問題描述

有沒有辦法在 Android 2.3 上顯示多行 EditText 并使用 IME 操作標(biāo)簽完成"?

Is there a way to have a Multi-Line EditText present and use the IME Action Label "Done" on Android 2.3?

在 Android 2.2 中這不是問題，輸入按鈕顯示 IME 操作標(biāo)簽完成"(android:imeActionLabel="actionDone")，并在單擊時(shí)關(guān)閉軟輸入.

In Android 2.2 this is not a problem, the enter button shows the IME Action Label "Done" (android:imeActionLabel="actionDone"), and dismisses Soft Input when clicked.

在為多行配置 EditText 時(shí)，Android 2.3 移除了為軟輸入鍵盤顯示完成"操作的功能.

When configuring an EditText for multi-line, Android 2.3 removes the ability to show the "Done" action for the Soft Input keyboard.

我已經(jīng)設(shè)法通過使用 KeyListener 來改變軟輸入回車按鈕的行為，但是回車按鈕看起來仍然像回車鍵.

I have managed to alter the behaviour of the Soft Input enter button by using a KeyListener, however the enter button still looks like an enter key.

這里是EditText

<EditText
        android:id="@+id/Comment"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:layout_marginBottom="0dp"
        android:lines="3"
        android:maxLines="3"
        android:minLines="3"
        android:maxLength="60"
        android:scrollHorizontally="false"
        android:hint="hint"
        android:gravity="top|left"
        android:textColor="#888"
        android:textSize="14dp"
        />
<!-- android:inputType="text" will kill the multiline on 2.3! -->
<!-- android:imeOptions="actionDone" switches to a "t9" like soft input -->

當(dāng)我在活動(dòng)中加載設(shè)置內(nèi)容視圖后檢查 inputType 值時(shí)，它顯示為:

When I check the inputType value after loading setting the content view in the activity, it shows up as:

inputType = 0x20001

這是:

• class = TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_NORMAL
• 標(biāo)志 = InputType.TYPE_TEXT_FLAG_MULTI_LINE

推薦答案

嗯，重新閱讀了 TextView 和 EditorInfo 文檔后，已經(jīng)清楚平臺(tái)將強(qiáng)制 IME_FLAG_NO_ENTER_ACTION 進(jìn)行多行文本視圖.

Well, after re-reading the TextView and EditorInfo docs, it has become clear that the platform is going to force IME_FLAG_NO_ENTER_ACTION for multi-line text views.

請注意，TextView 會(huì)自動(dòng)在多行上為您設(shè)置此標(biāo)志文本視圖.

Note that TextView will automatically set this flag for you on multi-line text views.

我的解決方案是繼承 EditText 并在讓平臺(tái)配置它們后調(diào)整 IME 選項(xiàng):

My solution is to subclass EditText and adjust the IME options after letting the platform configure them:

@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
    InputConnection connection = super.onCreateInputConnection(outAttrs);
    int imeActions = outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION;
    if ((imeActions&EditorInfo.IME_ACTION_DONE) != 0) {
        // clear the existing action
        outAttrs.imeOptions ^= imeActions;
        // set the DONE action
        outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE;
    }
    if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NO_ENTER_ACTION) != 0) {
        outAttrs.imeOptions &= ~EditorInfo.IME_FLAG_NO_ENTER_ACTION;
    }
    return connection;
}

在上面，我也強(qiáng)制 IME_ACTION_DONE，即使這可以通過繁瑣的布局配置來實(shí)現(xiàn).

In the above, I'm forcing IME_ACTION_DONE too, even though that can be achieved through tedious layout configuration.

這篇關(guān)于2.3 上帶有完成 SoftInput 操作標(biāo)簽的多行 EditText的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！