实现可以多选的ListView列表

本文介绍了一个具体的Android应用示例,展示了如何使用ListView组件进行数据展示,并实现了多种交互功能,包括单选、多选及点击事件。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

public class TestActivity extends Activity {
/**代码中写布局的View*/
private LinearLayout mParentLinearLayout;
/**标题TextView*/
private TextView mTitleTv;
/**展示数据的ListView*/
private ListView mListView;
/**自定义的数据*/
private String[] mStrArray;
/**ListView的数据适配器*/
private ArrayAdapter<String> arrayAdapter;
/**定义一StringBuffer*/
private StringBuffer mBuffer;


@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initViews();
initListeners();
}

private void initListeners() {
mListView.setOnItemSelectedListener(mLvOnItemSelectedListener);
mListView.setOnItemClickListener(mLvOnItemClickListener);
}

private void initViews() {
/**初始化mParentLinearLayout*/
mParentLinearLayout = new LinearLayout(TestActivity.this);
/**设置布局宽高*/
LinearLayout.LayoutParams mLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
/**布局排列方式*/
mParentLinearLayout.setOrientation(LinearLayout.VERTICAL);
/**背景*/
mParentLinearLayout.setBackgroundColor(Color.parseColor("#F0F0F0"));


mTitleTv = new TextView(TestActivity.this);
mTitleTv.setLayoutParams(mLayoutParams);
mTitleTv.setText("请选择列表数据!");
mTitleTv.setTextColor(Color.BLACK);
/**往布局中添加TextView*/
mParentLinearLayout.addView(mTitleTv);


mListView = new ListView(TestActivity.this);
mListView.setLayoutParams(mLayoutParams);
mListView.setBackgroundColor(Color.LTGRAY);
mBuffer = new StringBuffer();
mStrArray = new String[] { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
arrayAdapter = new ArrayAdapter<String>(TestActivity.this, android.R.layout.simple_list_item_multiple_choice, mStrArray);
/**设置ListView的选择模式*/
mListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
mListView.setAdapter(arrayAdapter);
/**往布局中添加ListView*/
mParentLinearLayout.addView(mListView);
setContentView(mParentLinearLayout);
}


private OnItemSelectedListener mLvOnItemSelectedListener = new OnItemSelectedListener() {


public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
/**选中后的操作*/
mBuffer.append(arg0.getItemAtPosition(arg2).toString() + "-");
mTitleTv.setText(mBuffer.toString());
}

public void onNothingSelected(AdapterView<?> arg0) {

}
};
OnItemClickListener mLvOnItemClickListener = new OnItemClickListener() {

public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
/**点击后的操作*/
mBuffer.append(arg0.getItemAtPosition(arg2).toString() + "");
mTitleTv.setText(mBuffer.toString());
/**还可以判断,如果已经选中,点击的话应该表示不选中*/
}
};
}
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值