I have a ViewPager in MainActivity that open a new Activity when you touch each image that is inside an adapter.
Does anyone know how to show an ad before these new activities are loaded?
As you can see, I have an adapter called CustomSwipeAdapterCovers and it is responsible for opening the new activities, and in MainActivity show how the ad is loaded, but I don't know how to implement ads on non-activities.
public class MainActivity extends AppCompatActivity {
private static final int START_LEVEL = 1;
private int mLevel;
private Button mNextLevelButton;
private InterstitialAd mInterstitialAd;
private TextView mLevelTextView;
private ViewPager viewPager;
private CustomSwipeAdapterCapas adapter;
//=================================
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Create the next level button, which tries to show an interstitial when clicked.
mNextLevelButton = ((Button) findViewById(R.id.next_level_button));
mNextLevelButton.setEnabled(false);
mNextLevelButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
showInterstitial();
}
});
// Create the text view to show the level number.
mLevelTextView = (TextView) findViewById(R.id.level);
mLevel = START_LEVEL;
// Create the InterstitialAd and set the adUnitId (defined in values/strings.xml).
mInterstitialAd = newInterstitialAd();
loadInterstitial();
// Toasts the test ad message on the screen. Remove this after defining your own ad unit ID.
Toast.makeText(this, TOAST_TEXT, Toast.LENGTH_LONG).show();
viewPager = findViewById(R.id.viewpager_main_xml);
adapter = new CustomSwipeAdapterCapas(this);
viewPager.setAdapter(adapter);
}
//=====================================
@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_main, 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onStop() {
super.onStop();
}
@Override
protected void onDestroy() {
super.onDestroy();
}
@Override
protected void onRestart() {
super.onRestart();
}
private InterstitialAd newInterstitialAd() {
InterstitialAd interstitialAd = new InterstitialAd(this);
interstitialAd.setAdUnitId(getString(R.string.interstitial_ad_unit_id));
interstitialAd.setAdListener(new AdListener() {
@Override
public void onAdLoaded() {
mNextLevelButton.setEnabled(true);
}
@Override
public void onAdFailedToLoad(int errorCode) {
mNextLevelButton.setEnabled(true);
}
@Override
public void onAdClosed() {
// Proceed to the next level.
goToNextLevel();
}
});
return interstitialAd;
}
private void showInterstitial() {
// Show the ad if it's ready. Otherwise toast and reload the ad.
if (mInterstitialAd != null && mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
} else {
Toast.makeText(this, "Ad did not load", Toast.LENGTH_SHORT).show();
goToNextLevel();
}
}
private void loadInterstitial() {
// Disable the next level button and load the ad.
mNextLevelButton.setEnabled(false);
AdRequest adRequest = new AdRequest.Builder()
.setRequestAgent("android_studio:ad_template").build();
mInterstitialAd.loadAd(adRequest);
}
private void goToNextLevel() {
// Show the next level and reload the ad to prepare for the level after.
mLevelTextView.setText("Level " + (++mLevel));
mInterstitialAd = newInterstitialAd();
loadInterstitial();
}
}
public class CustomSwipeAdapterCovers extends PagerAdapter {
private int[] BookCovers = { R.drawable.cover_1,
R.drawable.cover_2,
R.drawable.cover_3,
R.drawable.capa_4,
R.drawable.capa_5,
R.drawable.capa_6,
R.drawable.capa_7,
R.drawable.capa_8,
R.drawable.capa_9,
R.drawable.capa_10,
R.drawable.capa_11,
R.drawable.capa_12,};
private Context context;
private LayoutInflater layoutInflater;
public CustomSwipeAdapterCapas(Context context){
this.context = context;
}
@Override
public int getCount() {
return capasLivros.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return (view == (LinearLayout) object);
}
@Override
public Object instantiateItem(final ViewGroup container, final int position) {
layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item_view = layoutInflater.inflate(R.layout.capas_layout, container, false);
ImageButton imageButton = item_view.findViewById(R.id.imagebutton_main_xml);
imageButton.setImageResource(BookCovers[position]);
imageButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if( position == 0){
Intent intent = new Intent(v.getContext(), LivroUmActivity.class);
v.getContext().startActivity(intent);
} else if(position == 1){
Intent intent = new Intent(v.getContext(), LivroDoisActivity.class);
v.getContext().startActivity(intent);
} else if(position == 2){
Intent intent = new Intent(v.getContext(), LivroTresActivity.class);
v.getContext().startActivity(intent);
} else if(position == 3){
Intent intent = new Intent(v.getContext(), LivroQuatroActivity.class);
v.getContext().startActivity(intent);
} else if(position == 4){
Intent intent = new Intent(v.getContext(), LivroCincoActivity.class);
v.getContext().startActivity(intent);
} else if(position == 5){
Intent intent = new Intent(v.getContext(), LivroSeisActivity.class);
v.getContext().startActivity(intent);
} else if(position == 6){
Intent intent = new Intent(v.getContext(), LivroSeteActivity.class);
v.getContext().startActivity(intent);
} else if(position == 7){
Intent intent = new Intent(v.getContext(), LivroOitoActivity.class);
v.getContext().startActivity(intent);
} else if(position == 8){
Intent intent = new Intent(v.getContext(), LivroNoveActivity.class);
v.getContext().startActivity(intent);
} else if(position == 9){
Intent intent = new Intent(v.getContext(), LivroDezActivity.class);
v.getContext().startActivity(intent);
} else if(position == 10){
Intent intent = new Intent(v.getContext(), LivroOnzeActivity.class);
v.getContext().startActivity(intent);
} else if(position == 11){
Intent intent = new Intent(v.getContext(), LivroDozeActivity.class);
v.getContext().startActivity(intent);
}
}
});
container.addView(item_view);
return item_view;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((LinearLayout) object);
//super.destroyItem(container, position, object);
}
I have also faced this very same issue. In your case instead of opening interstitial ads from adapter activity, open it from next activity of adapter activity. Below is my Solution: Consider Activity_B as your Adapter activity.
Suppose there are 3 activities and opening sequence is as follows:
Activity_A --> Activity_B --> Activity_C.Now I want to show interstitial Ad between
Activity_BandActivity_C.I have first loaded the Interstitial Ad in Activity_A and then call(or show) in
Activity_C.
You can do above like this:
In Activity_A i.e. MainActivity add code like this:
public void showme(){
mInterstitialAd = new InterstitialAd(this);
mInterstitialAd.setAdUnitId(getString(R.string.interstitial_full_screen));
AdRequest adRequest = new AdRequest.Builder()
.build();
mInterstitialAd.loadAd(adRequest);
mInterstitialAd.setAdListener(new AdListener()
{
@Override
public void onAdClosed()
{
//reload interstitial
AdRequest adRequest = new AdRequest.Builder()
// .addTestDevice("YOUR_DEVICE_ID")
.build();
mInterstitialAd.loadAd(adRequest);
}
});
}
public static void showInterstitial() {
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
}
}
Call this showme() in Activity_A inside OnCreate.
In Activity_C paste below code inside OnCreate:
Activity_A.showInterstitial();
Also, this method doesn't violate any Google Admob policy of interstitial ads as well as banner ads.
you should do like following code.... Declare this code in adapter class at the top... private InterstitialAd mInterstitialAd;
After this you put the rest of the code in your onBindViewHolder()
@Override
public void onBindViewHolder(@NonNull MyHolder holder, final int position) {
Picasso.get()
.load(picsArray[position])
.into(holder.imageView);
mInterstitialAd = new InterstitialAd(context);
mInterstitialAd.setAdUnitId("ca-app-pub-3940256099942544/1033173712");
mInterstitialAd.loadAd(new AdRequest.Builder().build());
mInterstitialAd.setAdListener(new AdListener() {
@Override
public void onAdLoaded() {
// Code to be executed when an ad finishes loading.
}
@Override
public void onAdFailedToLoad(int errorCode) {
// Code to be executed when an ad request fails.
}
@Override
public void onAdOpened() {
// Code to be executed when the ad is displayed.
}
@Override
public void onAdLeftApplication() {
// Code to be executed when the user has left the app.
}
@Override
public void onAdClosed() {
Intent intent = new Intent(context, Full_Image_Activity.class);
intent.putExtra("IMG",picsArray[position]);
context.startActivity(intent);
///// onAdClosed() method you can put your intent or what ever you want, this is for when you close the add then the intent must know what to do... } });
}
After this you can put the code in your item.onClicklistner method like below..
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
} else {
Intent intent = new Intent(context, Full_Image_Activity.class);
intent.putExtra("IMG",picsArray[getAdapterPosition()]);
context.startActivity(intent);
}
}
});
In the else{} you can put your code like intent or whatever you want to do... Hope it will work for many peoples...
来源：https://stackoverflow.com/questions/48012359/how-to-put-an-interstital-ad-inside-an-adapter-class