I'm following this example from http://developer.android.com to build a simple app to find the last known location. I get the cannot find symbol variable error for the variables, mLastLocation, mLatitudeText and mLongitudeText in the following code snippet in the activity file:
#Override
public void onConnected(Bundle connectionHint) {
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (mLastLocation != null) {
mLatitudeText.setText(String.valueOf(mLastLocation.getLatitude()));
mLongitudeText.setText(String.valueOf(mLastLocation.getLongitude()));
}
}
The variables aren't defined in the sample too. How can I fix this?
You need to define the two mentioned TextView widgets in your UI or main_activity.xml file
....
<TextView
android:text="-"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/textview1"
/>
<TextView
android:text="-"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/textview2"
/>
....
..and then reference them in the code in your MainActivity.java file.
For mLastLocation, well it needs to be Location type, since the function getLastLocation returns a Location type.
public class MainActivity extends ActionBarActivity implements
ConnectionCallbacks, OnConnectionFailedListener {
Location mLastLocation;
TextView mLatitudeText,mLongitudeText;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mLatitudeText=(TextView)findViewById(R.id.textview1);
mLongitudeText=(TextView)findViewById(R.id.textview2);
}
...
#Override
public void onConnected(Bundle connectionHint) {
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
mGoogleApiClient);
if (mLastLocation != null) {
mLatitudeText.setText(String.valueOf(mLastLocation.getLatitude()));
mLongitudeText.setText(String.valueOf(mLastLocation.getLongitude()));
}
}
}
The link to the android developers website isn't pointing to a specific tutorial, so I can speak directly to that one. However, the mLatitudeText and mLongitudeText appear to be simple TextViews. If they aren't created, you can just create them and add them to the activity yourself.
Related
Desired Behavior
In case it affects any answers or suggestions, what I would like to ultimately see in this app is a navigation UI where one of the Fragment is a map. I used a template to start with a navigation UI, which gave me several Fragments, one for each tab. Currently, I'm trying to use the Google API to put a MapView inside of one of those Fragments.
Current Behavior
Generally, this isn't working (obviously). I have everything up and running, but when I pull up the tab with the map in it, the map is blank. Nothing crashes, and no errors are output:
I/Google Maps Android API: Google Play services client version: 12451000
I/Google Maps Android API: Google Play services package version: 201516040
D/NetworkSecurityConfig: No Network Security Config specified, using platform default
I/DynamiteModule: Considering local module com.google.android.gms.googlecertificates:0 and remote module com.google.android.gms.googlecertificates:4
Selected remote version of com.google.android.gms.googlecertificates, version >= 4
Other Details/Troubleshooting
I know that my API key works because I have another app in which the maps work as expected. I doubt I need a second API key, but I looked anyway and since it wasn't overly obvious how to create a second API key, I think that hunch is correct. Most of the code I'm using was copied from that working example; the primary difference is that other example uses a SupportMapFragment and it has a class MapsActivity extends FragmentActivity. Here, since I don't really want to deal with nesting fragments, I'm trying to use a MapView inside that fragment.
What bits of my code that weren't copied largely came from online sources. None of what I've tried has produced better results.
MapView inside fragment is answering a different problem
Creating google maps v2 in a fragment using Navigation Drawer contains only things I already have
android MapView in Fragment gave me the idea to use MapsInitializer.initialize(this.getActivity()); but that didn't help
Mapview in separate fragment android has nothing new
how do i solve integrating google map in fragment in android uses a Fragment not a MapView
I also know that onMapReady is being called. Inside of that, I move the camera and that subsequently calls onCameraMoveStarted. However, it does not enter onCameraMove or onCameraIdle.
Code
This is the code as it is, which uses some of the ideas from the above links. I tried to cut out anything that's unrelated (other fragments, etc)
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.retailtherapy">
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="#string/google_maps_key" />
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:windowSoftInputMode="stateVisible|adjustResize" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
</manifest>
activity_main.xml
<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:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/nav_view"
app:menu="#menu/bottom_nav_menu" />
<fragment
android:id="#+id/nav_host_fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
app:defaultNavHost="true"
app:navGraph="#navigation/mobile_navigation"
tools:context=".MainActivity" />
</androidx.constraintlayout.widget.ConstraintLayout>
mobile_navigation.xml
<navigation 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/mobile_navigation"
app:startDestination="#+id/navigation_map">
<fragment
android:id="#+id/navigation_map"
android:name="com.example.retailtherapy.ui.map.MapFragment"
android:label="Map"
tools:layout="#layout/fragment_map" />
</navigation>
fragment_map.xml
<RelativeLayout
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"
tools:context=".ui.map.MapFragment" >
<com.google.android.gms.maps.MapView
android:id="#+id/googleMap"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
MapFragment.java
public class MapFragment extends Fragment implements OnMapReadyCallback, LocationListener {
/*************************************************************************
*
* M E M B E R S
*
*/
// Location manager for getting current location
private LocationManager mLocationManager = null;
// The map object for reference for ease of adding points and such
private GoogleMap mGoogleMap = null;
private MapView mMapView = null;
// The camera position tells us where the view is on the map
private CameraPosition mCameraPosition = Constants.GetDefaultCameraPosition();
// Current latitude and longitude of user
private LatLng mCurrentLatLong = new LatLng(0.0, 0.0);
// These are flags that allow us to selectively not move the camera and
// instead wait for idle so the movement isn't jerky
private boolean mCameraMoving = false;
private boolean mPendingUpdate = false;
/*************************************************************************
*
* F R A G M E N T
*
*/
public View onCreateView(#NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View root = inflater.inflate(R.layout.fragment_map, container, false);
// The google map...
MapsInitializer.initialize(getActivity());
mMapView = (MapView) root.findViewById(R.id.googleMap);
mMapView.onCreate(savedInstanceState);
mMapView.getMapAsync(this);
// The required permissions...
final String[] REQUIRED_PERMISSIONS = {
Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.INTERNET,
};
requestPermissions(REQUIRED_PERMISSIONS, 0);
return root;
}
#Override
public void onStart() throws SecurityException {
super.onStart();
// Location manager for getting info current location
mLocationManager = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, this);
}
#Override
public void onResume() {
super.onResume();
mMapView.onResume();
}
#Override
public void onStop() {
super.onStop();
}
#Override
public void onDestroyView() {
super.onDestroyView();
mMapView.onDestroy();
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mMapView.onSaveInstanceState(outState);
}
#Override
public void onLowMemory() {
super.onLowMemory();
mMapView.onLowMemory();
}
/*************************************************************************
*
* G O O G L E M A P S
*
*/
#Override
public void onMapReady(GoogleMap googleMap) {
mGoogleMap = googleMap;
// Assuming if here that we have permissions okay. Dangerous sure
// but I'm lazy...
mGoogleMap.setMyLocationEnabled(true);
// Store the location of the camera for UI purposes so we can go
// back to where we were
mGoogleMap.setOnCameraMoveListener(new GoogleMap.OnCameraMoveListener() {
#Override
public void onCameraMove() {
mCameraPosition = mGoogleMap.getCameraPosition();
}
});
mGoogleMap.setOnCameraMoveStartedListener(new GoogleMap.OnCameraMoveStartedListener() {
#Override
public void onCameraMoveStarted(int i) {
mCameraMoving = true;
}
});
mGoogleMap.setOnCameraIdleListener(new GoogleMap.OnCameraIdleListener() {
#Override
public void onCameraIdle() {
mCameraMoving = false;
if (mPendingUpdate) {
centerCameraOnLocation(false);
}
}
});
// Start with user centered in view
centerCameraOnLocation(true);
}
/*************************************************************************
*
* L O C A T I O N
*
*/
#Override
public void onLocationChanged(Location location) {
// Store the current location so if we start auto-center but aren't
// already, we know where to pan to
LatLng newLatLng = new LatLng(location.getLatitude(), location.getLongitude());
if (!newLatLng.equals(mCurrentLatLong)) {
mCurrentLatLong = new LatLng(location.getLatitude(), location.getLongitude());
centerCameraOnLocation(false);
}
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {}
#Override
public void onProviderDisabled(String provider) {}
#Override
public void onProviderEnabled(String provider) {}
/*************************************************************************
*
* M A P C A M E R A
*
*/
/*
* Updates the camera position based on current state. If the camera is
* already moving, then wait.
*/
private void centerCameraOnLocation(boolean animate) {
if (mGoogleMap == null) {
return;
}
if (mCameraMoving) {
mPendingUpdate = true;
return;
}
// Get the CameraPosition to update to based on whether we are auto
// centering or not.
if (mCameraPosition == null) {
mCameraPosition = Constants.GetDefaultCameraPosition();
}
// If this is the same as it was before, then don't reset it
if (mCameraPosition.equals(mGoogleMap.getCameraPosition())) {
return;
}
// Make the update so we can move the camera
CameraUpdate cameraUpdate = CameraUpdateFactory.newCameraPosition(mCameraPosition);
// Move the camera with or without animation. The time we don't want
// animation is when we're setting the position initially
if (animate) {
mGoogleMap.animateCamera(cameraUpdate);
}
else {
mGoogleMap.moveCamera(cameraUpdate);
}
mPendingUpdate = false;
}
}
FINALLY I found the answer in a comment at https://stackoverflow.com/a/51464293/3038157.
Basically, it seems there was something stale. Without changing any code, I uninstalled the app, cleaned the build, rebuilt, and voila it worked.
You must forward all the life cycle methods from the Activity or Fragment containing this view to the corresponding ones in this class.
View this official guide
or example code
// *** IMPORTANT ***
// MapView requires that the Bundle you pass contain _ONLY_ MapView SDK
// objects or sub-Bundles.
I want to import Google Map SDK in my project. According to Docs I follow all the steps perfectly but when i run the project it only show an icon of google instead of Google Map.
I search a lot but nothing find to solve my problem
Here is my Main Activity named as GoogleMapLocat:
public class GoogleMapLocat extends AppCompatActivity {
//map data
private static final String TAG = "HomeActivity";
private static final int ERROR_DIALOG_REQUEST = 9001;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_google_map_locat);
//map data
if (isServicesOK()) {
init();
}
}
//MAP DATA
public void init() {
Button btnMap = (Button) findViewById(R.id.btnMap);
btnMap.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(GoogleMapLocat.this, MapActivity.class);
startActivity(intent);
}
});
}
public boolean isServicesOK() {
Log.d(TAG, "isServicesOK: checking google services version");
int available = GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(GoogleMapLocat.this);
if (available == ConnectionResult.SUCCESS) {
Log.d(TAG, "Google Play Services is Working");
return true;
} else if (GoogleApiAvailability.getInstance().isUserResolvableError(available)) {
//an error occured but we can resolve it
Log.d(TAG, "isServicesOK: an error occured but we can fix it");
Dialog dialog = GoogleApiAvailability.getInstance().getErrorDialog(GoogleMapLocat.this, available, ERROR_DIALOG_REQUEST);
dialog.show();
} else {
Toast.makeText(this, "you can,t make map request", Toast.LENGTH_LONG).show();
}
return false;
}
}
Here is my Second Activity named as MapActivity:
public class MapActivity extends FragmentActivity implements OnMapReadyCallback{
private static final String TAG = "MapActivity";
private static final String FINE_LOCATION = Manifest.permission.ACCESS_FINE_LOCATION;
private static final String COURSE_LOCATION = Manifest.permission.ACCESS_COARSE_LOCATION;
private static final int LOCATION_PERMISSION_REQUEST_CODE = 1234;
//vars
private Boolean mLocationPermissionsGranted = false;
private GoogleMap mMap;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
getLocationPermission();
}
#Override
public void onMapReady(GoogleMap googleMap) {
Toast.makeText(this, "Map is Ready", Toast.LENGTH_SHORT).show();
Log.d(TAG, "onMapReady: map is ready");
mMap = googleMap;
}
private void initMap(){
Log.d(TAG, "initMap: initializing map");
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(MapActivity.this);
}
private void getLocationPermission(){
Log.d(TAG, "getLocationPermission: getting location permissions");
String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION};
if(ContextCompat.checkSelfPermission(this.getApplicationContext(),
FINE_LOCATION) == PackageManager.PERMISSION_GRANTED){
if(ContextCompat.checkSelfPermission(this.getApplicationContext(),
COURSE_LOCATION) == PackageManager.PERMISSION_GRANTED){
mLocationPermissionsGranted = true;
}else{
ActivityCompat.requestPermissions(this,
permissions,
LOCATION_PERMISSION_REQUEST_CODE);
}
}else{
ActivityCompat.requestPermissions(this,
permissions,
LOCATION_PERMISSION_REQUEST_CODE);
}
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
Log.d(TAG, "onRequestPermissionsResult: called.");
mLocationPermissionsGranted = false;
switch(requestCode){
case LOCATION_PERMISSION_REQUEST_CODE:{
if(grantResults.length > 0){
for(int i = 0; i < grantResults.length; i++){
if(grantResults[i] != PackageManager.PERMISSION_GRANTED){
mLocationPermissionsGranted = false;
Log.d(TAG, "onRequestPermissionsResult: permission failed");
return;
}
}
Log.d(TAG, "onRequestPermissionsResult: permission granted");
mLocationPermissionsGranted = true;
//initialize our map
initMap();
}
}
}
}
}
GoogleMapLocat.xml is here:
<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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".GoogleMapLocat">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Map"
android:id="#+id/btnMap"
tools:ignore="MissingConstraints" />
MapActivity.xml is here:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<fragment 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"
android:id="#+id/map"
tools:context=".MapsActivity"
android:name="com.google.android.gms.maps.SupportMapFragment" />
What,s wrong in this code?It only shows google icon in left corner at the bottom of screen instead of map.
I can't see if you have configured the google map key. You have to define it in the manifest. You can define with this line:
<meta-data android:name="com.google.android.geo.API_KEY" android:value="YOUR_KEY_GOES_HERE" />
You can review this link to get your key: https://developers.google.com/maps/documentation/android-sdk/get-api-key
I suggest you must define 2 APIs for release & debug in APIs & credentials.
For example, use debug & release sign key in both APIs.
I had the same problem a few days ago.
Try to remove "Application restrictions" on Google API Console.
It worked for me.
I was testing on device and it was not connected to internet...
I connected to WiFi and map started showing, if was silently failing.
If someone end up on this question, don't forget to check your connection.
I encountered this problem too and I had ensured that:
The project SDK was setup correctly
Google Console was setup correctly with no key restriction
I confirmed the above by using the same key in other android project and the map could load successfully. Then I created another new android project with the same package name with my original one and surprising this time the map could not load again. I concluded it was the package name that made the map loading failed. I am not sure why but I solved this by refactoring my package name to another one.
I am trying to build an Android app that simply uses the camera to take a picture without launching the default camera app. In other words, I want to make a custom camera app. I can do this using the Camera hardware object class, however this is deprecated and I want to use some of the new features of camerax and not have to worry about the code not working after some time. I have also read the camera API documentation, however it is still unclear how to use the camera. Are there any very simple step by step tutorials or guides that might help me?
Thanks,
You can check my example about how to use AndroidX libraries and TextureView for camera customization.
https://github.com/icerrate/Custom-Camera-App
First at all, define your layout. This is my activity_main.xml file:
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextureView
android:id="#+id/view_finder"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/take_photo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
android:layout_margin="#dimen/horizontal_margin"
app:layout_constraintStart_toStartOf="parent"
android:src="#drawable/ic_camera"/>
</androidx.constraintlayout.widget.ConstraintLayout>
Remember that TextureView will receive the camera preview and the Floating Action Button works as a "Take Photo" button.
Then add your MainActivity.java file:
public class MainActivity extends AppCompatActivity implements LifecycleOwner {
private static final int RC_PERMISSIONS = 100;
private TextureView viewFinder;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
viewFinder = findViewById(R.id.view_finder);
FloatingActionButton takePhotoFab = findViewById(R.id.take_photo);
//Check permissions
if (allPermissionGranted()) {
viewFinder.post(new Runnable() {
#Override
public void run() {
startCamera();
}
});
} else {
ActivityCompat.requestPermissions(this,
new String[] {Manifest.permission.CAMERA}, RC_PERMISSIONS);
}
takePhotoFab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
takePhoto();
}
});
}
private void startCamera() {
Point screenSize = getScreenSize();
int width = screenSize.x;
int height = screenSize.y;
//Get real aspect ratio
DisplayMetrics displayMetrics = new DisplayMetrics();
Display display = getWindowManager().getDefaultDisplay();
display.getRealMetrics(displayMetrics);
Rational rational = new Rational(displayMetrics.widthPixels, displayMetrics.heightPixels);
//Build the camera preview
PreviewConfig build = new PreviewConfig.Builder()
.setTargetAspectRatio(rational)
.setTargetResolution(new Size(width,height))
.build();
Preview preview = new Preview(build);
preview.setOnPreviewOutputUpdateListener(new Preview.OnPreviewOutputUpdateListener() {
#Override
public void onUpdated(Preview.PreviewOutput output) {
ViewGroup group = (ViewGroup) viewFinder.getParent();
group.removeView(viewFinder);
group.addView(viewFinder, 0);
viewFinder.setSurfaceTexture(output.getSurfaceTexture());
}
});
CameraX.bindToLifecycle(this, preview);
}
private void takePhoto() {
Toast.makeText(this, "Shot!",
Toast.LENGTH_SHORT).show();
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == RC_PERMISSIONS) {
if (allPermissionGranted()) {
viewFinder.post(new Runnable() {
#Override
public void run() {
startCamera();
}
});
} else {
Toast.makeText(this, "Permission not granted",
Toast.LENGTH_SHORT).show();
finish();
}
}
}
private boolean allPermissionGranted() {
return ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED;
}
private Point getScreenSize() {
Display display = getWindowManager(). getDefaultDisplay();
Point size = new Point();
display.getSize(size);
return size;
}
}
In this class, you would be able to send the camera preview to the TextureView, with help of PreviewConfig.Builder() and binding it to the Activity lifeCycle using CameraX.bindToLifeCycle()
Also, don't forget to add Camera permission to the manifest and consider runtime permissions.
Screenshot:
Custom Camera preview
Hope this help you!
When i am placing three images in my activity it crashes.Can't able to find out
the issue.
First activity
public class SquareMain extends AppCompatActivity {//MainActivity
private boolean isUserClickedBackButton = false;
#Override
protected void onCreate(Bundle savedInstanceState) {//OnCreate
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_square_main);
mainmusic();
}//OnCreate
public void presshere(View view)//pressherebutton
{
Intent press = new Intent(SquareMain.this, SquareHome.class);
startActivity(press);
}//pressherebutton
public void mainmusic(){//mainmusic
MediaPlayer mainmusic = MediaPlayer.create(SquareMain.this, R.raw.mainmeunsong);//main music
mainmusic.start();//main music
mainmusic.setLooping(true);//main music
}
}//MainActivity
Second activity
public class SquareHome extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_square_home);
}
}
Image button
<ImageButton
android:id="#+id/pressherebutton"
android:layout_width="161dp"
android:layout_height="28dp"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
android:background="#mipmap/squarepresshere"
android:onClick="presshere"
android:scaleType="centerCrop"
android:text="#string/presshere"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.86"
app:srcCompat="#drawable/squarepresshere"
tools:layout_editor_absoluteY="223dp" />
my SecondActivity crashes when more than three image button is placed.
Anyone that might have any idea on how to solve this?
What is the size of those images?? Size of an images is also the factors we have to consider for smooth and comfortable to render images. High resolution images may cause ANR.
You need to terminate your MediaPlayer before leaving the Activity, override onPause method and stop your MediaPlayer. declare your mainmusic as class variable not local.
#Override
protected void onPause() {
super.onPause();
if (mainmusic != null) {
if (mainmusic.isPlaying())
mainmusic.stop();
mainmusic.reset();
mainmusic.release();
}
}
When i run my application i receive no errors, but when i try to run a test using the activity that includes the fragment i receive the inflation error.
I have been trying to resolve this for the past few hours and i am getting no where.
This is my fragment part of my xml.
<fragment
android:layout_marginTop="30dp"
android:layout_gravity="center_horizontal"
android:layout_width="300dip"
android:layout_height="300dip"
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
/>
And this is the test that fails.
public class testResultsActivity extends ActivityUnitTestCase<ResultsPage>
{
ResultsPage resultsPage;
public testResultsActivity()
{
super(ResultsPage.class);
}
#Override
protected void setUp() throws Exception {
super.setUp();
Intent intent = new Intent(getInstrumentation().getTargetContext(),
ResultsPage.class);
startActivity(intent, null, null);
resultsPage = getActivity();
}
#SmallTest
public void testResultsPage()
{
assertNotNull(resultsPage.findViewById(R.id.map));
assertNotNull(resultsPage.findViewById(R.id.ratingBar));
}
}
Can anyone tell me what is actually causing this and how i can go about fixing/ avoiding it?