鍵盤迴車搜索

xml:

android:maxLines="1"
android:singleLine="true"(華爲)
android:imeOptions="actionSearch"

java: 

etSearch.setOnEditorActionListener(object : TextView.OnEditorActionListener{
            override fun onEditorAction(v: TextView?, actionId: Int, event: KeyEvent?): Boolean {
                if (actionId == EditorInfo.IME_ACTION_SEARCH) {
                    SystemUtils.hideSoftKeyboard(etSearch)
                    val content = etSearch.text.toString()
                    if (content.isNullOrEmpty()) {
                        return true
                    }
                    requestData(content)
                    return true
                }
                return false
            }
        })