Question

我有一个带有三个按钮的初始窗口的应用程序。当我点击其中一个时，我会在加载Google Map V2并在其上绘制一些标记时启动进度对话框。

在onMapReady回调中，我关闭了进度对话框：

@Override
public void onMapReady(final GoogleMap map) {

    Log.i(MyMoneyBackActivity.TAG, "ShopsMapActivity onMapReady");

    GMap = map;


    if (needsInit) {
      CameraUpdate center=
          CameraUpdateFactory.newLatLng(new LatLng(CAMERA_LAT,
                                               CAMERA_LNG));
      CameraUpdate zoom=CameraUpdateFactory.zoomTo(12f);

      map.moveCamera(center);
      map.animateCamera(zoom);
    }


    // Enabling MyLocation Layer of Google Map
    map.setMyLocationEnabled(true);

    // Clears all the existing coordinates
    map.clear();        

    // Creating a criteria object to retrieve provider
    Criteria criteria = new Criteria();

    // Getting the name of the best provider
    provider = mLocationManager.getBestProvider(criteria, true);

    // Get best last location measurement
    mBestReading = bestLastKnownLocation(MIN_LAST_READ_ACCURACY, FIVE_MIN);

    mLocationManager.requestLocationUpdates(provider, 20000, 0, this);

    Log.i(MyMoneyBackActivity.TAG, "Map");


    Geocoder geoCoder = new Geocoder(ShopsMapActivity.this, Locale.getDefault());

    if ( geoCoder.isPresent() )
        Log.i(MyMoneyBackActivity.TAG, "Geocoder available");
    else
        Log.i(MyMoneyBackActivity.TAG, "Geocoder NOT available");


    // Add a marker for every shop

    for (ShopElement rec : MyMoneyBackActivity.shopElementsList) { 

        //String addressStr = "Aquileia 39,Udine,Italy"; 
        String addressStr = rec.getaddress() + "," + rec.getcity() +",Italy";
        Log.i(MyMoneyBackActivity.TAG, "addressStr -" + addressStr + "-");


          try {
              List<Address> addresses = geoCoder.getFromLocationName(addressStr, 1); 
              if (addresses.size() >  0) {
                 latitude = addresses.get(0).getLatitude(); 
                 longitude = addresses.get(0).getLongitude(); 
             }

          } catch (IOException e) { // TODO Auto-generated catch block
              e.printStackTrace(); 
         }

        Log.i(MyMoneyBackActivity.TAG, "Position : " + latitude + " " + longitude);

        point = new LatLng(latitude, longitude);                
        // Add a new marker for this shop
        drawMarker(map, point, rec, "");


    }

    map.setInfoWindowAdapter(new PopupAdapter(this,
                                              getLayoutInflater(),
                                              images));
    //point = new LatLng(CAMERA_LAT, CAMERA_LNG);               
    //drawMarker(map, point, null, "Centro");

    // Display last reading information
    if(mBestReading!=null){
            onLocationChanged(mBestReading);
    }

    if (MyMoneyBackActivity.progressDialog.isShowing()) {
        MyMoneyBackActivity.progressDialog.dismiss();
        MyMoneyBackActivity.progressDialog = null;
    }


}

但是，在实际绘制地图之前，我在几十秒内得到的是一个完全黑屏。

Answer 1

检查它是否适用于Google Play服务6.7.76 - 请参阅此处https://code.google.com/p/gmaps-api-issues/issues/detail?id=7679。

Answer 2

硬件加速和大堆是我的问题。我从应用程序级别删除它们并在他们使用的活动中使用它们。

问题发生在Manifest。

<application
        android:label="@string/app_name"
        android:theme="@style/AppTheme"
        android:hardwareAccelerated="false"
        android:largeHeap="true">

从Manifest移除并在Activity

中使用

<activity
        android:name="com.mycompayname.activities.SignUpActivity"
        android:hardwareAccelerated="false"
        android:largeHeap="true"/>

Android Google地图在加载前显示黑屏

2 个答案: