you may want to attach extra information to a certain part of\nthe `Text` value, like a URL attached to a certain word to be opened in a\nbrowser. In cases like this, you need to use a [`LinkAnnotation`](/reference/kotlin/androidx/compose/ui/text/LinkAnnotation), which is\nan annotation that represents a clickable part of the text.\n\nWith `LinkAnnotation`, you can attach a URL to a part of a `Text` composable\nthat automatically opens once clicked, as shown in the following snippet:\n\n\n```kotlin\n@Composable\nfun AnnotatedStringWithLinkSample() {\n // Display multiple links in the text\n Text(\n buildAnnotatedString {\n append(\"Go to the \")\n withLink(\n LinkAnnotation.Url(\n \"https://developer.android.com/\",\n TextLinkStyles(style = SpanStyle(color = Color.Blue))\n )\n ) {\n append(\"Android Developers \")\n }\n append(\"website, and check out the\")\n withLink(\n LinkAnnotation.Url(\n \"https://developer.android.com/jetpack/compose\",\n TextLinkStyles(style = SpanStyle(color = Color.Green))\n )\n ) {\n append(\"Compose guidance\")\n }\n append(\".\")\n }\n )\n}https://github.com/android/snippets/blob/7a0ebbee11495f628cf9d574f6b6069c2867232a/compose/snippets/src/main/java/com/example/compose/snippets/text/TextSnippets.kt#L564-L590\n```\n\n\u003cbr /\u003e\n\nYou can also configure a custom action in response to a user click on a part of\nthe `Text` composable. In the following snippet, when the user clicks on\n\"Jetpack Compose,\" a link is displayed, and metrics are logged if the user\nclicks the link:\n\n\n```kotlin\n@Composable\nfun AnnotatedStringWithListenerSample() {\n // Display a link in the text and log metrics whenever user clicks on it. In that case we handle\n // the link using openUri method of the LocalUriHandler\n val uriHandler = LocalUriHandler.current\n Text(\n buildAnnotatedString {\n append(\"Build better apps faster with \")\n val link =\n LinkAnnotation.Url(\n \"https://developer.android.com/jetpack/compose\",\n TextLinkStyles(SpanStyle(color = Color.Blue))\n ) {\n val url = (it as LinkAnnotation.Url).url\n // log some metrics\n uriHandler.openUri(url)\n }\n withLink(link) { append(\"Jetpack Compose\") }\n }\n )\n}https://github.com/android/snippets/blob/7a0ebbee11495f628cf9d574f6b6069c2867232a/compose/snippets/src/main/java/com/example/compose/snippets/text/TextSnippets.kt#L594-L614\n```\n\n\u003cbr /\u003e\n\nRecommended for you\n\n- Note: link text is displayed when JavaScript is off\n- [Semantics in Compose](/develop/ui/compose/semantics)\n- [Accessibility in Compose](/develop/ui/compose/accessibility)\n- [Material Design 2 in Compose](/develop/ui/compose/designsystems/material)"]]