Develop Reference

Getting a light brown screen while trying to run Google Maps in Android

I am having an issue with a Google Map object in my app.
I am only modifying the latitude and longitude values on the code proposed by google, and the map which should be showing is just displaying a light brown screen with the Google logo in the bottom left corner.See image
Can someone help me with this?
I am not even getting any error code in the Logcat and the app is running fine.
package com.app.chalanmx.Activities;
import androidx.fragment.app.FragmentActivity;
import android.os.Bundle;
import com.app.chalanmx.R;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class MapServicio extends FragmentActivity implements OnMapReadyCallback {
private GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map_servicio);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.mapServicio);
mapFragment.getMapAsync(this);
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
LatLng torreon = new LatLng(25.53986916895781, -103.40568068906825);
mMap.addMarker(new MarkerOptions().position(torreon).title("Torreon, Coah.").draggable(true));
mMap.moveCamera(CameraUpdateFactory.newLatLng(torreon));
}

I already fixed this issue by adding my payment information to my Google account and activating the SDK in the google cloud console. If you have this same issue, please try that: add your billing information to the google account that you are using for this project and make sure you activated the SDK for maps in the google cloud platform. Regards.

Have you added google maps API key in manifest?
If you haven't added API key add it in manifest inside <application> tag
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="KEY" />
Otherwise If you have created a MapsActivity the android will automatically add this <meta-data> in manifest for you but you have to copy your API key inside google_maps_api.xml file under values folder
<string name="google_maps_key" templateMergeStrategy="preserve" translatable="false">YOUR KEY</string>

Unfortunately my app stopped working? [duplicate]

This question already has answers here:
Unfortunately MyApp has stopped. How can I solve this?
(23 answers)
Closed 8 years ago.
I tried to display "hello world !" by designing an app using a custom font stored in src/Main/CustomF/times.ttf in my laptop.....while execution it disappears very soon telling that "unfortunately your app stopped"....my coding is as below.....please help me..
package com.example.nambimanavalan.customfonts;
import android.app.Activity;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
public class MainActivity extends Activity {
TextView t;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
t=(TextView)findViewById(R.id.mine);
Typeface custom=Typeface.createFromAsset(getAssets(),"CustomF/times.ttf");
t.setTypeface(custom);
}
}

you need to put your font in assets/Font folder and than you can use
Typeface custom=Typeface.createFromAsset(getAssets(),"Font/times.ttf");

put your custom font in : assets/CustomF/times.ttf and maybe then it will work
assets folder is directly under your project folder, and whenever you create a fresh project it is empty.

How to use a button to within a app to display the phone's contact list

Hello everyone I am completely new to programing no experience at all so please treat me as a 2 year old when you respond. I have alot of time on my hands as I sit in an office with nothing to do so I figure I should do something productive, and since I have a android tablet I figure I'll try to learn how to make apps for it. This is my first attempt and I'm getting an error in the .java portion of the code, I've been reading and reading on various sites and can't seem to get a clear understanding of what I need to do to correct it. PLEASE HELP
Now down to business, in the app I am trying to learn how to display an image its that simple, I'm taking baby steps. So I started a project, read a few tutorials on how to code ImageView and then I got stuck. I have the error that says "The public type TestImages must be defined in its own file" so I ask how to define/create this file? where to put it?
Here is the .java portion of the code where the error lies.
package com.example.myproject;
import com.example.myproject.util.SystemUiHider;
import android.annotation.TargetApi;
import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;
public class TestImages extends Activity {
/**Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen);
ImageView image = (ImageView) findViewById(R.id.test_image);
}
}
Please help, and if you know of any other resource out there that can help a newbie/dummy like myself who don't know anything about coding and need every detail explained please point me in that direction. I've tried the Android Developers site but the information presented on there are not explained in detail it looks as if they expects everyone who tries to do this have a background in coding and I don't. Oh and please don't discourge encourage, because I'm eager to learn.

use on click listener on the button and then check this
https://github.com/android/platform_packages_apps_contacts

Creating Background Image for Android App - Java

I'm just getting started with android development and I need help with background images. I want to be able to have a background image and then overlay other items (buttons, text, etc.) on top of that background with a layout. I used a LinearLayout just for the sake of being simple and because I don't know what's best for me at the moment.
Anyways, I can't get an image to display using the following code:
import android.app.Activity;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.widget.*;
public class NewGameActivity extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout ll = new LinearLayout(this);
ll.setBackgroundDrawable(Drawable.createFromPath("/assets/images/androidBackground.png"));
this.setContentView(ll);
}
}

ll.setBackgroundResource(R.drawable.image_name);
http://developer.android.com/reference/android/view/View.html#setBackgroundResource%28int%29
This is the preferred way of accessing drawable resources. The image_name is a png image in your drawable or drawable-mdpi folder.

yes if you are using XML then find the id of that linearlayout like
ll=(LinearLayout)findViewById(R.id.linear1)
Then set its background as
ll.setBackgroundResource(R.drawable.image_name);
else here as your code given here you can directly go for
ll.setBackgroundResource(R.drawable.image_name);

how to view youtube video

I am finding great difficulties to view YouTube videos in my app.
here is my code:
package com.example.webvideo;
import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;
import android.widget.MediaController;
import android.widget.VideoView;
public class WebVideo extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
VideoView vv = (VideoView) findViewById(R.id.videoView);
MediaController mc = new MediaController(this);
mc.setAnchorView(vv);
vv.setMediaController(mc);
vv.setVideoURI(Uri.parse("http://youtu.be/2OIOOb-0t44"));
vv.start();
}
}
The emulator is showing an error that the video cannot be played.
What am I doing wrong? Am I giving the URL in a wrong format?

I would expect that the URI you need to give is to the actual media file to be played. I wouldn't count on redirects working either... and anyway that redirect you give seems to point to a YouTube web page, which I sure wouldn't expect the video player to be able to render.

http://youtu.be/2OIOOb-0t44 is certainly an invalid URL. Maybe you meant http://youtube.com/watch?v=2OIOOb-0t44?

The URL you are using is for the webpage where you can view it, not for the video itself. The embedding URL appears to be http://www.youtube.com/embed/2OIOOb-0t44, but I think it's HTML5, not flash... you may have to go old school and track down an AVI or MPEG file.