Question

我目前正在尝试向我的 Google 地图应用添加自动完成搜索栏。我想用它来缩放到搜索的目的地。到目前为止，这适用于我当前的解决方案，但仍然缺少自动完成功能，我希望在搜索栏中有一个小“X”按钮来清除文本。必须有比我目前的方法更好的解决方案，因为到目前为止它真的很原始。这是我的activity_maps.xml_

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"

        android:orientation="horizontal">

        <EditText
            android:id="@+id/editText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="4"
            android:hint="Search Location Here" />


        <Button
            android:id="@+id/search_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="0.5"
            android:onClick="onMapSearch"
            android:text="Search" />

    </LinearLayout>

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clickable="true"
    android:focusableInTouchMode="true"
    android:background="@color/dark_green"
    tools:context=".MapsActivity"
    android:focusable="true" />

</LinearLayout>

和我的函数 onMapSearch():

    fun onMapSearch(view: View?) {
        try {
            //finding editText by id
            locationSearch.isCursorVisible = true
            locationSearch.setOnClickListener(View.OnClickListener {
                locationSearch.isCursorVisible = true
            })
            val location = locationSearch.text.toString()
            var addressList: List<Address>? = null
            if (location != null || location != "") {
                val geocoder = Geocoder(this)
                try {
                    //finding the address of the searched place
                    addressList = geocoder.getFromLocationName(location, 1)
                } catch (e: IOException) {
                    e.printStackTrace()
                }
                val address: Address = addressList!![0]
                val latLng = LatLng(address.getLatitude(), address.getLongitude())
                //moving camera to the given position
                mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 17.5f))
                //set cursor in search bar visible
                locationSearch.isCursorVisible = false
                //calling function to hide keyboard after search

            }
        } catch (e: java.lang.Exception) {
            println("searching for unknown location")
        }

    }

谷歌地图应用的自动完成搜索栏

0 个答案: