谷歌google place map 地址選擇器

//谷歌地址選擇器， PlaceAutocomplete 已經過時被廢棄？用不了了。用最新的Autocomplete

Migration Guide:-https://developers.google.com/places/android-sdk/client-migration 

     Follows this steps to implement AutoComplete in your project :-

    There is two way to implement to AutoComplete .

     1. Using Intent
     2. Using AutocompleteFragment

    In  both case follow these steps:-

     1. Add this line in build.gradle file

    //主要是這個
    dependencies {
      implementation 'com.google.android.libraries.places:places:1.0.0'
    }

     2. Add other dependencies if required in your project.

    //可以不需要
    dependencies {
      implementation 'com.google.android.libraries.places:places-compat:1.0.0'
    }

     //可以不需要
    implementation 'com.google.android.gms:play-services-places:16.0.0'

     3. // Add an import statement for the client library.

    import com.google.android.libraries.places.api.Places;

    // Initialize Places.

    Places.initialize(getApplicationContext(), apiKey);

    // Create a new Places client instance.

    PlacesClient placesClient = Places.createClient(this);

    ----------Now Choose any of the method you want to implement in your project.-----

    ## Using Intent ##


     //必須要初始化Places,否則運行出錯。在application執行。先執行下面的語句，再執行createClient()
     if (!Places.isInitialized()) {
            Places.initialize(getApplicationContext(), "YOUR_API_KEY");
        }

        ...

        // Set the fields to specify which types of place data to return.
        List<Place.Field> fields = Arrays.asList(Place.Field.ID, Place.Field.NAME);

        // Start the autocomplete intent.
        Intent intent = new Autocomplete.IntentBuilder(
                AutocompleteActivityMode.FULLSCREEN, fields)
                .build(this);
        startActivityForResult(intent, AUTOCOMPLETE_REQUEST_CODE);


    and OnActivityResult method-------


        /**
         * Override the activity's onActivityResult(), check the request code, and
         * do something with the returned place data (in this example it's place name and place ID).
         */
        @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            if (requestCode == AUTOCOMPLETE_REQUEST_CODE) {
                if (resultCode == RESULT_OK) {
                    Place place = Autocomplete.getPlaceFromIntent(data);
                    Log.i(TAG, "Place: " + place.getName() + ", " + place.getId());
                } else if (resultCode == AutocompleteActivity.RESULT_ERROR) {
                    // TODO: Handle the error.
                    Status status = Autocomplete.getStatusFromIntent(data);
                    Log.i(TAG, status.getStatusMessage());
                } else if (resultCode == RESULT_CANCELED) {
                    // The user canceled the operation.
                }
            }
        }



    ## Using Fregment ##

    Initialize this Autocomplete Fregment on .xml file

    <fragment
      android:id="@+id/autocomplete_fragment"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:name=
    "com.google.android.libraries.places.widget.AutocompleteSupportFragment"
      />

 -------------- and on .class file-------------------------- 


Initialize Places, passing the application context and your API key.
Initialize the AutocompleteSupportFragment.

Call setPlaceFields() to indicate the types of place data that you want to get.
Add a PlaceSelectionListener to do something with the result, as well as handle any errors that might occur.

The following example shows adding an autocomplete widget to an activity:


/**
 * Initialize Places. For simplicity, the API key is hard-coded. In a production
 * environment we recommend using a secure mechanism to manage API keys.
 */


if (!Places.isInitialized()) {
    Places.initialize(getApplicationContext(), "YOUR_API_KEY");
}


// Initialize the AutocompleteSupportFragment.

AutocompleteSupportFragment autocompleteFragment = (AutocompleteSupportFragment)
        getSupportFragmentManager().findFragmentById(R.id.autocomplete_fragment);


autocompleteFragment.setPlaceFields(Arrays.asList(Place.Field.ID, Place.Field.NAME));


autocompleteFragment.setOnPlaceSelectedListener(new PlaceSelectionListener() {
    @Override
    public void onPlaceSelected(Place place) {
        // TODO: Get info about the selected place.
        Log.i(TAG, "Place: " + place.getName() + ", " + place.getId());
    }

    @Override
    public void onError(Status status) {
        // TODO: Handle the error.
        Log.i(TAG, "An error occurred: " + status);
    }
});