大佬教程收集整理的这篇文章主要介绍了android – ListView,突出显示所选项目,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
我也尝试使用布局文件自定义列表项,并在其上注册选择器,如下所述:
http://android-codes-examples.blogspot.com/2011/03/customized-listview-items-selection.html
不幸的是,它没有按预期工作.当我触摸列表项时,此方法确实改变了颜色,但是当我调用setSELEction()时没有显示突出显示.
layout / main.xml(主要布局):
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://scheR_176_11845@as.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:weightSum="4" > <ListView android:id="@+id/list_view" android:layout_width="match_parent" android:layout_height="fill_parent" android:layout_weight="1" /> <LinearLayout android:orientation="vertical" android:weightSum="2" android:layout_width="match_parent" android:layout_height="fill_parent" android:layout_weight="3"> <Button android:id="@+id/btn_prev" android:text="prev" android:layout_width="fill_parent" android:layout_height="match_parent" android:layout_weight="1" /> <Button android:id="@+id/btn_next" android:text="next" android:layout_width="fill_parent" android:layout_height="match_parent" android:layout_weight="1" /> </LinearLayout> </LinearLayout>
List.java(活动):
package com.android.list; import android.app.Activity; import android.os.bundle; import android.widget.button; import android.widget.ListView; import android.widget.TextView; import android.widget.TableRow; import android.widget.SimpleAdapter; import android.widget.SimpleAdapter.ViewBinder; import android.util.Log; import android.view.View; import android.view.View.onClickListener; import android.graphics.Point; import android.graphics.Color; import java.util.ArrayList; import java.util.HashMap; public class List extends Activity implements View.onClickListener { private ArrayList<HashMap<String,String>> mList; private Button mPrev; private Button mNext; private ListView mListView; privat@R_618_9473@ mPosition; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceStatE) { super.onCreate(savedInstanceStatE); setContentView(R.layout.main); mList = new ArrayList<HashMap<String,String>>(); HashMap<String,String> map; String[] ent = { "USA","India","England","Russia","Europe","Canada","Srilanka","Singapore","Thailand","Australia"}; for (int i=0; i<ent.length; i++) { map = new HashMap<String,String>(); map.put("content",ent[i]); mList.add(map); } SimpleAdapter adapter = new SimpleAdapter(this,mList,R.layout.list_item,new String[] {"content"},new int[] {R.id.list_text}); mListView = (ListView) findViewById(R.id.list_view); mListView.setAdapter(adapter); mPosition = 0; mListView.setSELEction(mPosition); mPrev = (Button) findViewById(R.id.btn_prev); mPrev.setOnClickListener(this); mNext = (Button) findViewById(R.id.btn_next); mNext.setOnClickListener(this); } public void onClick(View view) { if (view == mPrev && mPosition >= 0) { mListView.setSELEction(mPosition); mPosition--; } else if (view == mNext && mPosition < mList.size()) { mListView.setSELEction(mPosition); mPosition++; } } }
layout / list_item.xml(列表项布局):
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://scheR_176_11845@as.android.com/apk/res/android" xmlns:chess="http://scheR_176_11845@as.android.com/apk/res/org.pengguang.chess" android:orientation="vertical" android:BACkground="@color/lisT_Bg" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:id="@+id/list_text" android:layout_width="fill_parent" android:layout_height="fill_parent" /> </LinearLayout>
color / lisT_Bg.xml(列表项选择器):
<?xml version="1.0" encoding="utf-8"?> <SELEctor xmlns:android="http://scheR_176_11845@as.android.com/apk/res/android"> <item android:state_SELEcted="false" android:state_pressed="false" android:drawable="@color/grey" /> <item android:state_pressed="true" android:drawable="@color/blue" /> <item android:state_SELEcted="true" android:state_pressed="false" android:drawable="@color/red" /> </SELEctor>
<?xml version="1.0" encoding="UTF-8"?> <resources> <color name="blue">#0303ff</color> <color name="grey">#f7f7f7</color> <color name="red">#ff0000</color> </resources>
listView.setOnItemSELEctedListener(new OnItemSELEctedListener() { public void onItemSELEcted(AdapterView<?> arg0,View arg1,int arg2,long arg3) { // TODO Auto-generated method stub arg1.setSELEcted(true); } public void onNothingSELEcted(AdapterView<?> arg0) { // TODO Auto-generated method stub } })
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