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Android仿京东分类模块左侧分类条目效果

来源:互联网 作者:佚名 时间:2021-09-24 02:36
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; im

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鸿网互联。

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