本文实例为大家分享了Android仿京东左侧分类条目效果的具体代码,供大家参考,具体内容如下
import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.LinearLayout; import android.widget.ScrollView; import android.widget.TextView; import com.frame.R; import java.util.ArrayList; import java.util.List; /** * Created by syd on 2016/10/9. */ public class TestActivity extends Activity { ScrollView sv_test; LinearLayout ll_test_contain; List<String> goodsList = new ArrayList<String>(); List<TextView> textViewList = new ArrayList<>(); List<View> viewList = new ArrayList<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.test_activity_test); initViews(); initData(); } /** * 初始化控件 */ private void initViews() { sv_test = (ScrollView) findViewById(R.id.sv_test); ll_test_contain = (LinearLayout) findViewById(R.id.ll_test_contain); } protected void initData() { goodsList.add("常用分类"); goodsList.add("潮流女装"); goodsList.add("品牌男装"); goodsList.add("内衣配饰"); goodsList.add("家用电器"); goodsList.add("手机数码"); goodsList.add("电脑办公"); goodsList.add("个护化妆"); goodsList.add("母婴频道"); goodsList.add("食物生鲜"); goodsList.add("酒水饮料"); goodsList.add("家居家纺"); goodsList.add("酒水饮料"); goodsList.add("整车车品"); goodsList.add("运动户外"); goodsList.add("图书"); goodsList.add("钟表"); goodsList.add("居家生活"); goodsList.add("珠宝饰品"); goodsList.add("音像制品"); goodsList.add("家具建材"); goodsList.add("计生情趣"); goodsList.add("营养保健"); goodsList.add("奢侈礼品"); goodsList.add("生活服务"); goodsList.add("旅游出行"); //动态生成每一个条目 for (int i = 0; i <goodsList.size() ; i++) { View view = getLayoutInflater().inflate(R.layout.test_item_scrollview,null); view.setOnClickListener(textOnClickListener); TextView tv_item_scroll = (TextView) view.findViewById(R.id.tv_item_scroll); view.setId(i); tv_item_scroll.setText(goodsList.get(i)); ll_test_contain.addView(view); viewList.add(view); textViewList.add(tv_item_scroll); } changeTextColor(0); } private View.OnClickListener textOnClickListener = new View.OnClickListener() { @Override public void onClick(View v) { changeTextColor(v.getId()); changeTextLocation(v.getId()); } }; //改变点击条目的位置,居中 private void changeTextLocation(int textPosition) { int x = (viewList.get(textPosition).getTop() - sv_test.getHeight()/2 + (viewList.get(textPosition).getHeight() / 2)); sv_test.smoothScrollTo(0, x); } //改变点击条目的颜色 private void changeTextColor(int textPosition) { for (int i = 0; i <textViewList.size() ; i++) { textViewList.get(i).setTextColor(0xFF000000); textViewList.get(i).setBackgroundColor(0x00000000); } textViewList.get(textPosition).setTextColor(0xFFFF0000); textViewList.get(textPosition).setBackgroundColor(0xFFFFFFFF); } }
代码2:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <com.frame.activity.TestScrollView android:id="@+id/sv_test" android:layout_width="80dp" android:layout_height="wrap_content"> <LinearLayout android:id="@+id/ll_test_contain" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content"> </LinearLayout> </com.frame.activity.TestScrollView> </LinearLayout>
代码3:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:gravity="center" android:paddingBottom="16dp" android:paddingTop="16dp" android:id="@+id/tv_item_scroll" android:layout_width="match_parent" android:layout_height="wrap_content" /> <ImageView android:background="#cccccc" android:layout_width="match_parent" android:layout_height="1dp" /> </LinearLayout>
效果图:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持呐喊教程。
声明:本文内容来源于网络,版权归原作者所有,内容由互联网用户自发贡献自行上传,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任。如果您发现有涉嫌版权的内容,欢迎发送邮件至:notice#nhooo.com(发邮件时,请将#更换为@)进行举报,并提供相关证据,一经查实,本站将立刻删除涉嫌侵权内容。