Am trying to implement a google map on my app that has other activities but it is not working. When i compile the apk and run it in my phone the map appears blank anybody with an idea. I tried to check my API key but it appears to be okay. I have been working on this for 3days any help?
This are my files
androidmanifest.xml
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<application
android:allowBackup="true"
android:icon="@mipmap/kaps"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".SplashScreen"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".models.StartWatchActivity"
android:label="@string/title_activity_start_watch" >
</activity>
<activity
android:name=".models.PaymentActivity"
android:label="@string/title_activity_payment" >
</activity>
<activity
android:name=".models.LocationActivity"
android:label="@string/title_activity_location" >
</activity>
<activity
android:name=".models.GetCurrentLocation"
android:label="@string/title_activity_get_current_location" >
</activity>
<activity
android:name=".models.ConfirmRegistration"
android:label="@string/title_activity_confirm_registration" >
</activity>
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="*******************************" />
<activity
android:name=".models.MapsActivity"
android:label="@string/title_activity_maps" >
</activity>
</application>
MapActivity.java
import android.location.Address;
import android.location.Geocoder;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import org.w3c.dom.Text;
import java.io.IOException;
import java.util.List;
public class MapsActivity extends FragmentActivity {
private GoogleMap mMap; // Might be null if Google Play services APK is not available.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
setUpMapIfNeeded();
}
@Override
protected void onResume() {
super.onResume();
setUpMapIfNeeded();
}
public void onSearch(View view){
EditText location_tf=(EditText)findViewById(R.id.TFaddress);
String location=location_tf.getText().toString();
List<Address> addressList=null;
if(location !=null ||!location.equals(""))
{
Geocoder geocoder=new Geocoder(this);
try {
addressList=geocoder.getFromLocationName(location, 1);
} catch (IOException e) {
e.printStackTrace();
}
Address address=addressList.get(0);
LatLng latLng=new LatLng(address.getLatitude(),address.getLongitude());
mMap.addMarker(new MarkerOptions().position(latLng).title("Marker"));
mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
}
}
public void onZoom(View view)
{
if (view.getId()==R.id.Bzoomin)
{
mMap.animateCamera(CameraUpdateFactory.zoomIn());
}
if (view.getId()==R.id.Bzoomout)
{
mMap.animateCamera(CameraUpdateFactory.zoomOut());
}
}
public void changeType(View view)
{
if(mMap.getMapType()==GoogleMap.MAP_TYPE_NORMAL)
{
mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
}
else
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
}
private void setUpMapIfNeeded() {
// Do a null check to confirm that we have not already instantiated the map.
if (mMap == null) {
// Try to obtain the map from the SupportMapFragment.
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
// Check if we were successful in obtaining the map.
if (mMap != null) {
setUpMap();
}
}
}
private void setUpMap() {
mMap.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
mMap.setMyLocationEnabled(true);
}
}
locationactivity.java when a button is clicked takes you to the MapActivity
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import com.example.barbegambino.parkcar.R;
public class LocationActivity extends AppCompatActivity {
Button button4,button,button5;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_location);
button4 = (Button) findViewById(R.id.button4);
button = (Button) findViewById(R.id.button);
button5 = (Button) findViewById(R.id.button5);
button4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(LocationActivity.this, GetCurrentLocation.class);
startActivity(intent);
}
});
button5.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(LocationActivity.this, StartWatchActivity.class);
startActivity(intent);
}
});
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent(LocationActivity.this,MapsActivity.class);
startActivity(intent);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_location, 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);
}
}
