SampleListView

package com.dream.myapplication;

import android.os.Bundle;import android.support.design.widget.FloatingActionButton;import android.support.design.widget.Snackbar;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.Toolbar;import android.view.View;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.SimpleAdapter;

import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;

public class MainActivity extends AppCompatActivity {    private List<Map<String, Object>>datalist;

    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);        setSupportActionBar(toolbar);        ListView listView = (ListView)findViewById(R.id.list_view);       // String[] arr_data = {"嘀嘀嘀","嘀嘀嘀","嘀嘀嘀","嘀嘀嘀","嘀嘀嘀","嘀嘀嘀","嘀嘀嘀"};       // ArrayAdapter arrayAdapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1,arr_data);        datalist = new  ArrayList<Map<String, Object>>();        //ArrayList<Map<String, Object>> arrayList = new ArrayList<Map<String, Object>>();        SimpleAdapter simpleAdapter = new SimpleAdapter(this,getData(),R.layout.item,new String[]{"pic","text"},new int[]{R.id.pic,R.id.text});       // listView.setAdapter(arrayAdapter);        listView.setAdapter(simpleAdapter);

    }

    private List<Map<String, Object>> getData(){        for (int i=0;i<20;i++){            Map<String, Object> map = new HashMap<String, Object>();            map.put("pic",R.drawable.dee);            map.put("text","嘿嘿嘿"+i);            datalist.add(map);

             }

        return datalist;

    }}
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="horizontal">    <ImageView        android:id="@+id/pic"        android:layout_marginLeft="15dp"        android:layout_width="30dp"        android:layout_height="30dp"        android:src="@drawable/dee"/>    <TextView        android:id="@+id/text"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:textSize="20sp"        android:textColor="#009900"        android:text="嘀嘀嘀"/>

</LinearLayout>
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    app:layout_behavior="@string/appbar_scrolling_view_behavior"    android:orientation="vertical"    tools:context="com.dream.myapplication.MainActivity"    tools:showIn="@layout/activity_main">

    <ListView        android:id="@+id/list_view"        android:layout_width="match_parent"        android:layout_height="wrap_content">    </ListView>

</LinearLayout>


 
时间: 2024-10-13 00:00:59

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