如何将ArrayList数据设置到ListView中？

发布于 2024-12-02 18:21:37 字数 339 浏览 0 评论 0原文

我在 ArrayList 中有数据，例如：

[android_metadata, test1, test5, test4, test2, test3, test10, test1002, abcd, zxy, re, test1001, testing, test21, test12]

现在我想将这些数据设置到 android 中的 ListView 中。请在这件事上帮助我。我见过很多例子。但我是否必须实现 getter setter 类来存储数据并将其显示到 ListView 中？我只需将数据列表上方显示到列表视图中并设置其 ClickEvent。请给我一些代码来完成这样的实现。

原文

I have Data in ArrayList like:

[android_metadata, test1, test5, test4, test2, test3, test10, test1002, abcd, zxy, re, test1001, testing, test21, test12]

Now i want to Set such data in to the ListView in android.
Please help me in this matter.
I have seen many Example. but should i have to implement getter setter class to store data and display it into ListView ?
I have just to show Just above List of data in to List View and set its ClickEvent.
Please Give me Some code to done such implement.

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温柔戏命师 2024-12-09 18:21:37

试试这个代码

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class Start extends Activity {

private String[] lv_arr = {};

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


    // Get a handle to the list view
    ListView lv = (ListView) findViewById(R.id.ListView01);

    // Convert ArrayList to array
    lv_arr = (String[]) arrayList.toArray();
    lv.setAdapter(new ArrayAdapter<String>(Start.this,
            android.R.layout.simple_list_item_1, lv_arr));

}


}

try this code

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class Start extends Activity {

private String[] lv_arr = {};

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


    // Get a handle to the list view
    ListView lv = (ListView) findViewById(R.id.ListView01);

    // Convert ArrayList to array
    lv_arr = (String[]) arrayList.toArray();
    lv.setAdapter(new ArrayAdapter<String>(Start.this,
            android.R.layout.simple_list_item_1, lv_arr));

}


}

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随波逐流 2024-12-09 18:21:37

这是例子

ArrayList yourlist = new ArrayList();

ArrayAdapter adapter = new ArrayAdapter<String>(context,android.R.layout.simple_list_item_1, yourlist);
yourlistview.setAdapter(adapter);

This is the example

ArrayList yourlist = new ArrayList();

ArrayAdapter adapter = new ArrayAdapter<String>(context,android.R.layout.simple_list_item_1, yourlist);
yourlistview.setAdapter(adapter);

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疯到世界奔溃 2024-12-09 18:21:37

作为对 Balaji.K 答案的补充，您不需要 String[] 数组。
您可以直接使用 ArrayAdapter 将 ArrayList 附加到 ListView：

private ArrayList<String> arrayList = Arrays.asList("android_metadata", "test1", "test5", "test4", /*...*/ "test21", "test12");

ListView lv = (ListView) findViewById(R.id.list_view);
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, arrayList));

As a complement to Balaji.K's answer, you don't need the String[] array.
You can attach an ArrayList to a ListView by using an ArrayAdapter directly:

private ArrayList<String> arrayList = Arrays.asList("android_metadata", "test1", "test5", "test4", /*...*/ "test21", "test12");

ListView lv = (ListView) findViewById(R.id.list_view);
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, arrayList));

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