Question

我对如何更改列表中文本的大小，然后将其添加到ListView感兴趣。我正在使用自定义布局的list_item。问题是如何在文本进入ListView之前设置文本的大小。我希望得到你的帮助。

list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    xmlns:android1="http://schemas.android.com/apk/res/android">

<LinearLayout
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    >

    <TextView
        android:id="@+id/shop_name"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="1"
        />

    <TextView
        android:id="@+id/shop_address"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="2"
        />

</LinearLayout>

</LinearLayout>

day_list_events.xml

<?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"
    android:layout_gravity="center"
    android:id="@+id/layout"
    >

<TextView 
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:id="@+id/day_and_data"
    android:text="Перелік клієнтів на сьогоднішній день."
    android:textStyle="bold"
    />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:id="@+id/help_info"
    android:text="(Щоб отримати інформацію про клієнта та оформити замовлення - натисніть на відповідного клієнта у списку)"
    android:textColor="#A0A0A0"
    />

<ListView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/day_list_event"
    >

</ListView>

</LinearLayout>

DayListEventsActivity.java

import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.os.Bundle;
import android.view.Window;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class DayListEventsActivity extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
    this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    super.onCreate(savedInstanceState);
    setContentView(R.layout.day_list_events);
    sharedPreferences = getSharedPreferences("impInfo", Context.MODE_PRIVATE);
    Resources res = this.getResources();
    ArrayList<HashMap<String, String>> dayShopsInfo = new ArrayList<HashMap<String, String>>();
    String[] shopName = res.getStringArray(R.array.shop_name);
    String[] shopAddress = res.getStringArray(R.array.shop_address);        
    for(int i = 0; i < shopName.length; i++){
        HashMap<String, String> dayShopsInfoCont = new HashMap<String, String>();
        dayShopsInfoCont.put(KEY_SHOP_NAME, shopName[i]);
        dayShopsInfoCont.put(KEY_SHOP_ADDRESS, shopAddress[i]);
        System.out.println(i+" "+shopName[i]+" "+shopAddress[i]);
        dayShopsInfo.add(dayShopsInfoCont);         
    }
    ListView shopList = (ListView)findViewById(R.id.day_list_event);
    SimpleAdapter shopListAdapter = new SimpleAdapter(this,
            dayShopsInfo,
            R.layout.list_item,
            new String[]{KEY_SHOP_NAME, KEY_SHOP_ADDRESS},
            new int[]{R.id.shop_name, R.id.shop_address});
    shopList.setAdapter(shopListAdapter);
    shopList.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
}

private final String KEY_SHOP_NAME = "shop name";
private final String KEY_SHOP_ADDRESS = "shop address";
private SharedPreferences sharedPreferences;
}

更新（解决方案）。

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

public class DayListEventsActivity extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
    this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    super.onCreate(savedInstanceState);
    setContentView(R.layout.day_list_events);
    sharedPreferences = getSharedPreferences("impInfo", Context.MODE_PRIVATE);
    Resources res = this.getResources();
    ArrayList<HashMap<String, String>> dayShopsInfo = new ArrayList<HashMap<String, String>>();
    String[] shopName = res.getStringArray(R.array.shop_name);
    String[] shopAddress = res.getStringArray(R.array.shop_address);        
    for(int i = 0; i < shopName.length; i++){
        HashMap<String, String> dayShopsInfoCont = new HashMap<String, String>();
        dayShopsInfoCont.put(KEY_SHOP_NAME, shopName[i]);
        dayShopsInfoCont.put(KEY_SHOP_ADDRESS, shopAddress[i]);
        System.out.println(i+" "+shopName[i]+" "+shopAddress[i]);
        dayShopsInfo.add(dayShopsInfoCont);         
    }
    ListView shopList = (ListView)findViewById(R.id.day_list_event);
    MySimpleAdapter shopListAdapter = new MySimpleAdapter(this,
            dayShopsInfo,
            R.layout.list_item,
            new String[]{KEY_SHOP_NAME, KEY_SHOP_ADDRESS},
            new int[]{R.id.shop_name, R.id.shop_address});
    shopList.setAdapter(shopListAdapter);
    shopList.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
}

public class MySimpleAdapter extends SimpleAdapter{

    public MySimpleAdapter(Context context,
                            List<? extends Map<String, ?>> data,
                            int resource,
                            String[] from, int[] to) {
        super(context, data, resource, from, to);           
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent){
        View returnView = super.getView(position, convertView, parent);
        TextView shopName = (TextView)returnView.findViewById(R.id.shop_name);
        shopName.setTextSize(20.0f);
        return returnView;
    }

}

private final String KEY_SHOP_NAME = "shop name";
private final String KEY_SHOP_ADDRESS = "shop address";
private SharedPreferences sharedPreferences;
}

Answer 1

只需在getView()的{{1}}方法中执行此操作，即可设置Adapter大小。

font

Answer 2

如果您使用xml设置list_item的布局，并且您有TextView，则可以更改文本的大小，如下所示：

<TextView  
    android:id="@+id/text_id"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:textSize="20sp" /> // This is a size of your text

Answer 3

没有“文字大小” 您可以更改TextView中文本的大小：添加：

 android:textSize="16sp"

到您的XML 或者您可以通过适配器中的getView（）方法中的代码来执行此操作：

YOUR_TEXTVIEW.setTextSize(16);

Answer 4

我知道这可能有点晚了，但是我注意到每个人都在他们的答案中忘记了一些东西。方法setTextSize为它的输入接受2个参数。第二个if浮点数是你想要的数量。第一个是TypedValue常量，让我们指定数字的含义，即：像素，dip，sp等等......所以对于设置为18sp的setTextSize，它看起来像这样：

TextView yourTextView = (TextView)findViewById(R.id.yourTextViewId);
yourTextView.setTextSize(TypedValue.COMPLEX_UNIT_SP,18)

你可以在ArrayAdapter的getView中完成它。希望这可以帮助那些正在寻找答案并偶然发现这个答案的人。

Answer 5

试试这个

TextView textView = (TextView) findViewById (R.id.yourTextViewId);
textView.setTextSize(18);

如何在将列表项添加到ListView之前以编程方式设置列表项中的字体大小？

5 个答案: