在TabActivity中的ListView中创建多个按钮计数器

Question

我试图制作一款应用程序，以便在高尔夫比赛中保持得分。要做到这一点，我在一个标签活动中有18个标签（每个洞一个），然后在每个标签中我有一个ListView，其中包含一个玩家列表，他们的洞的分数，以及加号和减号按钮。

我需要做到这一点，以便连续按下加号按钮会增加玩家在那个洞的得分，但我在找出OnClickListener的位置和方法以及如何处理索引玩家和洞。

我对Android Studio非常陌生，所以非常感谢任何帮助！

HoleTabsActivity.java

package com.txstate.zms22.urban;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;



public class HoleTabsActivity extends FragmentActivity {

    int NUMBER_OF_HOLES = 18;

    private SectionsPagerAdapter mSectionsPagerAdapter;

    private ViewPager mViewPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_hole_tabs);

        mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

        // Set up the ViewPager with the sections adapter.
        mViewPager = (ViewPager) findViewById(R.id.container);
        mViewPager.setAdapter(mSectionsPagerAdapter);

        String[] names = getResources().getStringArray(R.array.players);
        int[] scores = new int[names.length];

        ListView tabbedScorecard_ListView = findViewById(R.id.tabbedScorecard_ListView);
        ItemAdapter adapter = new ItemAdapter(getApplicationContext(), names, scores);
        tabbedScorecard_ListView.setAdapter(adapter);

        Button minus_Button = findViewById(R.id.minus_Button);

        minus_Button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                scores[i]++;
            }
        });


    }


    @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_hole_tabs, 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();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {
        /**
         * The fragment argument representing the section number for this
         * fragment.
         */
        private static final String ARG_SECTION_NUMBER = "section_number";

        public PlaceholderFragment() {
        }

        /**
         * Returns a new instance of this fragment for the given section
         * number.
         */
        public static PlaceholderFragment newInstance(int sectionNumber) {
            PlaceholderFragment fragment = new PlaceholderFragment();
            Bundle args = new Bundle();
            args.putInt(ARG_SECTION_NUMBER, sectionNumber);
            fragment.setArguments(args);
            return fragment;
        }






        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View view = inflater.inflate(R.layout.fragment_hole_tabs, container, false);
            TextView textView = view.findViewById(R.id.sectionLabel_TextView);
            textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));

            Button minus_Button = view.findViewById(R.id.minus_Button);
            TextView holeScore_TextView = view.findViewById(R.id.holeScore_TextView);


            return view;


        }
    }

    public class SectionsPagerAdapter extends FragmentPagerAdapter {

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            // getItem is called to instantiate the fragment for the given page.
            // Return a PlaceholderFragment (defined as a static inner class below).
            return PlaceholderFragment.newInstance(position + 1);
        }

        @Override
        public int getCount() {
            // Show 1 page per number of holes
            return NUMBER_OF_HOLES;
        }
    }
}

activity_hole_tabs.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="com.txstate.zms22.urban.HoleTabsActivity">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="@dimen/appbar_padding_top"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:layout_weight="1"
            android:background="?attr/colorPrimary"

            app:popupTheme="@style/AppTheme.PopupOverlay"
            app:title="@string/app_name">

        </android.support.v7.widget.Toolbar>

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentBottom="true"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />

</android.support.design.widget.CoordinatorLayout>

fragment_hole_tabs.xml

<android.support.constraint.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:id="@+id/constraintLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.txstate.zms22.urban.HoleTabs$PlaceholderFragment">

    <LinearLayout
        android:id="@+id/linearLayout"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical">

        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="Header" />

        <ListView
            android:id="@+id/tabbedScorecard_ListView"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1" />

        <View
            android:id="@+id/myRectangleView"
            android:layout_width="match_parent"
            android:layout_height="48dp"
            android:background="@drawable/hole_number_background" />
    </LinearLayout>

    <TextView
        android:id="@+id/sectionLabel_TextView"
        android:layout_width="wrap_content"
        android:layout_height="30dp"
        android:layout_marginEnd="@dimen/activity_horizontal_margin"
        android:layout_marginStart="@dimen/activity_horizontal_margin"
        android:text="Hole ##"
        android:textColor="@color/holeUnderline"
        android:textSize="24dp"
        app:layout_constraintBottom_toTopOf="@+id/holeUnderline_View"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        tools:layout_constraintLeft_creator="1"
        tools:layout_constraintTop_creator="1" />

    <View
        android:id="@+id/holeUnderline_View"
        android:layout_width="112dp"
        android:layout_height="8dp"
        android:background="@drawable/hole_number_underline"
        app:layout_constraintEnd_toStartOf="@+id/linearLayout"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@+id/linearLayout"
        app:layout_constraintBottom_toBottomOf="parent"
        tools:layout_editor_absoluteY="481dp" />


</android.support.constraint.ConstraintLayout>

ItemAdapter.java

package com.txstate.zms22.urban;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.TextView;

public class ItemAdapter extends BaseAdapter {
    LayoutInflater mInflater;
    String[] players;
    int[] scores;

    public ItemAdapter(Context c, String[] p, int[] s) {
        players = p;
        scores = s;
        mInflater = (LayoutInflater) c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }


    @Override
    public int getCount() {
        return players.length;
    }

    @Override
    public Object getItem(int i) {
        return players[i];
    }

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


    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {

        View v = mInflater.inflate(R.layout.player_list, null);

        TextView name_TextView = v.findViewById(R.id.name_TextView);
        String name = players[i];
        name_TextView.setText(name);

        TextView holeScore_TextView = v.findViewById(R.id.holeScore_TextView);
        int score = scores[i];
        holeScore_TextView.setText(score +"");


        Button minus_Button = v.findViewById(R.id.minus_Button);
        Button plus_Button = v.findViewById(R.id.plus_Button);





        return v;
    }
}

player_list.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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:layout_editor_absoluteY="81dp">


    <TextView
        android:id="@+id/name_TextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:text="Player Name"
        android:textSize="@dimen/text_size"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/holeScore_TextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:text="3"
        android:textSize="@dimen/text_size"
        app:layout_constraintBottom_toBottomOf="@+id/minus_Button"
        app:layout_constraintEnd_toStartOf="@+id/plus_Button"
        app:layout_constraintStart_toEndOf="@+id/minus_Button"
        app:layout_constraintTop_toTopOf="@+id/minus_Button"
        app:layout_constraintVertical_bias="0.45" />

    <Button
        android:id="@+id/minus_Button"
        android:layout_width="@dimen/box_size"
        android:layout_height="@dimen/box_size"
        android:layout_marginStart="225dp"
        android:text="-"
        android:textSize="20sp"
        app:layout_constraintBottom_toBottomOf="@+id/name_TextView"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/name_TextView" />

    <Button
        android:id="@+id/plus_Button"
        android:layout_width="@dimen/box_size"
        android:layout_height="@dimen/box_size"
        android:layout_marginEnd="16dp"
        android:text="+"
        android:textSize="20sp"
        app:layout_constraintBottom_toBottomOf="@+id/holeScore_TextView"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="@+id/holeScore_TextView"
        app:layout_constraintVertical_bias="0.55" />

</android.support.constraint.ConstraintLayout>

播放器列表布局 The layout of each player's information in the ListView

如果我的帖子中有更多信息，请告诉我！ 再次感谢。