小编Sor*_*ren的帖子

我只是想从我的数组中显示一个列表arrays.xml.当我尝试在模拟器中运行它时,我收到强制关闭消息.

如果我在java文件中定义数组

String[] testArray = new String[] {"one","two","three","etc"};

它有效,但是当我使用时

String[] testArray = getResources().getStringArray(R.array.testArray);

它不起作用.

这是我的Java文件:

package com.xtensivearts.episode.seven;

import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;

public class Episode7 extends ListActivity {
 String[] testArray = getResources().getStringArray(R.array.testArray);

 /** Called when the activity is first created. */
 @Override
 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  // Create an ArrayAdapter that will contain all list items
  ArrayAdapter<String> adapter;

  /* Assign the name array to that adapter and 
     also choose a simple layout for the list …

如何更改ListView元素中的字体大小？在我的main.xml文件中,我在android中尝试了几个不同的值:textSize(pt,px,sp,dp),似乎没有任何改变它.

这是我目前在main.xml中的内容:

<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/list"
    android:textColor="#ffffff"
    android:background="#000080" 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" 
    android:clickable="true" 
    android:dividerHeight="1px"
    android:layout_marginTop="5px" 
    android:textSize="8px"/>

这是我的Java:

package com.SorenWinslow.TriumphHistory;

import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;

public class TriumphHistory extends ListActivity {
    String[] HistoryList;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        ArrayAdapter<String> adapter;
        HistoryList = getResources().getStringArray(R.array.history);
        adapter = new ArrayAdapter<String> (this,android.R.layout.simple_list_item_1,HistoryList);
        setListAdapter(adapter);
    }

}

所以我从谷歌的Android网站上复制了这个教程的例子,我得到一个错误,即R.id无法解决.

这是我的Java文件

package com.TestApp.HelloWebView;

import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;

public class HelloWebView extends Activity {
    WebView mWebView;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mWebView = (WebView) findViewById(R.id.webview);
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.loadUrl("http://www.google.com");
    }

}

这是我的 res/layout/main.xml

<?xml version="1.0" encoding="utf-8"?>

<WebView android:id="@+id/webview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"/>

我需要一个示例,说明如何使用简单的html将标记的字符串显示到TextView中.我找到了"跨越fromHtml(字符串源代码)",但我不知道如何将其插入到我的java代码中.

这是我的Java:

package com.SorenWinslow.TriumphHistory;

import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;

public class TriumphHistory extends ListActivity {
    String[] HistoryList;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        ArrayAdapter<String> adapter;
        HistoryList = getResources().getStringArray(R.array.history);
        adapter = new ArrayAdapter<String> (this,R.layout.historylistlayout,HistoryList);
        setListAdapter(adapter);

    }
}

以下是历史样本:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="history">
<item><b>1883</b><br/>Some stuff happened</item>
<item><b>1884</b><br/>Some more stuff happened <i>before</i> the other stuff
</item>
<resources>

这是我的historylistlayout.xml:

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/text1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:gravity="center_vertical"
    android:textColor="#ffffff" …