eclipse Android：如何在 ListView 中更改文本大小变大？

Android: How to Change to Text Size in ListView become bigger?

提问by Sean Tan

I am blurred with the situation below where I create a LinearLayout to display contact list from my phone. But, I can't figout out where I can actually set the text inside LinearLayout to become bigger!Please help, thanks!!!!

我对下面的情况感到模糊，我创建了一个 LinearLayout 来显示我手机中的联系人列表。但是，我不知道在哪里可以实际设置 LinearLayout 中的文本变大！请帮忙，谢谢！！！！

<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:layout_width="wrap_content"
              android:id="@+id/contactList"
              android:layout_height="0dp"
              android:padding="10dp"
              android:textSize="200sp"
              android:layout_weight="10"/>
    <CheckBox android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/showInvisible"
              android:text="@string/showInvisible"/>
    <Button android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:id="@+id/addContactButton"
            android:text="@string/addContactButtonLabel"/>
</LinearLayout>

The contactmanager.xml as below:

contactmanager.xml 如下：

package com.example.android.contactmanager;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public final class ContactManager extends Activity
{

    public static final String TAG = "ContactManager";

    private Button mAddAccountButton;
    private ListView mContactList;
    private boolean mShowInvisible;
    //public BooleanObservable ShowInvisible = new BooleanObservable(false);
    private CheckBox mShowInvisibleControl;

    /**
     * Called when the activity is first created. Responsible for initializing the UI.
     */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        Log.v(TAG, "Activity State: onCreate()");
        super.onCreate(savedInstanceState);
        setContentView(R.layout.contact_manager);

        ArrayAdapter<String> filesAdapter = new ArrayAdapter<String>(this, 
        R.layout.simplest_list_item_1, topFilesArray);
        filesList.setDivider(null);

        // Obtain handles to UI objects
        mAddAccountButton = (Button) findViewById(R.id.addContactButton);
        mContactList = (ListView) findViewById(R.id.contactList);
        mShowInvisibleControl = (CheckBox) findViewById(R.id.showInvisible);

        // Initialise class properties
        mShowInvisible = false;
        mShowInvisibleControl.setChecked(mShowInvisible);

        // Register handler for UI elements
        mAddAccountButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Log.d(TAG, "mAddAccountButton clicked");
                launchContactAdder();
            }
        });
        mShowInvisibleControl.setOnCheckedChangeListener(new OnCheckedChangeListener() {
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                Log.d(TAG, "mShowInvisibleControl changed: " + isChecked);
                mShowInvisible = isChecked;
                populateContactList();
            }
        });

        // Populate the contact list
        populateContactList();
    }

    /**
     * Populate the contact list based on account currently selected in the account spinner.
     */
    private void populateContactList() {
        // Build adapter with contact entries
        Cursor cursor = getContacts();
        String[] fields = new String[] {
                ContactsContract.Data.DISPLAY_NAME
        };
        SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.contact_entry, cursor,
                fields, new int[] {R.id.contactEntryText});
        mContactList.setAdapter(adapter);
    }

    /**
     * Obtains the contact list for the currently selected account.
     *
     * @return A cursor for for accessing the contact list.
     */
    private Cursor getContacts()
    {
        // Run query
        Uri uri = ContactsContract.Contacts.CONTENT_URI;
        String[] projection = new String[] {
                ContactsContract.Contacts._ID,
                ContactsContract.Contacts.DISPLAY_NAME
        };
        String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '" + (mShowInvisible ? "0" : "1") + "'";
        //String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '" + (mShowInvisible.get() ? "0" : "1") + "'";
        String[] selectionArgs = null;
        String sortOrder = ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC";

        return this.managedQuery(uri, projection, selection, selectionArgs, sortOrder);
    }

    /**
     * Launches the ContactAdder activity to add a new contact to the selected account.
     */
    protected void launchContactAdder() {
        Intent i = new Intent(this, ContactAdder.class);
        startActivity(i);
    }


}

The contact_entry.xml

contact_entry.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2009 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content">
    <TextView android:text="@+id/contactEntryText"
              android:id="@+id/contactEntryText"
              android:layout_width="fill_parent"
              android:layout_height="wrap_content"/>
</LinearLayout>

采纳答案by Dipak Keshariya

Set this property android:textSize="10dip"of Textview into contact_entry.xml, it will solve your problem.

把android:textSize="10dip"Textview的这个属性设置成contact_entry.xml，就可以解决你的问题。

回答by android.fryo

it is always better to set the size of text in sp (Sp is scaled independently with respect to the normal font size of the device. ) or you can use android:textAppearance="?android:attr/textAppearanceLarge

最好在 sp 中设置文本的大小（Sp 相对于设备的正常字体大小独立缩放。）或者您可以使用 android:textAppearance="?android:attr/textAppearanceLarge