我的网格视图内有一个按钮，我想在单击该按钮（位于网格视图内）时将数据发送到另一个 activity

Question

我google了一下，发现自定义适配器可以解决这个问题，但是无法在这段代码中实现，谁能帮我解决一下。

我所有的网格视图都在这个片段中工作。

public class HomeFragment extends Fragment {

private HomeViewModel homeViewModel;
private GridView gridView;
String canWaterName[] = {"Bisleri","Aqua Gold","Kinley"};
String canWaterPrice[] = {"Rs 90","Rs 45","Rs 110"};
int canWaterImage[] = {R.drawable.canwater,R.drawable.canwater,R.drawable.canwater};
public View onCreateView(@NonNull LayoutInflater inflater, final ViewGroup container, Bundle savedInstanceState) {
    homeViewModel = ViewModelProviders.of(this).get(HomeViewModel.class);
    View root = inflater.inflate(R.layout.fragment_home, container, false);
    gridView = root.findViewById(R.id.gridview);
    CustomAdapter customAdapter = new CustomAdapter();
    gridView.setAdapter(customAdapter);
    gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
            Intent intent = new Intent(getActivity(), OrderSummary.class);
            intent.putExtra("name",canWaterName[i]);
            intent.putExtra("price",canWaterPrice[i]);
            intent.putExtra("image",canWaterImage[i]);
            startActivity(intent);
        }
    });
    return root;
}
public class CustomAdapter extends BaseAdapter {
    @Override
    public int getCount() {
        return canWaterImage.length;
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view1 = getLayoutInflater().inflate(R.layout.row_data,null);
        //getting view in row_data
        TextView name = view1.findViewById(R.id.canwaterName);
        TextView price = view1.findViewById(R.id.canwaterPrice);
        ImageView image = view1.findViewById(R.id.images);
        Button buy = view1.findViewById(R.id.buyButton);
        buy.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        });
        name.setText(canWaterName[position]);
        price.setText(canWaterPrice[position]);
        image.setImageResource(canWaterImage[position]);
        return view1;
    }
   }
  }

fragment_Home.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<GridView
    android:id="@+id/gridview"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/gridBackground"
    android:paddingLeft="10dp"
    android:paddingRight="10dp"
    android:paddingTop="20dp"
    android:paddingBottom="20dp"
    android:horizontalSpacing="10dp"
    android:verticalSpacing="15dp"
    android:clickable="true"
    android:numColumns="2"
    app:layout_constraintBottom_toBottomOf="parent"></GridView>
 </androidx.constraintlayout.widget.ConstraintLayout>

这是我的网格视图模板。

row_data.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    android:id="@+id/gridviewdata"
    android:layout_width="wrap_content"
    android:background="#fff"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:elevation="5dp"
    android:clickable="false"
    android:focusable="false"
    android:focusableInTouchMode="false"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/canwaterName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Bisleri"
        android:textSize="14dp"
        android:textStyle="normal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.456"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/images"
        android:layout_marginTop="5dp" />

<TextView
    android:id="@+id/canwaterPrice"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="5dp"
    android:text="Rs 90"
    android:textSize="14dp"
    android:textStyle="bold"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.463"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/canwaterName" />

<ImageView
    android:id="@+id/images"
    android:layout_width="140dp"
    android:layout_height="140dp"
    android:src="@drawable/canwater"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.46"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<Button
    android:id="@+id/buyButton"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginTop="10dp"
    android:layout_marginBottom="10dp"
    android:background="@color/colorPrimary"
    android:text="BUY"
    android:textColor="@color/white"
    android:textSize="14sp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHeight_percent="0.14"
    app:layout_constraintHorizontal_bias="0.46"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/canwaterPrice"
    app:layout_constraintVertical_bias="0.0"
    app:layout_constraintWidth_percent="0.45" />

</androidx.constraintlayout.widget.ConstraintLayout>

我想在单击网格视图中的按钮时向此 activity 发送数据。

activity_ordered_summary.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".OrderSummary">

<ImageView
    android:id="@+id/canWaterOrder"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:srcCompat="@drawable/canwater" />

<TextView
    android:id="@+id/canWaterNameOrder"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="50dp"
    android:text="Bisleri"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/canWaterOrder" />

<TextView
    android:id="@+id/canWaterPriceOrder"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="50dp"
    android:layout_marginBottom="120dp"
    android:text="Rs 90"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.485"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/canWaterNameOrder"
    app:layout_constraintVertical_bias="0.29000002" />
</androidx.constraintlayout.widget.ConstraintLayout>

OrderedSummary.java

public class OrderSummary extends AppCompatActivity {
TextView canWaterName,canWaterPrice;
ImageView image;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_order_summary);
    canWaterName = findViewById(R.id.canWaterNameOrder);
    canWaterPrice = findViewById(R.id.canWaterPriceOrder);
    image = findViewById(R.id.canWaterOrder);
    Intent intent = getIntent();
    canWaterName.setText(intent.getStringExtra("name"));
    canWaterPrice.setText(intent.getStringExtra("price"));
    image.setImageResource(intent.getIntExtra("image",0));
}

Answer 1

gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) 
        {
            if(view.getId() == R.id.buyButton) {
                Intent intent = new Intent(getActivity(), OrderSummary.class);
                intent.putExtra("name", canWaterName[i]);
                intent.putExtra("price", canWaterPrice[i]);
                intent.putExtra("image", canWaterImage[i]);
                startActivity(intent);
            }
        }
    });

内部自定义适配器

@Override
    public View getView(final int position, View convertView, final ViewGroup parent) {
        View view1 = getLayoutInflater().inflate(R.layout.row_data,null);
        //getting view in row_data
        final TextView name = view1.findViewById(R.id.canwaterName);
        final TextView price = view1.findViewById(R.id.canwaterPrice);
        final ImageView image = view1.findViewById(R.id.images);
        name.setText(canWaterName[position]);
        price.setText(canWaterPrice[position]);
        image.setImageResource(canWaterImage[position]);
        final Button buy = view1.findViewById(R.id.buyButton);
        buy.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ((GridView)parent).performItemClick(v,position,0);
            }
        });
        return view1;
    }

我的网格视图内有一个按钮，我想在单击该按钮（位于网格视图内）时将数据发送到另一个 activity

I have a button inside my grid view, I want to send data to another activity when the button (which is inside grid view) is clicked

android-gridview