android - 如何在多个 TextView 中显示数组的内容？

Question

我正在尝试研究如何将以下数组 recipeDetail 的内容显示到以下 TextViews 中。我已经有一个用于 recyclerview 的适配器，只是想弄清楚如何填充其他 TextView。如果需要，我可以提供其他代码，例如。完整的类代码或 recyclerView 适配器。

XML

<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">

<com.google.android.material.tabs.TabLayout
    android:id="@+id/tabLayout"
    android:layout_width="409dp"
    android:layout_height="wrap_content"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <com.google.android.material.tabs.TabItem
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Recipe" />

    <com.google.android.material.tabs.TabItem
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Meal Plan" />

    <com.google.android.material.tabs.TabItem
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Shopping List" />
</com.google.android.material.tabs.TabLayout>

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    app:layout_constraintGuide_percent="0.5" />

<ImageView
    android:id="@+id/recipeImage"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintBottom_toTopOf="@+id/guideline4"
    app:layout_constraintEnd_toStartOf="@+id/guideline3"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/tabLayout" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.33" />

<TextView
    android:id="@+id/descriptionText"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:text="TextView"
    app:layout_constraintBottom_toTopOf="@+id/guideline4"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toEndOf="@+id/recipeImage"
    app:layout_constraintTop_toBottomOf="@+id/recipeName" />

<TextView
    android:id="@+id/courseText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="16dp"
    android:layout_marginLeft="16dp"
    android:text="TextView"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="@+id/guideline4" />

<TextView
    android:id="@+id/servingsText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="16dp"
    android:layout_marginLeft="16dp"
    android:text="TextView"
    app:layout_constraintStart_toStartOf="@+id/guideline3"
    app:layout_constraintTop_toTopOf="@+id/guideline4" />

<TextView
    android:id="@+id/costText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="16dp"
    android:layout_marginLeft="16dp"
    android:layout_marginTop="8dp"
    android:text="TextView"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/courseText" />

<TextView
    android:id="@+id/caloriesText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="16dp"
    android:layout_marginLeft="16dp"
    android:layout_marginTop="8dp"
    android:text="TextView"
    app:layout_constraintStart_toStartOf="@+id/guideline3"
    app:layout_constraintTop_toBottomOf="@+id/servingsText" />

<androidx.recyclerview.widget.RecyclerView
    android:id="@+id/listIngredient"
    android:name="com.stu54259.plan2cook.Recipe"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginTop="8dp"
    app:layoutManager="LinearLayoutManager"
    app:layout_constraintBottom_toTopOf="@+id/guideline7"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/caloriesText"
    tools:context=".Recipe"
    tools:listitem="@layout/fragment_item">

</androidx.recyclerview.widget.RecyclerView>

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline7"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.66" />

<TextView
    android:id="@+id/methodText"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:text="TextView"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/listIngredient" />

<TextView
    android:id="@+id/recipeName"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginTop="1dp"
    android:text="TextView"
    android:textSize="24dp"
    android:textStyle="bold"
    app:layout_constraintBottom_toTopOf="@+id/recipeImage"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/tabLayout" />


</androidx.constraintlayout.widget.ConstraintLayout>

爪哇

 public void loadRecipe() {
        recipeDetail.clear();
        db = (new DatabaseManager(this).getWritableDatabase());
        String query = "";
        String LOAD_RECIPE = " SELECT recipe_name, description, course, servings, calories, preparation_time, method, category, image, cost FROM " + TABLE_RECIPE;
        query = LOAD_RECIPE + " WHERE recipe_name LIKE ?";
        c = db.rawQuery(query, new String[]{"%" + search_name + "%"});
        if (cur.moveToFirst()) {
            do {
                com.stu54259.plan2cook.Model.Recipe recipe = new com.stu54259.plan2cook.Model.Recipe();
                recipe.setRecipe_name(cur.getString(cur.getColumnIndex("recipe_name")));
                recipe.setDescription(cur.getString(cur.getColumnIndex("description")));
                recipe.setCourse(cur.getString(cur.getColumnIndex("course")));
                recipe.setServings(cur.getInt(cur.getColumnIndex("servings")));
                recipe.setCalories(cur.getDouble(cur.getColumnIndex("calories")));
                recipe.setPreparation_time(cur.getString(cur.getColumnIndex("preparation_time")));
                recipe.setMethod(cur.getString(cur.getColumnIndex("method")));
                recipe.setCategory(cur.getString(cur.getColumnIndex("category")));
                recipe.setImage(cur.getString(cur.getColumnIndex("image")));
                recipe.setCost(cur.getDouble(cur.getColumnIndex("cost")));
                recipeDetail.add(recipe);
            } while (c.moveToNext());
            cur.close();
        }

    }

更新

package com.stu54259.plan2cook;

import android.annotation.SuppressLint;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.recyclerview.widget.DefaultItemAnimator;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import com.google.android.material.tabs.TabLayout;
import com.stu54259.plan2cook.Model.RecipeList;
import com.stu54259.plan2cook.database.DatabaseManager;

import java.util.ArrayList;
import java.util.List;

import static com.stu54259.plan2cook.database.DatabaseManager.*;

public class Recipe extends MainActivity {

    TabLayout tabLayout;
    ImageView recipeImage;
    TextView recipeName, descriptionText, courseText, servingsText, costText, caloriesText, methodText;
    RecyclerView listIngredient;
    SQLiteDatabase db;
    String search_name;
    Cursor c, cur;
    RecyclerViewAdapter adapterRecipe;
    List<RecipeList> itemRecipe = new ArrayList<>();
    List<com.stu54259.plan2cook.Model.Recipe> recipeDetail = new ArrayList<>();


    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.recipe);
        //search_name = getIntent().getStringExtra("NAME");
        search_name = "Speedy chicken couscous";

        loadIngredient();
        //recyclerview Recipe
        adapterRecipe = new RecyclerViewAdapter(this, itemRecipe);
        listIngredient = findViewById(R.id.listIngredient);


        RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(this,
                LinearLayoutManager.VERTICAL, false);
        listIngredient.setLayoutManager(mLayoutManager);
        listIngredient.setItemAnimator(new DefaultItemAnimator());
        listIngredient.setAdapter(adapterRecipe);
        loadRecipe();
        // Code not completed, just thought something like this might work
        recipeName = findViewById(R.id.recipeName);
        recipeName.setText(getRecipe_name());
    }
    public void loadIngredient() {
        itemRecipe.clear();
        db = (new DatabaseManager(this).getWritableDatabase());
        String RECIPE_SEARCH = " SELECT A.recipe, A.ingredient_quantity, B.measurement_name, B.ingredient_name, B.description " +
                "FROM " + DatabaseManager.TABLE_QUANTITY + " AS A JOIN " + DatabaseManager.TABLE_INGREDIENTS +
                " AS B ON A.ingredient = B.ingredient_name";
        String selectQuery = "";
        selectQuery = RECIPE_SEARCH + " WHERE A.recipe LIKE ?";
        c = db.rawQuery(selectQuery, new String[]{"%" + search_name + "%"});
        if (c.moveToFirst()) {
            do {
                RecipeList recipeList = new RecipeList();
                recipeList.setRecipe(c.getString(c.getColumnIndex("recipe")));
                recipeList.setIngredient_amount(c.getString(c.getColumnIndex("ingredient_quantity")));
                recipeList.setMeasurement_name(c.getString(c.getColumnIndex("measurement_name")));
                recipeList.setIngredient_name(c.getString(c.getColumnIndex("ingredient_name")));
                recipeList.setDescription(c.getString(c.getColumnIndex("description")));
                itemRecipe.add(recipeList);
            } while (c.moveToNext());
            c.close();
        }

    }
    public void loadRecipe() {
        recipeDetail.clear();
        db = (new DatabaseManager(this).getWritableDatabase());
        String query = "";
        String LOAD_RECIPE = " SELECT recipe_name, description, course, servings, calories, preparation_time, method, category, image, cost FROM " + TABLE_RECIPE;
        query = LOAD_RECIPE + " WHERE recipe_name LIKE ?";
        c = db.rawQuery(query, new String[]{"%" + search_name + "%"});
        if (cur.moveToFirst()) {
            do {
                com.stu54259.plan2cook.Model.Recipe recipe = new com.stu54259.plan2cook.Model.Recipe();
                recipe.setRecipe_name(cur.getString(cur.getColumnIndex("recipe_name")));
                recipe.setDescription(cur.getString(cur.getColumnIndex("description")));
                recipe.setCourse(cur.getString(cur.getColumnIndex("course")));
                recipe.setServings(cur.getInt(cur.getColumnIndex("servings")));
                recipe.setCalories(cur.getDouble(cur.getColumnIndex("calories")));
                recipe.setPreparation_time(cur.getString(cur.getColumnIndex("preparation_time")));
                recipe.setMethod(cur.getString(cur.getColumnIndex("method")));
                recipe.setCategory(cur.getString(cur.getColumnIndex("category")));
                recipe.setImage(cur.getString(cur.getColumnIndex("image")));
                recipe.setCost(cur.getDouble(cur.getColumnIndex("cost")));
                recipeDetail.add(recipe);
            } while (c.moveToNext());
            cur.close();
        }

    }
}

标签： androidarraystextview