PROSAGA码农传奇-Sahara云大数据-文本到语音 - Android Studio中的Google地图和标记

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    这是实现此目的的演示实现。
  
   <pre>
 <code>
 package demo.maps.texttospeech;

import android.speech.tts.TextToSpeech;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;

import java.util.Locale;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

private GoogleMap mMap;
    private TextToSpeech textToSpeech;

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);

textToSpeech = new TextToSpeech(getApplicationContext(), new TextToSpeech.OnInitListener() {
            @Override
            public void onInit(int status) {
                if (status == TextToSpeech.SUCCESS) {
                    int ttsLang = textToSpeech.setLanguage(Locale.US);

if (ttsLang == TextToSpeech.LANG_MISSING_DATA
                            || ttsLang == TextToSpeech.LANG_NOT_SUPPORTED) {
                        Log.e("TTS", "The Language is not supported!");
                    } else {
                        Log.i("TTS", "Language Supported.");
                    }
                    Log.i("TTS", "Initialization success.");
                } else {
                    Toast.makeText(getApplicationContext(), "TTS Initialization failed!", Toast.LENGTH_SHORT).show();
                }
            }
        });
    }

/**
     * Manipulates the map once available.
     * This callback is triggered when the map is ready to be used.
     * This is where we can add markers or lines, add listeners or move the camera. In this case,
     * we just add a marker near Sydney, Australia.
     * If Google Play services is not installed on the device, the user will be prompted to install
     * it inside the SupportMapFragment. This method will only be triggered once the user has
     * installed Google Play services and returned to the app.
     */
    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

// Add a marker in Sydney and move the camera
        LatLng sydney = new LatLng(-34, 151);
        mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney")).setSnippet("Very nice food here");
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));

mMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
            @Override
            public boolean onMarkerClick(Marker marker) {

String data = marker.getTitle() + " " + marker.getSnippet();
                Log.i("TTS", "button clicked: " + data);
                int speechStatus = textToSpeech.speak(data, TextToSpeech.QUEUE_FLUSH, null);

if (speechStatus == TextToSpeech.ERROR) {
                    Log.e("TTS", "Error in converting Text to Speech!");
                }

return false;
            }
        });
    }
}

</code>
 </pre>
  
    重要的部分是添加setOnMarkerClickListener以获取标记点击事件，然后将您设置为标记的字符串构建为标题和/或片段。
  
  
    并在onCreate中初始化TextToSpeech对象并最终调用
     <code>
 textToSpeech.speak(data, TextToSpeech.QUEUE_FLUSH, null);
 </code>
     在标记的单击侦听器中构建字符串之后。
  
  
    如果有效，请竖起大拇指！
  
  
    干杯!
  
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