Question

或如何将图像与引号一起插入？我的想法是创建一个填充R.drawable.image的int数组，因为arrayadapter类型是字符串，所以它不起作用。这是代码：

TitleListActivity.java

package course.examples.quoteviewer;

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class TitlesListActivity extends ListActivity {

public static String[] mTitleArray;
public static String[] mQuoteArray;

public static final String INDEX = "index";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mTitleArray = getResources().getStringArray(R.array.Titles);
    mQuoteArray = getResources().getStringArray(R.array.Quotes);
    setListAdapter(new ArrayAdapter<String>(TitlesListActivity.this,
            R.layout.list_text_item_layout, TitlesListActivity.mTitleArray));
}

@Override
public void onListItemClick(ListView l, View v, int pos, long id) {
    Intent showItemIntent = new Intent(TitlesListActivity.this,
            QuoteListActivity.class);
    showItemIntent.putExtra(INDEX, mQuoteArray[pos]);
    startActivity(showItemIntent);
}

}

QutoeListActivity.java

package course.examples.quoteviewer;

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

public class QuoteListActivity extends ListActivity {

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    Intent intent = getIntent();
    String quote = intent.getStringExtra(TitlesListActivity.INDEX);

    if (null != quote) {
        setListAdapter(new ArrayAdapter<String>(QuoteListActivity.this,
                R.layout.list_text_item_layout, new String[] { quote }));
    }
}
}

list_text_item_layout.xml

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:textSize="32sp" >
</TextView>

的strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">FragmentQuoteViewerWithActivity</string>
<string-array name="Titles">
    <item>The Tragedy of Hamlet, Prince of Denmark</item>
    <item>King Lear</item>
    <item>Julius Caesar</item>
</string-array>
<string-array name="Quotes">
    <item>Now cracks a noble heart. Good-night, sweet prince; And flights of angels sing thee   to thy rest.</item>
    <item>As flies to wanton boys, are we to the gods; they kill us for their sport.</item>
    <item>There is a tide in the affairs of men, which taken at the flood, leads on to fortune.  Omitted, all the voyage of their life is bound in shallows and in miseries.</item>
</string-array>
</resources>

Answer 1

这超出了内置ArrayAdapter的功能，我担心。您需要创建一个自定义适配器来扩展ArrayAdapter并同时使用字符串和整数。它不必扩展ArrayAdapter，但这会使事情变得更容易。

在自定义适配器中，getView（）方法应为每个列表项扩展自定义布局XML文件，此布局文件将包含显示图像和引用的视图。在这里，您将使用传递给适配器的数据填充ImageView和TextView。

Vogella有一个令人难以置信的资源来编写自定义列表适配器，在这里：http://www.vogella.com/tutorials/AndroidListView/article.html

Answer 2

看起来您可能想要创建自己的ArrayAdapter，其类型为包含图像资源（int）和引用（String）的简单类。

public class QuoteListAdapter extends ArrayAdapater<QuotedImage> {
    // check link for examples
}

static class QuotedImage {
    int imageResource;
    String quote;
}

查看here示例。

如何在字符串类型arrayadapter中放入int类型数组？

2 个答案: