I'm beginner in Android Studio and I want the images to be clickable so I can jump to another activity where you can find the information about the images you clicked. How can I make this? Any solution?
I'm thinking of using the onClickAttribute but I have no idea how to do this.
here's the activity_main.xml
<androidx.viewpager2.widget.ViewPager2
android:id="@+id/viewPagerImageSlider"
android:layout_width="415dp"
android:layout_height="413dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="150dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="168dp"
android:paddingStart="80dp"
android:paddingEnd="80dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
here's the MainActivity.java
public class MainActivity extends AppCompatActivity {
private ViewPager2 viewPager2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager2 = findViewById(R.id.viewPagerImageSlider);
List<SliderItem> sliderItems = new ArrayList<>();
sliderItems.add(new SliderItem(R.drawable.image1));
sliderItems.add(new SliderItem(R.drawable.image2));
sliderItems.add(new SliderItem(R.drawable.image3));
sliderItems.add(new SliderItem(R.drawable.image4));
sliderItems.add(new SliderItem(R.drawable.image5));
viewPager2.setAdapter(new SliderAdapter(sliderItems, viewPager2));
viewPager2.setClipToPadding(false);
viewPager2.setClipChildren(false);
viewPager2.setOffscreenPageLimit(3);
viewPager2.getChildAt(0).setOverScrollMode(RecyclerView.OVER_SCROLL_NEVER);
CompositePageTransformer compositePageTransformer = new CompositePageTransformer();
compositePageTransformer.addTransformer(new MarginPageTransformer(40));
compositePageTransformer.addTransformer(new ViewPager2.PageTransformer() {
@Override
public void transformPage(@NonNull View page, float position) {
float r = 1 - Math.abs(position);
page.setScaleY(0.85f + r * 0.15f);
}
});
viewPager2.setPageTransformer(compositePageTransformer);
}
}
here's the SliderItem.java
public class SliderItem {
private int image;
SliderItem(int image) {
this.image = image;
}
public int getImage() {
return image;
}
}
here's the SliderAdapter.java
public class SliderAdapter extends RecyclerView.Adapter<SliderAdapter.SliderViewHolder> {
private List<SliderItem> sliderItems;
private ViewPager2 viewPager2;
SliderAdapter(List<SliderItem> sliderItems, ViewPager2 viewPager2) {
this.sliderItems = sliderItems;
this.viewPager2 = viewPager2;
}
@NonNull
@Override
public SliderViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
return new SliderViewHolder(
LayoutInflater.from(parent.getContext()).inflate(
R.layout.slide_item_container,
parent,
false
)
);
}
@Override
public void onBindViewHolder(@NonNull SliderViewHolder holder, int position) {
holder.setImage(sliderItems.get(position));
if(position == sliderItems.size() - 2) {
viewPager2.post(runnable);
}
}
@Override
public int getItemCount() {
return sliderItems.size();
}
class SliderViewHolder extends RecyclerView.ViewHolder {
private RoundedImageView imageView;
SliderViewHolder(@NonNull View itemView) {
super(itemView);
imageView = itemView.findViewById(R.id.imageSlide);
}
void setImage(SliderItem sliderItem) {
imageView.setImageResource(sliderItem.getImage());
}
}
private Runnable runnable = new Runnable() {
@Override
public void run() {
sliderItems.addAll(sliderItems);
notifyDataSetChanged();
}
};
}
here's the slide_item_container.xml
<?xml version="1.0" encoding="utf-8"?>
<com.makeramen.roundedimageview.RoundedImageView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/imageSlide"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
app:riv_corner_radius="12dp">
</com.makeramen.roundedimageview.RoundedImageView>
I will try to explain how to pass data by passing image position from MainActivity to detailedActivity.
I use the following way: First, make an interface with a method name onPictureClicked()
then implement that interface in your MainActivity to override onPictureClicked()
. Call this method in your adapter. like: interface.onPictureClicked(int picturePositon)
Interface.java
public interface ClickedListener {
void onPictureClicked(int position);
}
SliderAdapter.java
public class SliderAdapter extends RecyclerView.Adapter<SliderAdapter.SliderViewHolder> {
private List<SliderItem> sliderItems;
private ViewPager2 viewPager2;
private ClickedListener clickedListener;
SliderAdapter(List<SliderItem> sliderItems, ViewPager2 viewPager2, ClickedListener clickedListener) {
this.sliderItems = sliderItems;
this.viewPager2 = viewPager2;
this.clickedListener = clickedListener;
}
@NonNull
@Override
public SliderViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
return new SliderViewHolder(
LayoutInflater.from(parent.getContext()).inflate(
R.layout.slide_item_container,
parent,
false
)
);
}
@Override
public void onBindViewHolder(@NonNull SliderViewHolder holder, int position) {
holder.setImage(sliderItems.get(position));
if(position == sliderItems.size() - 2) {
viewPager2.post(runnable);
}
}
@Override
public int getItemCount() {
return sliderItems.size();
}
class SliderViewHolder extends RecyclerView.ViewHolder {
private RoundedImageView imageView;
SliderViewHolder(@NonNull View itemView) {
super(itemView);
imageView = itemView.findViewById(R.id.imageSlide);
}
void setImage(SliderItem sliderItem) {
imageView.setImageResource(sliderItem.getImage());
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clickedListener.onPictureClicked(getAdapterPosition);
}
});
}
}
private Runnable runnable = new Runnable() {
@Override
public void run() {
sliderItems.addAll(sliderItems);
notifyDataSetChanged();
}
};
}
public class MainActivity extends AppCompatActivity implements ClickedListener{
private ViewPager2 viewPager2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager2 = findViewById(R.id.viewPagerImageSlider);
List<SliderItem> sliderItems = new ArrayList<>();
sliderItems.add(new SliderItem(R.drawable.image1));
sliderItems.add(new SliderItem(R.drawable.image2));
sliderItems.add(new SliderItem(R.drawable.image3));
sliderItems.add(new SliderItem(R.drawable.image4));
sliderItems.add(new SliderItem(R.drawable.image5));
viewPager2.setAdapter(new SliderAdapter(sliderItems, viewPager2, this));
viewPager2.setClipToPadding(false);
viewPager2.setClipChildren(false);
viewPager2.setOffscreenPageLimit(3);
viewPager2.getChildAt(0).setOverScrollMode(RecyclerView.OVER_SCROLL_NEVER);
CompositePageTransformer compositePageTransformer = new CompositePageTransformer();
compositePageTransformer.addTransformer(new MarginPageTransformer(40));
compositePageTransformer.addTransformer(new ViewPager2.PageTransformer() {
@Override
public void transformPage(@NonNull View page, float position) {
float r = 1 - Math.abs(position);
page.setScaleY(0.85f + r * 0.15f);
}
});
viewPager2.setPageTransformer(compositePageTransformer);
}
//on image clicked this method will be triggered.
@Override
public void onPictureClicked(int position) {
Intent intent = new Intent(getApplicationContext(), DetaildActivity.class);
intent.putExtra("key",position);
startActivity(intent);
}
}
creating this detailedActivity
to get intent from MainActivity
public class MainActivity1 extends AppCompatActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mainpage);
//the image position will be passed from the mainActivity to this DetailedActivity
int getPosition = getIntent().getIntExtra("key", -1);
}
}
This was just a demo through the interface that how you can implement the onClick in adapter to transfer or start another activity.
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