5.Intents

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Transcript 5.Intents 

Mobile Computing
Monetizing An App
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Objectives
▀
Learn about:
 The
 Ad
various ad companies
measurements
 AdViews
 Define
an ad using XML and java
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Ad Companies
▀
▀
▀
AdMob, Inmobi, Mopub,
Jumptap, Tapit, Smaato,
Mobfox, AdSense
They provide code that you
add to your app
Their code figures out size of
ad to display based on the
device
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Measurements
▀
CTR – click through rate
%
of people who click on an ad
► If
the ad is displayed 100 times and is
clicked twice, the ctr is 2% or .02
▀
CPC – cost per click
 How
much advertiser will pay you
for each click
► 47
cents for each click through
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Measurements
▀
eCPM – effective cost per
thousand ad views (impressions)
 How
much you should make for a
thousand ads being displayed
 Need
to multiply CPC (.47) by 1000
by CTR (.02)
► .47
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* 1000 * .02 = $9.40
Ad companies track all these
measurements (and report them
to you)
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Admob provides reports
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Notice reported stats
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Detailed stats
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My sad, unpopular app
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Measurements
▀
▀
Most of the ad companies won’t let
you post these numbers
Also, if they see unusual numbers:
A
CTR of 57%
 Clicks
are done by a small % of
users or locations
► They
may shut down your app
• People have their friends, relatives, and
neighbors download app and click ads
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Going to use AdMob (owned by Google)
http://www.google.com/ads/admob/
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Sign up using your google account
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If you are at the same computer that you created the account on they
will know who you are!
If so, fill in the password
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Specify info for an Admob account then click Continue
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Scroll down, accept Terms, click Submit
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Click Add Your First App
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Specify tax and payment info, the click Submit
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Click Sites and Apps then Android App
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Fill in app info and click Continue
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Go to https://apps.admob.com/#home click Monetize new app
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Specify Project name and Android
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Specify Ad type and give it a name
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You can change some ad formatting
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You need the add unit ID and you can have them info email to you
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Specify email address to send to
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The Ad unit ID that you will need to get ads
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Go back to Home, scroll down, and the project(s) should be displayed
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Creating From Scratch
▀
Must create a new project
(AdProj) with a min target of 3.2,
package (my.ad.com), activity
(AdProjActivity), and layout
(main)
 Example
▀
will be 4.X
Need to:
 Add
a reference to the Google play
services library
 Modify
the Manifest
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Must import google-play-services_lib into the workspace
(Should already be there from MapProj but if not…)
File, Import, expand the Android folder and select
Existing Android Code Into WorkSpace, then click Next
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Click the Browse button then navigate to the
sdk/extras/google/google_play_services/libproject/google
-play-services_lib, click OK then Finish
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Right click AdProj and select Properties
Click Android
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Scroll down, click Add, then select the library and click
OK
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Setup
▀
Manifest have:
The
following meta tag in the
application element
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version"/>
The
following activity defined
<activity
android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientat
ion|screenLayout|uiMode|screenSize|smallestScreenSize"/>
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Setup
The
following permissions
outside the application tags
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission
android:name="android.permission.ACCESS_NETWORK_STATE"/>
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Defining an Ad
▀
Use an AdView component
▀
Two ways to define an AdView
▀
 With
xml in the layout
 With
java in the activity
Will define an AdView
component in xml
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main.xml
Don’t forget to substitute your Ad Unit ID in the adUnitId parameter
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.gms.ads.AdView android:id="@+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
ads:adUnitId="ca-app-pub-6333216089167186/1679833953"
ads:adSize="BANNER"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
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</LinearLayout>
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AdProjActivity.java
▀
Need to import
import com.google.android.gms.ads.*;
▀
Need an AdView variable and
object in onCreate then
 After
setContentView, create an
AdRequest and add a test device
 Load
ad into adView
// Look up the AdView as a resource and load a request.
AdView adView = (AdView)this.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
.addTestDevice("abc")
.build();
adView.loadAd(adRequest);
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Industries
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AdProjActivity.java
▀
You will get a test ad
 Google
doesn't want you to
download real ads while testing
▀
To get a real add
// Look up the AdView as a resource and load a request.
AdView adView = (AdView)this.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
//.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
//.addTestDevice("abc")
.build();
adView.loadAd(adRequest);
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AdProjActivity.java
▀
▀
Have to run to get a real
TestDevice number
Find in logcat
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AdProjActivity.java
▀
Substitute for abc
// Look up the AdView as a resource and load a request.
AdView adView = (AdView)this.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().
.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
.addTestDevice("B3EEABB8EE11C2BE770B684D95219ECB")
.build();
adView.loadAd(adRequest);
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ads:adSize="SMART_BANNER"
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ads:adSize="MEDIUM_RECTANGLE"
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Other Types of Ad

Interstitial Ads
 Full
screen ads with a close button
 More
expensive, therefore there are
often display limits
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Go back to AdMob and add an Interstatial add to the app
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Specify timeout and ad name
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Interstitial

Need class level variables
private InterstitialAd interstitial;
private static final String AD_UNIT_ID = "ca-app-pub6333216089167186/1679833953";

In onCreate, create an InterstitialAd
object, set the Ad Unit ID, create
the AdRequest and load the ad
interstitial = new InterstitialAd(this);
interstitial.setAdUnitId(AD_UNIT_ID);
// Create ad request.
AdRequest adRequest = new AdRequest.Builder().build();
// Begin loading the interstitial
interstitial.loadAd(adRequest);
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Interstitial Ads



Can take a while to load
If you try to display before loaded
will get an error
So we will put a button on the
screen and show the ad after the
button is touched
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginLeft="100px">
<Button
android:id="@+id/Btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="doClick"
android:text="Show Ad" />
</LinearLayout>
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</LinearLayout>
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main.xml
doClick in AdProjActivity
import android.view.View;
:
:
:
public void doClick(View arg0) {
interstitial.show();
}

Time to test
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Check in logcat that ad has loaded
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Click Show Ad
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AdListeners


In java, Activity can implement
the AdListener interface
Then tie the ad listener to the
adView
adView.setAdListener(this);
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AdListeners

Activity can implement onAdxxx
methods that are called when ad is:
 Successfully
and unsuccessfully
received
 onAdLoaded,
 When
onAdFailedToLoad
ad is overlaid on the screen
 onAdOpened
 Ad
dismissed and returning to app
 onAdClosed
 When
ad clicked
 onAdLeftApplication
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AdListeners

So instead of having a button to
display the ad
 Create
onAdLoaded method and have it
display the ad

And if ad doesn't load
 Create
onFailedToLoad method to retry
to load the ad
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