android - Listview 上的最后一项被截断

Question

所以在我的 Android 应用程序中，主要 Activity 有选项卡，每个选项卡中都有一个包含 ListView 的 fragment 。但由于某种原因， ListView 中的最后一项总是被切断。我四处寻找解决方案，但我还没有找到任何解决方案。有什么建议吗？

主要 Activity 布局

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/rl"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

        <android.support.design.widget.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabMode="fixed"
            app:tabGravity="fill"/>


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

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"  />
</android.support.design.widget.CoordinatorLayout>

带有 ListView 的 fragment

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

    <ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        style="@style/Widget.AppCompat.ProgressBar" />

    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical">

        <ListView
            android:id="@+id/list"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            style="@style/Widget.AppCompat.ProgressBar"></ListView>

    </LinearLayout>
</RelativeLayout>

列表项布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:padding="2dp"
    android:layout_margin="5dp">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="New Text"
        android:id="@+id/title"
        android:textSize="20sp"
        android:textStyle="bold"
        android:typeface="normal"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="New Text"
        android:id="@+id/author"
        android:textSize="15sp"
        android:typeface="normal"
        android:layout_below="@+id/publishdate"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="New Text"
        android:id="@+id/publishdate"
        android:textSize="15sp"
        android:typeface="normal"
        android:layout_below="@+id/title"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

</LinearLayout>

列出适配器类

package com.czhou.dailyprincetoniannewspaper.adapters;

import android.content.ClipData;
import android.content.Context;
import android.graphics.Paint;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;


import com.czhou.dailyprincetoniannewspaper.NewspaperMetaObject;
import com.czhou.dailyprincetoniannewspaper.R;

import java.util.List;

public class NewsListAdapter extends ArrayAdapter<NewspaperMetaObject> {

    static class ViewHolder {
        TextView author;
        TextView publishdate;
        TextView title;
    }

    private LayoutInflater inflater;
    List<NewspaperMetaObject> newsitems;
    public NewsListAdapter(Context context, List<NewspaperMetaObject> items) {
        super(context, R.layout.newslistitem, items);
        this.newsitems = items;
        inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

             ViewHolder viewHolder;

        if (convertView == null) {
            convertView = inflater.inflate(R.layout.newslistitem, parent, false);

            viewHolder = new ViewHolder();
            viewHolder.title = (TextView) convertView.findViewById(R.id.title);
            viewHolder.author = (TextView) convertView.findViewById(R.id.author);
            viewHolder.publishdate = (TextView) convertView.findViewById(R.id.publishdate);
            convertView.setTag(viewHolder);

        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        viewHolder.title.setText(newsitems.get(position).getArticleTitle());
        viewHolder.title.setPaintFlags(Paint.UNDERLINE_TEXT_FLAG);
        viewHolder.publishdate.setText(newsitems.get(position).getArticlePublishDate());
        viewHolder.author.setText(newsitems.get(position).getArticleAuthor());
        System.out.println(viewHolder.publishdate.getText());

        return convertView;
    }

}

主要 Activity 类

package com.czhou.dailyprincetoniannewspaper;

import android.os.Bundle;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;

import java.util.ArrayList;
import java.util.List;
/**
 * Created by czhou on 11/21/2015.
 */
public class MainActivity extends AppCompatActivity {

    private Toolbar toolbar;
    private TabLayout tabLayout;
    private ViewPager viewPager;
    private ProgressBar mProgressBar;
    private CoordinatorLayout coordinatorLayout;

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

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);


        viewPager = (ViewPager) findViewById(R.id.viewpager);
        setupViewPager(viewPager);

        tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);
    }

    private void setupViewPager(ViewPager viewPager){
        ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
        adapter.addFragment(new PUNewsFragment(), "News");
        adapter.addFragment(new PUSportsFragment(), "Sports");

        viewPager.setAdapter(adapter);
    }

    class ViewPagerAdapter extends FragmentPagerAdapter {
        private final List<Fragment> mFragmentList = new ArrayList<>();
        private final List<String> mFragmentTitleList = new ArrayList<>();

        public ViewPagerAdapter(FragmentManager manager) {
            super(manager);
        }

        @Override
        public Fragment getItem(int position) {
            return mFragmentList.get(position);
        }

        @Override
        public int getCount() {
            return mFragmentList.size();
        }

        public void addFragment(Fragment fragment, String title) {
            mFragmentList.add(fragment);
            mFragmentTitleList.add(title);
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return mFragmentTitleList.get(position);
        }
    }
}

Answer 1

将类似 android:paddingBottom="20dp" 的行放入 Fragment XML 文件中的 ListView 项目中。调整 20dp 值，直到它看起来像您想要的那样。

由于某些奇怪的原因，它只是解决了问题，并且与正在更改的 ListView 的大小无关。不知何故，小填充迫使 ListView 以不同的方式布局。