我想将地图视图设置为全屏，我已经完成了所有必要的事情，例如将框架布局和地图视图都设置为 matchparent 但是当我在手机上运行应用程序时仍然只有一部分（可能 60dp 是高度但宽度是全屏) 的地图可见。
这是我的一些布局 xml 文件。
//// 对于片段映射 ///////////
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MapFragment">
<fragment
android:name="com.google.android.gms.maps.SupportMapFragment"
android:id="@+id/frg"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
//// 对于片段映射 ///////////
//// 用于 java 片段映射代码 //////
public class MapFragment extends Fragment {
public MapFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
final View rootView = inflater.inflate(R.layout.fragment_map, container, false);
SupportMapFragment mapFragment = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.frg); //use SuppoprtMapFragment for using in fragment instead of activity MapFragment = activity SupportMapFragment = fragment
mapFragment.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(GoogleMap mMap) {
LatLng customMarkerLocationOne = new LatLng(15.492554, 120.972169);
LatLng customMarkerLocationTwo = new LatLng(15.483516, 120.962996);
LatLng customMarkerLocationThree = new LatLng(15.486315, 120.973318);
LatLng customMarkerLocationFour = new LatLng(15.485838, 120.972290);
mMap.addMarker(new MarkerOptions().position(customMarkerLocationOne).
icon(BitmapDescriptorFactory.fromBitmap(
createCustomMarker(rootView.getContext(),R.drawable.yumin,"Yumin")))).setTitle("Korean Food House");
mMap.addMarker(new MarkerOptions().position(customMarkerLocationTwo).
icon(BitmapDescriptorFactory.fromBitmap(
createCustomMarker(rootView.getContext(),R.drawable.puregold,"Puregold")))).setTitle("Grocery Store");
mMap.addMarker(new MarkerOptions().position(customMarkerLocationThree).
icon(BitmapDescriptorFactory.fromBitmap(
createCustomMarker(rootView.getContext(),R.drawable.mrsg,"Mrs. G")))).setTitle("Cake Shop");
mMap.addMarker(new MarkerOptions().position(customMarkerLocationFour).
icon(BitmapDescriptorFactory.fromBitmap(
createCustomMarker(rootView.getContext(),R.drawable.actron,"Actron")))).setTitle("Electronic Shop");
//LatLngBound will cover all your marker on Google Maps
LatLngBounds.Builder builder = new LatLngBounds.Builder();
builder.include(customMarkerLocationOne); //Taking Point A (First LatLng)
builder.include(customMarkerLocationThree); //Taking Point B (Second LatLng)
LatLngBounds bounds = builder.build();
CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, 200);
mMap.moveCamera(cu);
mMap.animateCamera(CameraUpdateFactory.zoomTo(14), 2000, null);
}
});
return rootView;
}
public static Bitmap createCustomMarker(Context context, @DrawableRes int resource, String _name) {
View marker = ((LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.bitmap_google_marker_layout_item, null);
CircleImageView markerImage = (CircleImageView) marker.findViewById(R.id.user_dp);
markerImage.setImageResource(resource);
TextView txt_name = (TextView)marker.findViewById(R.id.name);
txt_name.setText(_name);
DisplayMetrics displayMetrics = new DisplayMetrics();
((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
marker.setLayoutParams(new ViewGroup.LayoutParams(52, ViewGroup.LayoutParams.WRAP_CONTENT));
marker.measure(displayMetrics.widthPixels, displayMetrics.heightPixels);
marker.layout(0, 0, displayMetrics.widthPixels, displayMetrics.heightPixels);
marker.buildDrawingCache();
Bitmap bitmap = Bitmap.createBitmap(marker.getMeasuredWidth(), marker.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
marker.draw(canvas);
return bitmap;
}
}
//// 用于 java 片段映射代码 ///////////
//// 用于 Home Activity ///////////
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".HomeBuyersActivity">
<EditText
android:id="@+id/search_bar_home"
android:layout_width="0dp"
android:layout_height="30dp"
android:layout_marginStart="32dp"
android:layout_marginEnd="8dp"
android:background="@drawable/search_card"
android:elevation="3dp"
android:ems="10"
android:textSize="12sp"
android:inputType="textPersonName"
android:padding="4dp"
android:textColor="#333333"
app:layout_constraintBottom_toBottomOf="@+id/search_icon_home"
app:layout_constraintEnd_toStartOf="@+id/search_icon_home"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/search_icon_home" />
<ImageView
android:id="@+id/search_icon_home"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginEnd="50dp"
android:background="@drawable/searchhh"
android:elevation="3dp"
android:tint="#333333"
app:layout_constraintBottom_toBottomOf="@+id/cart_icon_home"
app:layout_constraintEnd_toStartOf="@+id/cart_icon_home"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="1.0" />
<ImageView
android:id="@+id/cart_icon_home"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:background="@drawable/icon_for_cart"
android:elevation="3dp"
android:textAlignment="textEnd"
android:tint="#333333"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ScrollView
android:id="@+id/fragment_container"
android:layout_width="0dp"
android:layout_height="0px"
app:layout_constraintBottom_toTopOf="@+id/nav_view"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/nav_view"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_marginStart="0dp"
android:layout_marginEnd="0dp"
android:background="@drawable/card_white_sharp_edges"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/bottom_nav_menu" />
</androidx.constraintlayout.widget.ConstraintLayout>
//// 用于 Home Activity ///////////
//// 对于 Home Activity Java ///////////
public class HomeBuyersActivity extends AppCompatActivity {
private FirebaseAuth mAuth;
private CallbackManager callbackManager;
private String TAG = "";
private EditText search_bar_home;
private ImageView search_icon_home, cart_icon_home;
private Toolbar toolbar;
private boolean mLocationPermissionGranted = false;
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
mAuth = FirebaseAuth.getInstance();
callbackManager = CallbackManager.Factory.create();
search_bar_home = findViewById(R.id.search_bar_home);
search_icon_home = findViewById(R.id.search_icon_home);
cart_icon_home = findViewById(R.id.cart_icon_home);
toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
if (getSupportActionBar() != null) {
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
final Intent intent = getIntent();
final String UserID = intent.getStringExtra("userid");
final String Firstname = intent.getStringExtra("firstname");
final String Lastname = intent.getStringExtra("lastname");
final String Email = intent.getStringExtra("email");
final String Image = intent.getStringExtra("imageurl");
final String ReferralCOde = intent.getStringExtra("refer");
Paper.init(HomeBuyersActivity.this);
final String UserEmailKey = Paper.book().read(Prevalent.UserEmailKey);
final String UserPasswordKey = Paper.book().read(Prevalent.UserPasswordKey);
switch (item.getItemId()) {
case R.id.navigation_home:
HomeFragment fragment = new HomeFragment();
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.setCustomAnimations(R.anim.fade_in, R.anim.fade_out);
fragmentTransaction.commit();
search_bar_home.setVisibility(View.VISIBLE);
search_icon_home.setVisibility(View.VISIBLE);
cart_icon_home.setVisibility(View.VISIBLE);
return true;
case R.id.navigation_map:
MapFragment map = new MapFragment();
Bundle bundlem = new Bundle();
bundlem.putString("firstname", Firstname);
bundlem.putString("lastname", Lastname);
bundlem.putString("imageurl", Image);
bundlem.putString("userid", UserID);
bundlem.putString("email", Email);
bundlem.putString("refer", ReferralCOde);
map.setArguments(bundlem);
FragmentTransaction fragmentTransactionm = getSupportFragmentManager().beginTransaction();
fragmentTransactionm.replace(R.id.fragment_container, map);
fragmentTransactionm.setCustomAnimations(R.anim.fade_in, R.anim.fade_out);
fragmentTransactionm.commit();
search_bar_home.setVisibility(View.INVISIBLE);
search_icon_home.setVisibility(View.INVISIBLE);
cart_icon_home.setVisibility(View.INVISIBLE);
return true;
case R.id.navigation_notifications:
search_bar_home.setVisibility(View.INVISIBLE);
search_icon_home.setVisibility(View.INVISIBLE);
cart_icon_home.setVisibility(View.INVISIBLE);
NotificationFragment nf = new NotificationFragment();
Bundle bundlen = new Bundle();
bundlen.putString("firstname", Firstname);
bundlen.putString("lastname", Lastname);
bundlen.putString("imageurl", Image);
bundlen.putString("userid", UserID);
bundlen.putString("email", Email);
bundlen.putString("refer", ReferralCOde);
nf.setArguments(bundlen);
FragmentTransaction fragmentTransactionn = getSupportFragmentManager().beginTransaction();
fragmentTransactionn.replace(R.id.fragment_container, nf);
fragmentTransactionn.setCustomAnimations(R.anim.fade_in, R.anim.fade_out);
fragmentTransactionn.commit();
return true;
case R.id.navigation_profile:
ProfileFragment fragment1 = new ProfileFragment();
Bundle bundle = new Bundle();
bundle.putString("firstname", Firstname);
bundle.putString("lastname", Lastname);
bundle.putString("imageurl", Image);
bundle.putString("userid", UserID);
bundle.putString("email", Email);
bundle.putString("refer", ReferralCOde);
fragment1.setArguments(bundle);
FragmentTransaction fragmentTransaction1 = getSupportFragmentManager().beginTransaction();
fragmentTransaction1.replace(R.id.fragment_container, fragment1);
fragmentTransaction1.setCustomAnimations(R.anim.fade_in, R.anim.fade_out);
fragmentTransaction1.commit();
search_bar_home.setVisibility(View.INVISIBLE);
search_icon_home.setVisibility(View.INVISIBLE);
cart_icon_home.setVisibility(View.INVISIBLE);
return true;
}
return false;
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_buyers);
BottomNavigationView navView = findViewById(R.id.nav_view);
navView.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
cart_icon_home = findViewById(R.id.cart_icon_home);
search_bar_home = findViewById(R.id.search_bar_home);
search_icon_home = findViewById(R.id.search_icon_home);
final HomeFragment fragment = new HomeFragment();
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
cart_icon_home.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(HomeBuyersActivity.this, MyCartFragment.class);
startActivity(intent);
}
});
}
}