6
我一直在尝试解决这一段时间。我想在我的动态壁纸中使用MapView v2，到目前为止，我的结果是底部带有谷歌徽标的黑色屏幕。在动态壁纸中使用谷歌的MapView v2
我的清单已经所需的权限：
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
和元数据：
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="@string/google_maps_key" />
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
而且我也试过在其他一些MapView的相关问题，建议将硬件加速：
android:hardwareAccelerated="false"
而且我可以证实，Maps API密钥的确是正确的，因为我有一个正确呈现（而不是在wallaper服务，但在测试活动）一MapFragment：
WallpaperService.Engine代码：
private class ENGINE extends Engine implements OnMapReadyCallback,
GoogleMap.SnapshotReadyCallback {
private final String LOG_TAG = ENGINE.class.getSimpleName();
private int width = 0;
private int height = 0;
private SurfaceHolder holder;
private boolean visible;
private Bitmap bitmap;
private final Handler handler = new Handler();
private final Runnable drawRunner = new Runnable() {
@Override
public void run() {
draw();
}
};
MapView mapView;
GoogleMap map;
private static final int FPS = 5000;
@Override
public void onCreate(SurfaceHolder surfaceHolder) {
super.onCreate(surfaceHolder);
this.holder = surfaceHolder;
this.width = getDesiredMinimumWidth();
this.height = getDesiredMinimumHeight();
int margin = 100;
Rect rect = new Rect();
rect.set(margin, margin, width, height);
mapView = new MapView(getApplicationContext());
mapView.onCreate(new Bundle()); // could this be the problem?
// since onCreate(null) has exact same result
int widthSpec = View.MeasureSpec.makeMeasureSpec(rect.width(), View.MeasureSpec.EXACTLY);
int heightSpec = View.MeasureSpec.makeMeasureSpec(rect.height(), View.MeasureSpec.EXACTLY);
mapView.measure(widthSpec, heightSpec);
mapView.layout(0, 0, rect.width(), rect.height());
Log.d(LOG_TAG, "Width: " + mapView.getMeasuredWidth());
Log.d(LOG_TAG, "Height: " + mapView.getMeasuredHeight());
mapView.onResume();
try {
MapsInitializer.initialize(getApplicationContext());
} catch (Exception e) {
e.printStackTrace();
}
mapView.getMapAsync(this);
}
public ENGINE() {
}
@Override
public void onVisibilityChanged(boolean visible) {
this.visible = visible;
if (visible) {
handler.post(drawRunner);
mapView.onResume();
} else {
handler.removeCallbacks(drawRunner);
mapView.onPause();
}
}
@Override
public void onDestroy() {
super.onDestroy();
mapView.onDestroy();
handler.removeCallbacks(drawRunner);
}
private void draw() {
final Canvas canvas = holder.lockCanvas();
try {
if (canvas != null) {
if (mapView != null) {
mapView.draw(canvas);
Log.d(LOG_TAG, "Drawing Map view on the canvas");
} else {
Paint paint = new Paint();
paint.setColor(getColor(R.color.colorAccent));
paint.setStyle(Paint.Style.FILL);
canvas.drawPaint(paint);
}
}
} finally {
if (canvas != null)
holder.unlockCanvasAndPost(canvas);
}
handler.removeCallbacks(drawRunner);
if (visible) {
handler.postDelayed(drawRunner, FPS);
}
}
@Override
public void onSnapshotReady(Bitmap bitmap) {
// never reaches here
this.bitmap = bitmap;
Log.d(LOG_TAG, "Bitmap ready");
}
@Override
public void onMapReady(GoogleMap googleMap) {
this.map = googleMap;
//this.map.setMyLocationEnabled(true);
this.map.getUiSettings().setZoomControlsEnabled(true);
this.map.getUiSettings().setMyLocationButtonEnabled(true);
this.map.getUiSettings().setCompassEnabled(true);
this.map.getUiSettings().setRotateGesturesEnabled(false);
this.map.getUiSettings().setZoomGesturesEnabled(false);
Log.d(LOG_TAG, "Map is ready");
double latitude = 56.875300;
double longitude = -76.783658;
LatLng marker = new LatLng(latitude, longitude);
this.map.addMarker(new MarkerOptions().position(marker).title("Marker Title"));
this.map.snapshot(this);
// I tried using map's snapshot to render it, however this callback never returns a value
}
}
logcat中不显示在可能是什么问题
07-14 10:26:39.213 3167-3167/removed.for.privacy I/Google Maps
Android API: Google Play services package version: 11055440
07-14 10:26:39.398 3167-3195/removed.for.privacy D/OpenGLRenderer:
endAllActiveAnimators on 0x75f689e800 (RippleDrawable) with handle
0x75f65bede0
07-14 10:27:02.772 3167-3167/removed.for.privacy I/Google Maps
Android API: Google Play services package version: 11055440
07-14 10:27:02.838 3167-3167/removed.for.privacy
D/ENGINE : Width: 980
07-14 10:27:02.838 3167-3167/removed.for.privacy
D/ENGINE : Height: 1820
07-14 10:27:02.867 3167-3167/removed.for.privacy
D/ENGINE : Map is ready
07-14 10:27:02.885 3167-3195/removed.for.privacy D/OpenGLRenderer:
endAllActiveAnimators on 0x75f689ec00 (RippleDrawable) with handle
0x75e6820020
07-14 10:27:02.900 3167-3167/removed.for.privacy
D/ENGINE : Drawing Map view on the canvas
07-14 10:27:07.955 3167-3167/removed.for.privacy
D/ENGINE : Drawing Map view on the canvas
我知道WallpaperService并不是用于常规用户界面元素，但是可以使用它们，并且我可以成功使用TextView等。这是否是对MapView的有意限制，我打死了一匹死马？谢谢