Hello,
I create that thread to present you a tutorial learning you how to create a Splash Screen on Android by following the right way. Note that you can also discover this tutorial in video on Youtube :
Create a Splash Screen on Android : the Right Way !
At a certain moment in the past, Google advised against using a Splash Screen on Android Applications. It was useless. Then, when they have published the Material Design Specifications, some of us have seen that the Splash Screen was now a pattern known as Launch Screen. Ideal to display your brand logo during cold start of applications. So, what’s the difference between the bad Splash Screen and the good Splash Screen ?
The difference is just the way you implement if. Previously, developers implemented the Splash Screen by displaying their brand logo on the screen during a certain time. The right way to implement a Launch Screen is now just to display your brand logo the time the application starts and no more.
To create a correct Splash Screen, you need to create a background that will display your brand logo to the screen. For this, you must create an XML file in the res/drawable folder :
Code:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/colorPrimary" />
<item>
<bitmap android:src="@drawable/logo"
android:gravity="center" />
</item>
</layer-list>
Next step is to create a dedicated theme for your Splash Activity. For this, you must inherit from the Theme.AppCompat.NoActionBar theme :
Code:
<resources>
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
<style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
<item name="android:windowBackground">@drawable/background</item>
</style>
</resources>
Note that your Splash Theme has just to define the android:windowBackground item and set up the background created previously.
Now, you can create your SplashActivity :
Code:
package com.ssaurel.splashscreen;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
/**
* Created by ssaurel on 02/12/2016.
*/
public class SplashActivity extends AppCompatActivity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
finish();
}
}
No need to define a content view for the SplashActivity because you are going to apply the SplashTheme on it. So, you have just to launch the MainActivity of your Android Application and then finish the SplashActivity by calling the finish() method.
Don’t forget to define your SplashActivity in the Android Manifest and apply the SplashTheme on it :
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.ssaurel.splashscreen">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".SplashActivity" android:theme="@style/SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity" />
</application>
</manifest>
Then, you can write the code of your Android Application in your MainActivity as you want. You can try the application by seeing the demo in the previous video. Now, you could make Splash Screen on Android by following the right way !
Don't hesitate to give it a try and give me your feedbacks !
Thanks.
Sylvain
Related
Hi all,
I am trying to get map in android Emulator, But I have error message when i run the application.How to rectify this error?
My Code:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.googlemapsandroid"
android:versionCode="1"
android:versionName="1.0">
<uses-library android:name="com.google.android.maps.map" />
<application android:icon="@drawable/worldmap" android:label="@string/app_name">
<activity android:name=".GoogelMapsAndroid"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
</manifest>
main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mainlayout"
androidrientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="0ubDx0zU6vaeSSZoV0oyPB4zi7y8T2hKSZfAyZw"
/>
</RelativeLayout>
GoogleMapsAndroid.java
package com.android.googlemapsandroid;
import android.os.Bundle;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
public class GoogleMapsAndroid extends MapActivity
{
MapView mapview;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mapview=(MapView)findViewById(R.id.mapview);
mapview.setSatellite(true);
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
}
I have error message:
java lang Runtime Exception Unable to instantiate ComponentInfo{com.android.googlemapsandroid/com.android.googlemapsandroid.MapsActivity}java.lang.RuntimeException: stub
Do you use Google APIs target in an emulator?
No. How to use Google api.
dineshsubramanian said:
No. How to use Google api.
Click to expand...
Click to collapse
This is what I mean:
http://img40.imageshack.us/f/screenshotcreatenewandr.png/
Thanks for your reply.
I will try in Google Api.
Now i ran in google api. but i have error message
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.googlemapdemo/com.googledemo.GoogleMapDemo}: android.view.InflateException: Binary XML file line #6: Error inflating class com.google.android.maps.MapView.
Unrelated to my other Animation based thread but I cant seem to figure out how to run my animation that i created on an ImageView..
I created this scaling animation in XML:
Code:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/accelerate_interpolator">
<scale android:fromXScale="0.0" android:toXScale="1.0" android:fromYScale="0.0" android:toYScale="1.0" android:duration="150" />
<scale android:fromXScale="1.0" android:toXScale="0.0" android:fromYScale="1.0" android:toYScale="0.0" android:duration="150" android:delay="5000" />
</set>
and the image view in my main.xml file:
Code:
<ImageView android:id="@+id/Logo" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_gravity="center_vertical|center_horizontal|center" android:src="@drawable/logo"></ImageView>
I haven't found the best documentation for this, so im probably trying to run this completely wrong, but here's what i did to attempt to run it as the app starts up:
Code:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Animation anim = AnimationUtils.loadAnimation(this, R.anim.logozoom);
View logo = findViewById(R.id.Logo);
setContentView(R.layout.launch);
logo.startAnimation(anim);
}
Where am I failing?
Thanks for the help
EDIT: I fixed it! if anyone else runs into problems with this just PM me and il update this post, too lazy right now
I am new to SW development with Android.
Trying to have a MapView object in my display. Code is straightforward below. But for some reason when i launch the application i do not see any map but rather the grey grid.
I have looked at many posts on the internet and i understand that it is either an INTERNET permission (which is included in my coe) or a wrong apiKey. I have gone through the apiKey several time.
Am not sure what can be wrong. Any help would be great. Thanks, Lebnen.
-----------------------------------------------
Manifest.xml
-----------------------------------------------
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.testmap"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true">
<uses-library android:name="com.google.android.maps" />
<uses-permission android:name="android.permission.INTERNET" />
<activity android:name=".TestMapActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
-----------------------------------------------
main.xml
-----------------------------------------------
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mainlayout"
androidrientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
>
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:enabled="true"
android:apiKey="0SA_n7tIj-klgGxARuFJgEos8FBGtEshpgmfogA"
/>
</LinearLayout>
-----------------------------------------------
testMapActivity.java
-----------------------------------------------
package com.test.testmap;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.widget.LinearLayout;
import com.google.android.maps.MapView;
import com.google.android.maps.MapController;
import com.google.android.maps.MapActivity;
import com.google.android.maps.GeoPoint;
public class TestMapActivity extends MapActivity {
private MapView mapView;
LinearLayout linearLayout;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
mapView = (MapView) this.findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
mapView.setSatellite(true);
}
@Override
public boolean isRouteDisplayed() { return false; }
}
Dont see your manifest. Is it a dev map key ? Is the application debuggable in the manifest ?
Sent from my Nexus One using XDA App
1. What do you mean by dev map key? Am using the debug.keystory MD5 hash that I feed into the google page http://code.google.com/android/add-ons/google-apis/maps-api-signup.html to get the apiKey.
2. The application is debbugable in the manifest.
Ok i see your files on computer now (not on android application on my nexus one)
replace com.google.android.maps.MapView by com.test.testmap.testMapActivity
If I replace it in main.xml the application crashes; in the manifest it does not compile
Help!
the:
<uses-permission android:name="android.permission.INTERNET" />
you have to put on <manifest>, not on <application>
like
<manifest ...>
<application ...>
<uses-library android:name="com.google.android.maps" />
.
.
.
</application>
<uses-permission android:name="android.permission.INTERNET" />
</manifest>
Other thing that I'm not totally right if it's correct:
I don't know if this is correct, but for me, only worked when I create a new Android Project with Target on Google API's. Didn't work with Android 2.2 + map.jar.
Did you create with Android X.X or Google API ?
I have tried to put the INTERNET permission inside and outside the application. It does not make a difference.
I am building a Google API application.
It worked.
Weird. I had to add
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
in <manifest> outside of <application> and did it through the "Permissions" tab in Eclipse.
Thanks.
Interesting, because I thought that the "ACCESS_FINE_LOCAT ION" is used only when you try to use something with location, such as get location, distance between locations, etc..., I thought that it's not necessary when you only want to show the map
Good to know, thank you
Hi,
I am new to android development. I am facing problem in switching between activities. I am attaching the code files ... Please help me solve this problem
Being a new user the Forum doesn't allow me to write atTheRateSign in my message ... I am replacing it with % sign. Please don't confuse it.
Main Activity:
Code:
package swz.pkg;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class SWMainActivity extends Activity {
/** Called when the activity is first created. */
%Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btnMSrch = (Button) findViewById(R.id.btnClosetSearch);
try{
btnMSrch.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent myIntent = new Intent(v.getContext(),ClosetSearchAct.class);
startActivityForResult(myIntent,0);
}
});
}
catch (Exception ex)
{
System.out.println("---------------------******------------------------");
ex.printStackTrace();
System.out.println();
System.out.println("---------------------******------------------------");
}
}
}
main.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout
android:id="%+id/widget0"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="ht ... android"
>
<Button
android:id="%+id/btnMeasurementSearch"
android:layout_width="fill_parent"
android:layout_height="150px"
android:background="#ffffffff"
android:text="Measurement Search"
android:textSize="26sp"
android:typeface="serif"
android:textStyle="bold"
android:textColor="#ff8c2528"
android:layout_x="0px"
android:layout_y="47px"
>
</Button>
<Button
android:id="%+id/btnClosetSearch"
android:layout_width="fill_parent"
android:layout_height="150px"
android:text="Closet Search"
android:textSize="26sp"
android:typeface="serif"
android:textStyle="bold"
android:textColor="#ff462556"
android:layout_x="0px"
android:layout_y="213px"
>
</Button>
</AbsoluteLayout>
closetSearch activity(The next activity I want to move to):
Code:
package swz.pkg;
import android.app.Activity;
import android.os.Bundle;
public class ClosetSearchAct extends Activity {
public void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.closetsearchact);
}
}
closetsearchact.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout
android:id="%+id/widget1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="ht .... android"
>
<Spinner
android:id="%+id/spinner1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_x="0px"
android:layout_y="33px"
>
</Spinner>
<Spinner
android:id="%+id/spinner2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_x="0px"
android:layout_y="101px"
>
</Spinner>
<Spinner
android:id="%+id/spinner3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_x="0px"
android:layout_y="173px"
>
</Spinner>
<ImageButton
android:id="%+id/btnReg"
android:layout_width="128px"
android:layout_height="wrap_content"
android:src="%drawable/reg"
android:layout_x="151px"
android:layout_y="279px"
>
</ImageButton>
<ImageButton
android:id="%+id/btnSearch"
android:layout_width="114px"
android:layout_height="49px"
android:src="%drawable/search"
android:layout_x="37px"
android:layout_y="279px"
>
</ImageButton>
</AbsoluteLayout>
AndroidManifest.xml:
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="ht ... android"
package="swz.pkg"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="%drawable/icon" android:label="%string/app_name">
<activity android:name=".SWMainActivity"
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=".ClosetSearchAct" android:label="%string/app_name"> </activity>
</application>
</manifest>
Hi, I am new in xda-developers forum. I have written my first simple application which uses GPS. Now I want to use Google Maps. Is problem because it want apiKey. My apiKey is in Google Code Api's Console. There is Android apps:
8A5:....:72:88:AE;com.borneq.heregpslocation and ApiKey : AIzaSyCh0XWRIXaTizxYcnWO8K7eFLZEysfGJvM (it is public or private?)
I modified three file to do with maps:
* AndroidManifest.xml:
Code:
<permission
android:name="com.borneq.heregpslocation.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="com.borneq.heregpslocation.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
Code:
<uses-library android:name="com.google.android.maps" />
Code:
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyCh0XWRIXaTizxYcnWO8K7eFLZEysfGJvM" />
Second file is activity_main.xml :
Code:
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="AIzaSyCh0XWRIXaTizxYcnWO8K7eFLZEysfGJvM"
android:clickable="true" />
Third is .MainActivity.java :
import com.google.android.maps.MapActivity;
public class MainActivity extends MapActivity implements OnClickListener {
Click to expand...
Click to collapse
Previously used controls I commnted
Project compiles but application breaks at start. I attach source: zipped program and logCat
Thanks!
The app crashs in line 77 of MainActivity. It's a NullPointerException.
Code:
boolean isGps = locationManager.isProviderEnabled("gps");
The reason for the crash is that in onCreate you commented this line out:
Code:
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
Due to this the variable locationManager is null and it crashes later because it cannot handle a null value. Just uncomment the line from onCreate which I pasted above. That's it.
How did I know that? It's in the logcat:
Code:
Caused by: java.lang.[B]NullPointerException[/B]
at com.borneq.heregpslocation.MainActivity.setButtonState([B]MainActivity.java:77[/B])
This guide might help you understand logcats (focus on that part of the guide): [GUIDE] Debugging apps You'll definitely need that knowledge if you want to do serious Android development. The earlier you learn it the better. Good luck.
nikwen said:
The app crashs in line 77 of MainActivity. It's a NullPointerException.
Code:
boolean isGps = locationManager.isProviderEnabled("gps");
The reason for the crash is that in onCreate you commented this line out:
Code:
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
Click to expand...
Click to collapse
Thanks, I remove by comment old controls and not noticed that comment also locationManager (!)
I correct; removed reference to commented controls and I don't have error but I can't see maps
Is "class MainActivity extends MapActivity" but np map, only lattice