导航抽屉与显示当前位置的地图的链接不起作用
Linking of navigation drawer with map which show current location is not working
这是主要的Activity
package com.example.safna.tracker5;
import android.graphics.Color;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.util.Log;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
public static TextView data;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
data=(TextView) findViewById(R.id.desc);
fetchData process=new fetchData();
process.execute();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
地图Activity
package com.example.safna.tracker5;
import android.graphics.Color;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.util.Log;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
public static TextView data;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
data=(TextView) findViewById(R.id.desc);
fetchData process=new fetchData();
process.execute();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
这是我的 activity 文件；
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".MainActivity"
tools:showIn="@layout/app_bar_main">
<TextView
android:id="@+id/textview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:layout_editor_absoluteX="19dp"
tools:layout_editor_absoluteY="165dp">
<Switch
android:id="@+id/switch2"
android:layout_width="191dp"
android:layout_height="42dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="102dp"
android:layout_marginTop="469dp"
android:showText="true"
android:splitTrack="false"
android:switchMinWidth="@android:dimen/notification_large_icon_height"
android:text="Mode"
android:textOff="Offline"
android:textOn="Online"
tools:checked="false" />
<include
layout="@layout/activity_maps"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="350dp"
android:background="#FFFAFA"
app:layout_behavior="@string/bottom_sheet_behavior"
app:behavior_hideable="false"
app:behavior_peekHeight="55dp">
<TableLayout android:id="@+id/table"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:focusableInTouchMode="true"
android:focusable="true">
<TextView android:id="@+id/req1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="View Requests"
android:padding="16dp"
android:textSize="20sp"
android:textColor="#2E8B57"
android:textStyle="bold"
/>
<TextView
android:id="@+id/desc"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:textSize="16sp"
android:text="Service Request \n \n"/>
</TableLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
当前位置适用于单独的应用程序。但是当它与导航抽屉集成时它不起作用。
我在 contentmain.xml 上添加了底部 sheet，它显示了一些数据并显示了 google 地图。但它没有显示当前位置。没有错误
看来问题出在您的布局上。您可以使用 LinearLayout 来解决这个问题。
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
tools:layout_editor_absoluteX="19dp"
tools:layout_editor_absoluteY="165dp">
<Switch
android:id="@+id/switch2"
android:layout_width="191dp"
android:layout_height="42dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="102dp"
android:layout_marginTop="469dp"
android:showText="true"
android:splitTrack="false"
android:switchMinWidth="@android:dimen/notification_large_icon_height"
android:text="Mode"
android:textOff="Offline"
android:textOn="Online"
tools:checked="false" />
<include
layout="@layout/activity_maps"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="350dp"
android:background="#FFFAFA"
app:layout_behavior="@string/bottom_sheet_behavior"
app:behavior_hideable="false"
app:behavior_peekHeight="55dp">
<TableLayout android:id="@+id/table"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:focusableInTouchMode="true"
android:focusable="true">
<TextView android:id="@+id/req1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="View Requests"
android:padding="16dp"
android:textSize="20sp"
android:textColor="#2E8B57"
android:textStyle="bold"
/>
<TextView
android:id="@+id/desc"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:textSize="16sp"
android:text="Service Request \n \n"/>
</TableLayout>
</android.support.v4.widget.NestedScrollView>
</LinearLayout>
重要的部分是；
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
weight="1" 属性 将在绘制其他视图后填充页面。
这个应该适合你。
i have add a function called loadMap which show the current location and call
this function in the MainActivity file instead of MapsActivity
private void loadMap() {
SupportMapFragment mapFragment = (SupportMapFragment)
getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
ActivityCompat.requestPermissions(this, new String[]
{Manifest.permission.ACCESS_FINE_LOCATION},
PackageManager.PERMISSION_GRANTED);
ActivityCompat.requestPermissions(this, new String[]
{Manifest.permission.ACCESS_COARSE_LOCATION}
,PackageManager.PERMISSION_GRANTED);
locationListener=new LocationListener() {
@Override
public void onLocationChanged(Location location) {
Log.e("onLocationChanged",
"onLocationChanged===========================");
try {
latLng = new LatLng(location.getLatitude(),
location.getLongitude());
mMap.addMarker(new
MarkerOptions().position(latLng).title("My
Location"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
}
catch (SecurityException e)
{
e.printStackTrace();
}
}
@Override
public void onStatusChanged(String provider, int status,
Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
};
locationManager=
(LocationManager)getSystemService(LOCATION_SERVICE);
try
{
locationManager.requestLocationUpdates
(LocationManager.GPS_PROVIDER,
MIN_TIME,MIN_DIST,locationListener);
}
catch (SecurityException e)
{
e.printStackTrace();
}
}
这是主要的Activity
package com.example.safna.tracker5;
import android.graphics.Color;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.util.Log;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
public static TextView data;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
data=(TextView) findViewById(R.id.desc);
fetchData process=new fetchData();
process.execute();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
地图Activity
package com.example.safna.tracker5;
import android.graphics.Color;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.util.Log;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
public static TextView data;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
data=(TextView) findViewById(R.id.desc);
fetchData process=new fetchData();
process.execute();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
这是我的 activity 文件；
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".MainActivity"
tools:showIn="@layout/app_bar_main">
<TextView
android:id="@+id/textview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:layout_editor_absoluteX="19dp"
tools:layout_editor_absoluteY="165dp">
<Switch
android:id="@+id/switch2"
android:layout_width="191dp"
android:layout_height="42dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="102dp"
android:layout_marginTop="469dp"
android:showText="true"
android:splitTrack="false"
android:switchMinWidth="@android:dimen/notification_large_icon_height"
android:text="Mode"
android:textOff="Offline"
android:textOn="Online"
tools:checked="false" />
<include
layout="@layout/activity_maps"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="350dp"
android:background="#FFFAFA"
app:layout_behavior="@string/bottom_sheet_behavior"
app:behavior_hideable="false"
app:behavior_peekHeight="55dp">
<TableLayout android:id="@+id/table"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:focusableInTouchMode="true"
android:focusable="true">
<TextView android:id="@+id/req1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="View Requests"
android:padding="16dp"
android:textSize="20sp"
android:textColor="#2E8B57"
android:textStyle="bold"
/>
<TextView
android:id="@+id/desc"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:textSize="16sp"
android:text="Service Request \n \n"/>
</TableLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
当前位置适用于单独的应用程序。但是当它与导航抽屉集成时它不起作用。
我在 contentmain.xml 上添加了底部 sheet，它显示了一些数据并显示了 google 地图。但它没有显示当前位置。没有错误
看来问题出在您的布局上。您可以使用 LinearLayout 来解决这个问题。
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
tools:layout_editor_absoluteX="19dp"
tools:layout_editor_absoluteY="165dp">
<Switch
android:id="@+id/switch2"
android:layout_width="191dp"
android:layout_height="42dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="102dp"
android:layout_marginTop="469dp"
android:showText="true"
android:splitTrack="false"
android:switchMinWidth="@android:dimen/notification_large_icon_height"
android:text="Mode"
android:textOff="Offline"
android:textOn="Online"
tools:checked="false" />
<include
layout="@layout/activity_maps"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="350dp"
android:background="#FFFAFA"
app:layout_behavior="@string/bottom_sheet_behavior"
app:behavior_hideable="false"
app:behavior_peekHeight="55dp">
<TableLayout android:id="@+id/table"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:focusableInTouchMode="true"
android:focusable="true">
<TextView android:id="@+id/req1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="View Requests"
android:padding="16dp"
android:textSize="20sp"
android:textColor="#2E8B57"
android:textStyle="bold"
/>
<TextView
android:id="@+id/desc"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:textSize="16sp"
android:text="Service Request \n \n"/>
</TableLayout>
</android.support.v4.widget.NestedScrollView>
</LinearLayout>
重要的部分是；
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
weight="1" 属性 将在绘制其他视图后填充页面。
这个应该适合你。
i have add a function called loadMap which show the current location and call
this function in the MainActivity file instead of MapsActivity
private void loadMap() {
SupportMapFragment mapFragment = (SupportMapFragment)
getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
ActivityCompat.requestPermissions(this, new String[]
{Manifest.permission.ACCESS_FINE_LOCATION},
PackageManager.PERMISSION_GRANTED);
ActivityCompat.requestPermissions(this, new String[]
{Manifest.permission.ACCESS_COARSE_LOCATION}
,PackageManager.PERMISSION_GRANTED);
locationListener=new LocationListener() {
@Override
public void onLocationChanged(Location location) {
Log.e("onLocationChanged",
"onLocationChanged===========================");
try {
latLng = new LatLng(location.getLatitude(),
location.getLongitude());
mMap.addMarker(new
MarkerOptions().position(latLng).title("My
Location"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
}
catch (SecurityException e)
{
e.printStackTrace();
}
}
@Override
public void onStatusChanged(String provider, int status,
Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
};
locationManager=
(LocationManager)getSystemService(LOCATION_SERVICE);
try
{
locationManager.requestLocationUpdates
(LocationManager.GPS_PROVIDER,
MIN_TIME,MIN_DIST,locationListener);
}
catch (SecurityException e)
{
e.printStackTrace();
}
}