java - 如何根据点击的item改变listview的内容？

Question

有一个 ListView ，如果我单击 ListView 中的一个项目，它必须为在 ListView 中单击的所有项目转到相同的 Activity ，我需要的是相同的 Activity 必须根据他们的不同显示内容相应的点击项目。我对该 Activity 有疑问，如何为各自的点击创建那个 Activity 并获取他们的数据

 public class SouthIndianvegrecipes1  extends Activity {

     @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            ArrayList<Recipedetails> image_details = GetSearchResults();

            final ListView lv1 = (ListView) findViewById(R.id.listV_main);
            lv1.setAdapter(new ItemListBaseAdapter(this, image_details));

            lv1.setOnItemClickListener(new OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> a, View v, int position, long id) { 
                    Object o = lv1.getItemAtPosition(position);
                    Recipedetails obj_itemDetails = (Recipedetails)o;
                    Toast.makeText(SouthIndianvegrecipes1.this, "You have chosen : " + " " + obj_itemDetails.getName(), Toast.LENGTH_LONG).show();
                     Intent newActivity = new Intent(SouthIndianvegrecipes1.this, 
                                SouthIndianvegmanualrecipes.class);     
                                startActivity(newActivity);
                    /*switch(obj_itemDetails.getImageNumber())
                    {
                        case 1:
                             Intent newActivity = new Intent(SouthIndianvegrecipes1.this, 
                            SouthIndianvegrecipes.class);     
                            startActivity(newActivity);
                            break;

                        case 2:
                            Intent new1Activity = new Intent(SouthIndianvegrecipes1.this, 
                                    SouthIndiannonvegrecipes.class);     
                            startActivity(new1Activity);
                            break;

                        case 3:
                            Intent new2Activity = new Intent(SouthIndianvegrecipes1.this, 
                                    SouthIndianpickelsrecipes.class);     
                            startActivity(new2Activity);
                            break; 

                        case 4:
                            Intent new3Activity = new Intent(SouthIndianvegrecipes1.this, 
                                    SouthIndiansoupsrecipes.class);     
                            startActivity(new3Activity);
                            break;      

                       default:
                           Toast.makeText(SouthIndianvegrecipes1.this, "Wrong Input", Toast.LENGTH_LONG).show();
                    }*/
                     /*if(obj_itemDetails.getName().equals("Vegeterain"))
                     {

                        Intent newActivity = new Intent(SouthIndian.this, 
                                                     SouthIndianvegrecipes.class);     
                        startActivity(newActivity);
                     }

                     else
                       {
                        Intent new1Activity = new Intent(SouthIndian.this, 
                                SouthIndiannonvegrecipes.class);     
                        startActivity(new1Activity);

                     //same for other Activity
                  } */
                } 
            });
        }

        private ArrayList<Recipedetails> GetSearchResults(){
            ArrayList<Recipedetails> results = new ArrayList<Recipedetails>();

            Recipedetails item_details = new Recipedetails();
            item_details.setName("Godhumai veg adai");
            item_details.setItemDescription("This is very good for dibets people");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(12);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("Soyamore koozh");
            item_details.setItemDescription("Tasty to have this as main dish");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(13);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("Tomato kulambu");
            item_details.setItemDescription("Good side dish for rice and dinner");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(14);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("Tomato upma");
            item_details.setItemDescription("Evening time  dinner for kids");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(15);
            results.add(item_details);


            item_details = new Recipedetails();
            item_details.setName("Tomato upma");
            item_details.setItemDescription("Evening time  dinner for kids");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(15);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("Navratri special vada");
            item_details.setItemDescription("Good snacks at the function");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(16);
            results.add(item_details);


            item_details = new Recipedetails();
            item_details.setName("Egg kurma");
            item_details.setItemDescription("Wonderful dish made by egg");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(17);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("Milagu kuzhambu");
            item_details.setItemDescription("Good for digestion purpose");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(18);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("Rasam");
            item_details.setItemDescription("Last and famous dish in lunch,good for health also");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(19);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("Vegetable kootu");
            item_details.setItemDescription("Nice and healthy one");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(20);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("Avial");
            item_details.setItemDescription("Easy to prepare and lots of vegetable");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(21);
            results.add(item_details);

            item_details = new Recipedetails();
            item_details.setName("kothavarangaicurry");
            item_details.setItemDescription("Tamilnadu special and healthy too");
            //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
            item_details.setImageNumber(22);
            results.add(item_details);


            return results;
        }

}这是代码，如果我在 ListView 中单击该项目，它必须转到下一个 Activity 以及我将为项目写入数据的位置

 public class SouthIndianvegmanualrecipes  extends Activity {

         private Object getIntent;

        @Override
            public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.recipe_manual);

                ArrayList<Recipedetails2> image_details = GetSearchResults();

                final ListView lv1 = (ListView) findViewById(R.id.listV_main);
                lv1.setAdapter(new ItemListBaseAdapter2(this, image_details));

               /* lv1.setOnItemClickListener(new OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView<?> a, View v, int position, long id) { 
                        Object o = lv1.getItemAtPosition(position);
                        Recipedetails obj_itemDetails = (Recipedetails)o;
                        Toast.makeText(SouthIndianvegrecipes1.this, "You have chosen : " + " " + obj_itemDetails.getName(), Toast.LENGTH_LONG).show();
                         Intent newActivity = new Intent(SouthIndianvegrecipes1.this, 
                                    SouthIndianvegmanualrecipes.class);     
                                    startActivity(newActivity);
                        /*switch(obj_itemDetails.getImageNumber())
                        {
                            case 1:
                                 Intent newActivity = new Intent(SouthIndianvegrecipes1.this, 
                               SouthIndianvegrecipes.class);     
                               startActivity(newActivity);
                                break;

                            case 2:
                                Intent new1Activity = new Intent(SouthIndianvegrecipes1.this, 
                                        SouthIndiannonvegrecipes.class);     
                                startActivity(new1Activity);
                                break;

                            case 3:
                                Intent new2Activity = new Intent(SouthIndianvegrecipes1.this, 
                                        SouthIndianpickelsrecipes.class);     
                                startActivity(new2Activity);
                                break; 

                            case 4:
                                Intent new3Activity = new Intent(SouthIndianvegrecipes1.this, 
                                        SouthIndiansoupsrecipes.class);     
                                startActivity(new3Activity);
                                break;      

                           default:
                               Toast.makeText(SouthIndianvegrecipes1.this, "Wrong Input", Toast.LENGTH_LONG).show();
                        }*/
                         /*if(obj_itemDetails.getName().equals("Vegeterain"))
                         {

                            Intent newActivity = new Intent(SouthIndian.this, 
                                                         SouthIndianvegrecipes.class);     
                            startActivity(newActivity);
                         }

                         else
                           {
                            Intent new1Activity = new Intent(SouthIndian.this, 
                                    SouthIndiannonvegrecipes.class);     
                            startActivity(new1Activity);

                         //same for other Activity
                      } */
                    //} 
                //});
            }
        Bundle extras = getIntent().getExtras();
        int[] obj_itemDetails.getImageNumber() = extras.getIntArray("numbers");

            private ArrayList<Recipedetails2> GetSearchResults(){
                ArrayList<Recipedetails2> results = new ArrayList<Recipedetails2>();

                Recipedetails2 item_details = new Recipedetails2();
                item_details.setName("Godhumai veg adai");
                item_details.setIngredients("This is very good for dibets people");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(12);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("Soyamore koozh");
                item_details.setIngredients("Tasty to have this as main dish");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(13);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("Tomato kulambu");
                item_details.setIngredients("Good side dish for rice and dinner");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(14);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("Tomato upma");
                item_details.setIngredients("Evening time  dinner for kids");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(15);
                results.add(item_details);


                item_details = new Recipedetails2();
                item_details.setName("Tomato upma");
                item_details.setIngredients("Evening time  dinner for kids");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(15);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("Navratri special vada");
                item_details.setIngredients("Good snacks at the function");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(16);
                results.add(item_details);


                item_details = new Recipedetails2();
                item_details.setName("Egg kurma");
                item_details.setIngredients("Wonderful dish made by egg");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(17);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("Milagu kuzhambu");
                item_details.setIngredients("Good for digestion purpose");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(18);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("Rasam");
                item_details.setIngredients("Last and famous dish in lunch,good for health also");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(19);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("Vegetable kootu");
                item_details.setIngredients("Nice and healthy one");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(20);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("Avial");
                item_details.setIngredients("Easy to prepare and lots of vegetable");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(21);
                results.add(item_details);

                item_details = new Recipedetails2();
                item_details.setName("kothavarangaicurry");
                item_details.setIngredients("Tamilnadu special and healthy too");
                item_details.setMethods("This is very good for dibets people");
                //item_details.setUrlWiki("https://www.youtube.com/watch?v=C_r0mFvMSfU");
                item_details.setImageNumber(22);
                results.add(item_details);


                return results;
            }

    }

这里我将如何编写获取数据的代码我的 xml 文件，我想把代码放在这里，比如相应的点击

 <?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"

  android:orientation="vertical"

  >

  <ImageView
    android:id="@+id/itemphoto"
    android:layout_height="wrap_content"
    android:layout_width="fill_parent"
    android:layout_gravity="top"
    android:padding="20dp"
    android:scaleType="center"
  ></ImageView>

  <TextView
      android:text="Ingredients:"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:gravity="left" />

  <TextView android:id="@+id/itemIngredients"
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:scaleType="center" />

   <TextView
      android:text="Method:"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:gravity="left" />

  <TextView android:id="@+id/methods"
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:scaleType="center" />

</LinearLayout>

Answer 1

您可以根据 ListView 项目的位置或名称更改日期。假设

String name[]={"a","b","c","d"};
lv1.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> a, View v, int position, long id) { 
                   String current=name[position];

//now put condition here to start different activity

if(current.equals("a"))
{
//do operation what u have to do for a
}else if(current.equals("b"))
{
//do operation what u have to do for b
}
similarly put here condition for all
        });

祝你好运