為 PlaceAutocomplete 設定場所型別過濾器

在某些情況下，我們可能希望將 PlaceAutocomplete 顯示的結果縮小到特定國家/地區，或者僅顯示區域。這可以通過在 intent 上設定 AutocompleteFilter 來實現。例如，如果我只想檢視 REGION 型別的地方並且只屬於印度，我會做以下事情：

MainActivity.java

public class MainActivity extends AppComatActivity {
    
    private static final int PLACE_AUTOCOMPLETE_REQUEST_CODE = 1;
    private TextView selectedPlace;
    
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        selectedPlace = (TextView) findViewById(R.id.selected_place);
        try {
            AutocompleteFilter typeFilter = new AutocompleteFilter.Builder()
                    .setTypeFilter(AutocompleteFilter.TYPE_FILTER_REGIONS)
                    .setCountry("IN")
                    .build();

            Intent intent =
                    new PlaceAutocomplete.IntentBuilder(PlaceAutocomplete.MODE_FULLSCREEN)
                            .setFilter(typeFilter)
                            .build(this);
            startActivityForResult(intent, PLACE_AUTOCOMPLETE_REQUEST_CODE);

        } catch (GooglePlayServicesRepairableException
                | GooglePlayServicesNotAvailableException e) {
            e.printStackTrace();
        }
}

protected void onActivityResult(int requestCode,
                                int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == PLACE_AUTOCOMPLETE_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
        final Place place = PlacePicker.getPlace(this, data);
        selectedPlace.setText(place.getName().toString().toUpperCase());
    } else {
        Toast.makeText(MainActivity.this, "Could not get location.", Toast.LENGTH_SHORT).show();
    }
}

activity_main.xml 中

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

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/selected_place"/>

</LinearLayout>

該 PlaceAutocomplete 將自動啟動，然後你可以選擇從結果將只能是型別的地方地區和只屬於指定的國家。也可以通過單擊按鈕啟動意圖。