private GoogleMap mMap;
我从MainActivity开始一个活动:
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.nav_car) {
Intent detailIntent = new Intent(this, Map_Activity.class);
startActivity(detailIntent);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawerLayout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
一切正常,直到我得到(Error:(222,97)error:在这里找不到符号方法getMap():
private void setUpMap() {
if (mMap == null) {
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
mMap.setMyLocationEnabled(true);
mMap.setOnMyLocationChangeListener(this);
}
}
请帮我解决这个问题!
private void setUpMapIfNeeded() {
if (mMap == null) {
SupportMapFragment mapFrag = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map));
mapFrag.getMapAsync(this);
if (mMap != null) {
setUpMap();
}
}
}
getMap()
不推荐使用 getMapAsync()
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