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java - 抽屉导航不显示但仍在打开

转载 作者:塔克拉玛干 更新时间:2023-11-02 21:16:17 25 4
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我正在使用包含 MapView 的 Nutiteq SDK,并且我也在尝试使用抽屉导航。我遇到的问题是,每当我从左侧滑动或单击图标打开抽屉时,什么都不会打开,但我无法移动 map ,直到我向后滑动抽屉或再次单击该图标。这让我相信抽屉正在打开但没有展示。这是我的 MainActivity.java 和 activity_main.xml:

主 Activity .java

public class MainActivity extends Activity {

private MapView mapView;
private LocationListener locationListener;
private GeometryLayer locationLayer;
private Timer locationTimer;

private String[] drawerListViewItems;
private ListView drawerListView;
private DrawerLayout drawerLayout;
private ActionBarDrawerToggle actionBarDrawerToggle;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

setMap();

// get list items from strings.xml
drawerListViewItems = getResources().getStringArray(R.array.items);

// get ListView defined in activity_main.xml
drawerListView = (ListView) findViewById(R.id.left_drawer);

// Set the adapter for the list view
drawerListView.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_listview_item, drawerListViewItems));

// App Icon
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

actionBarDrawerToggle = new ActionBarDrawerToggle(
this, /* host Activity */
drawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer icon to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description */
R.string.drawer_close /* "close drawer" description */
);

// Set actionBarDrawerToggle as the DrawerListener
drawerLayout.setDrawerListener(actionBarDrawerToggle);

getActionBar().setDisplayHomeAsUpEnabled(true);

// just styling option add shadow the right edge of the drawer
drawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);


}

@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
actionBarDrawerToggle.onConfigurationChanged(newConfig);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

// call ActionBarDrawerToggle.onOptionsItemSelected(), if it returns true
// then it has handled the app icon touch event
if (actionBarDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}

@Override
public Object onRetainNonConfigurationInstance() {
Log.debug("onRetainNonConfigurationInstance");
return this.mapView.getComponents();
}

@Override
protected void onStart() {
super.onStart();

// 4. Start the map - mandatory.
mapView.startMapping();

// Create layer for location circle
locationLayer = new GeometryLayer(mapView.getLayers().getBaseProjection());
mapView.getComponents().layers.addLayer(locationLayer);

// add GPS My Location functionality
final MyLocationCircle locationCircle = new MyLocationCircle(locationLayer);
initGps(locationCircle);

// Run animation
locationTimer = new Timer();
locationTimer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
locationCircle.update(mapView.getZoom());
}
}, 0, 50);
}

@Override
protected void onStop() {
// Stop animation
locationTimer.cancel();

// Remove created layer
mapView.getComponents().layers.removeLayer(locationLayer);

// remove GPS support, otherwise we will leak memory
deinitGps();

// Note: it is recommended to move startMapping() call to onStart method and implement onStop method (call MapView.stopMapping() from onStop).
mapView.stopMapping();

super.onStop();
}

@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
actionBarDrawerToggle.syncState();
}

@Override
protected void onDestroy() {
super.onDestroy();
}

protected void initGps(final MyLocationCircle locationCircle) {
final Projection proj = mapView.getLayers().getBaseLayer().getProjection();

locationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
locationCircle.setLocation(proj, location);
locationCircle.setVisible(true);

// recenter automatically to GPS point
// TODO in real app it can be annoying this way, add extra control that it is done only once
mapView.setFocusPoint(mapView.getLayers().getBaseProjection().fromWgs84(location.getLongitude(), location.getLatitude()));
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
Log.debug("GPS onStatusChanged "+provider+" to "+status);
}

@Override
public void onProviderEnabled(String provider) {
Log.debug("GPS onProviderEnabled");
}

@Override
public void onProviderDisabled(String provider) {
Log.debug("GPS onProviderDisabled");
}
};

LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
List<String> providers = locationManager.getProviders(true);
for(String provider : providers){
locationManager.requestLocationUpdates(provider, 10000, 100, locationListener);
}

}

protected void deinitGps() {
// remove listeners from location manager - otherwise we will leak memory
LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
locationManager.removeUpdates(locationListener);
}

// adjust zooming to DPI, so texts on rasters will be not too small
// useful for non-retina rasters, they would look like "digitally zoomed"
private void adjustMapDpi() {
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
float dpi = metrics.densityDpi;
// following is equal to -log2(dpi / DEFAULT_DPI)
float adjustment = (float) - (Math.log(dpi / DisplayMetrics.DENSITY_HIGH) / Math.log(2));
Log.debug("adjust DPI = "+dpi+" as zoom adjustment = "+adjustment);
mapView.getOptions().setTileZoomLevelBias(adjustment / 2.0f);
}

private void addCartoDbLayer() {

// 5.1 Define styles for all possible geometry types
int color = Color.BLUE;
int minZoom = 5;

final Bitmap pointMarker = UnscaledBitmapLoader.decodeResource(getResources(), R.drawable.point);
final StyleSet<PointStyle> pointStyleSet = new StyleSet<PointStyle>();
PointStyle pointStyle = PointStyle.builder().setBitmap(pointMarker).setSize(0.05f).setColor(color).setPickingSize(0.2f).build();
pointStyleSet.setZoomStyle(minZoom, pointStyle);

final StyleSet<LineStyle> lineStyleSet = new StyleSet<LineStyle>();
LineStyle lineStyle = LineStyle.builder().setWidth(0.04f).setColor(Color.WHITE).build();
lineStyleSet.setZoomStyle(minZoom, lineStyle);

final StyleSet<PolygonStyle> polygonStyleSet = new StyleSet<PolygonStyle>(null);
PolygonStyle polygonStyle = PolygonStyle.builder().setColor(0xFFFF6600 & 0x80FFFFFF).setLineStyle(lineStyle).build();
polygonStyleSet.setZoomStyle(minZoom, polygonStyle);

String account = "bitciv";
String table = "units"; // kihelkonnad_1897, maakond_20120701
String columns = "cartodb_id,name,iso2,pop2005,area,the_geom_webmercator"; // NB! always include cartodb_id and the_geom_webmercator
//String columns = "cartodb_id,job,the_geom_webmercator";
int limit = 5000; // max number of objects
String sql = "SELECT "+columns+" FROM "+table+" WHERE the_geom_webmercator && ST_SetSRID('BOX3D(!bbox!)'::box3d, 3857) LIMIT "+limit;

// String sql2 = "SELECT name, type, oneway, osm_id, the_geom_webmercator FROM osm_roads WHERE type in ('trunk','primary') AND the_geom_webmercator && ST_SetSRID('BOX3D(!bbox!)'::box3d, 3857) LIMIT 500";
// String sql2 = "SELECT name, type, oneway, osm_id, the_geom_webmercator FROM osm_roads WHERE the_geom_webmercator && ST_SetSRID('BOX3D(!bbox!)'::box3d, 3857) LIMIT 500";

CartoDbDataSource cartoDataSource = new CartoDbDataSource(mapView.getLayers().getBaseLayer().getProjection(), account, sql) {

@Override
protected Label createLabel(Map<String, String> userData) {
StringBuffer labelTxt = new StringBuffer();
for (Map.Entry<String, String> entry : userData.entrySet()){
labelTxt.append(entry.getKey() + ": " + entry.getValue() + "\n");
}
return new DefaultLabel("Data:", labelTxt.toString());
}

@Override
protected StyleSet<PointStyle> createPointStyleSet(Map<String, String> userData, int zoom) {
return pointStyleSet;
}

@Override
protected StyleSet<LineStyle> createLineStyleSet(Map<String, String> userData, int zoom) {
return lineStyleSet;
}

@Override
protected StyleSet<PolygonStyle> createPolygonStyleSet(Map<String, String> userData, int zoom) {
return polygonStyleSet;
}

};

GeometryLayer cartoLayerTrunk = new GeometryLayer(cartoDataSource);
mapView.getLayers().addLayer(cartoLayerTrunk);

}

private void setMap(){

// enable logging for troubleshooting - optional
Log.enableAll();
Log.setTag("hellomap");

// 1. Get the MapView from the Layout xml - mandatory
mapView = (MapView) findViewById(R.id.mapView);

// Optional, but very useful: restore map state during device rotation,
// it is saved in onRetainNonConfigurationInstance() below
Components retainObject = (Components) getLastNonConfigurationInstance();
if (retainObject != null) {
// just restore configuration and update listener, skip other initializations
mapView.setComponents(retainObject);
return;
} else {
// 2. create and set MapView components - mandatory
mapView.setComponents(new Components());
}

// 3. Define map layer for basemap - mandatory.
// Here we use MapQuest open tiles.
// We use online data source for the tiles and the URL is given as template. Almost all online tiled maps use EPSG3857 projection.
RasterDataSource dataSource = new HTTPRasterDataSource(new EPSG3857(), 0, 18, "http://otile1.mqcdn.com/tiles/1.0.0/osm/{zoom}/{x}/{y}.png");

RasterLayer mapLayer = new RasterLayer(dataSource, 0);

mapView.getLayers().setBaseLayer(mapLayer);

adjustMapDpi();

// Show performance indicator
//mapView.getOptions().setFPSIndicator(true);

// Increase raster tile download speed by doing 4 downloads in parallel
//mapView.getOptions().setRasterTaskPoolSize(4);

// set initial map view camera - optional. "World view" is default
// Location: San Francisco
// NB! it must be in base layer projection (EPSG3857), so we convert it from lat and long
mapView.setFocusPoint(mapView.getLayers().getBaseLayer().getProjection().fromWgs84(-122.41666666667f, 37.76666666666f));
// rotation - 0 = north-up
mapView.setMapRotation(0f);
// zoom - 0 = world, like on most web maps
mapView.setZoom(16.0f);
// tilt means perspective view. Default is 90 degrees for "normal" 2D map view, minimum allowed is 30 degrees.
mapView.setTilt(65.0f);

// Activate some mapview options to make it smoother - optional
mapView.getOptions().setPreloading(true);
mapView.getOptions().setSeamlessHorizontalPan(true);
mapView.getOptions().setTileFading(true);
mapView.getOptions().setKineticPanning(true);
mapView.getOptions().setDoubleClickZoomIn(true);
mapView.getOptions().setDualClickZoomOut(true);

// set sky bitmap - optional, default - white
mapView.getOptions().setSkyDrawMode(Options.DRAW_BITMAP);
mapView.getOptions().setSkyOffset(4.86f);
mapView.getOptions().setSkyBitmap(
UnscaledBitmapLoader.decodeResource(getResources(),
R.drawable.sky_small));

// Map background, visible if no map tiles loaded - optional, default - white
mapView.getOptions().setBackgroundPlaneDrawMode(Options.DRAW_BITMAP);
mapView.getOptions().setBackgroundPlaneBitmap(
UnscaledBitmapLoader.decodeResource(getResources(),
R.drawable.background_plane));
mapView.getOptions().setClearColor(Color.WHITE);

// configure texture caching - optional, suggested
mapView.getOptions().setTextureMemoryCacheSize(40 * 1024 * 1024);
mapView.getOptions().setCompressedMemoryCacheSize(8 * 1024 * 1024);

// define online map persistent caching - optional, suggested. Default - no caching
mapView.getOptions().setPersistentCachePath(this.getDatabasePath("mapcache").getPath());
// set persistent raster cache limit to 100MB
mapView.getOptions().setPersistentCacheSize(100 * 1024 * 1024);

/* // 5. Add simple marker to map.
// define marker style (image, size, color)
Bitmap pointMarker = UnscaledBitmapLoader.decodeResource(getResources(), R.drawable.olmarker);
MarkerStyle markerStyle = MarkerStyle.builder().setBitmap(pointMarker).setSize(0.5f).setColor(Color.WHITE).build();

// define label what is shown when you click on marker
Label markerLabel = new DefaultLabel("San Francisco", "Here is a marker");

// define location of the marker, it must be converted to base map coordinate system
MapPos markerLocation = mapLayer.getProjection().fromWgs84(-122.416667f, 37.766667f);

// create layer and add object to the layer, finally add layer to the map.
// All overlay layers must be same projection as base layer, so we reuse it
MarkerLayer markerLayer = new MarkerLayer(mapLayer.getProjection());
markerLayer.add(new Marker(markerLocation, markerLabel, markerStyle, null));
mapView.getLayers().addLayer(markerLayer); */

// add event listener
MyMapEventListener mapListener = new MyMapEventListener(this, mapView);
mapView.getOptions().setMapListener(mapListener);

// 5. Add CartoDB vector layer to map
addCartoDbLayer();

}

activity_main.xml

<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<!-- The main content view -->

<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<com.nutiteq.MapView
android:id="@+id/mapView"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />

</FrameLayout>

<!-- The navigation drawer -->

<ListView android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"
android:background="#111"/>



</android.support.v4.widget.DrawerLayout>

最佳答案

我对 Android Drawer 示例应用进行了同样的尝试,并将 ImageView 替换为 MapView。这对我来说很好,请参见下面的屏幕截图。也许问题是你把 MapView 直接放到 main Layout 上了?请像示例应用中那样通过 Fragment 尝试。

screenshot with working sample .

关于java - 抽屉导航不显示但仍在打开,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/23835817/

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