多条目加载数据
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清单文件:
<uses-permission android:name="android.permission.INTERNET" /><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/><uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
.gradle
compile 'com.zftlive.android.library:feature-android-imageloader:1.0.0'
dependencies { compile fileTree(include: ['*.jar'], dir: 'libs') androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { exclude group: 'com.android.support', module: 'support-annotations' }) compile 'com.android.support:appcompat-v7:26+' compile 'com.android.support.constraint:constraint-layout:1.0.2' testCompile 'junit:junit:4.12' compile 'com.jakewharton:butterknife:8.8.1' annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1' compile files('libs/universal-image-loader-1.9.5.jar')}
布局文件:
主布局Listview 本代码有两个子布局
/** * listview多条目加载,使用项目使用imageloader,butterknife; */public class MainActivity extends AppCompatActivity { @BindView(R.id.lv) ListView lv; private ArrayList<Goods> goodsList; String imgUrl = "http://image.tianjimedia.com/uploadImages/2012/067/N80N0GUA36N0.jpg"; private ImageView img; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //使用butterKnife来注解控件; ButterKnife.bind(this); initData(); } private void initData() { goodsList = new ArrayList<Goods>(); goodsList.add(new Goods("商品1", "21", 0)); goodsList.add(new Goods("商品3", "23", 0)); goodsList.add(new Goods("商品4", "24", R.drawable.hu, 1)); goodsList.add(new Goods("商品2", "22", R.drawable.hu, 1)); goodsList.add(new Goods("商品5", "25", 0)); goodsList.add(new Goods("商品6", "26", R.drawable.hu, 1)); goodsList.add(new Goods("商品21", "21", 0)); goodsList.add(new Goods("商品5", "25", 0)); goodsList.add(new Goods("商品22", "22", R.drawable.hu, 1)); goodsList.add(new Goods("商品23", "23", 0)); goodsList.add(new Goods("商品24", "24", R.drawable.hu, 1)); goodsList.add(new Goods("商品25", "25", 0)); goodsList.add(new Goods("商品26", "26", R.drawable.hu, 1)); goodsList.add(new Goods("商品31", "21", 0)); goodsList.add(new Goods("商品32", "22", R.drawable.hu, 1)); goodsList.add(new Goods("商品34", "24", R.drawable.hu, 1)); goodsList.add(new Goods("商品36", "26", R.drawable.hu, 1)); goodsList.add(new Goods("商品33", "23", 0)); goodsList.add(new Goods("商品35", "25", 0)); //把数据配置给listview lv.setAdapter(new MBaseAdapter()); } class MBaseAdapter extends BaseAdapter { private final int type1 = 0; private final int type2 = 1; @Override public int getCount() { return goodsList.size(); } @Override public Object getItem(int i) { return goodsList.get(i); } @Override public long getItemId(int i) { return i; } @Override public View getView(int i, View convertView, ViewGroup viewGroup) { int typeId = goodsList.get(i).getTypeId(); switch (typeId) { case type1: Holder1 holder1 = null; if (convertView == null) { holder1 = new Holder1(); convertView = View.inflate(MainActivity.this, R.layout.lv_item_1, null); holder1.textView1 = convertView.findViewById(R.id.textView1); holder1.textView2 = convertView.findViewById(R.id.textView2); convertView.setTag(holder1); } else { holder1 = (Holder1) convertView.getTag(); } holder1.textView1.setText(goodsList.get(i).getName()); holder1.textView2.setText(goodsList.get(i).getPrice()); break; case type2: Holder2 holder2 = null; if (convertView == null) { holder2 = new Holder2(); convertView = View.inflate(MainActivity.this, R.layout.lv_item_2, null); holder2.textView1 = convertView.findViewById(R.id.textView1); holder2.textView2 = convertView.findViewById(R.id.textView2); holder2.imageView1 = convertView.findViewById(R.id.imageView1); convertView.setTag(holder2); } else { holder2 = (Holder2) convertView.getTag(); } holder2.textView1.setText(goodsList.get(i).getName()); holder2.textView2.setText(goodsList.get(i).getPrice());// holder2.imageView1.setImageResource(R.drawable.hu); ImageLoader.getInstance().displayImage(imgUrl, holder2.imageView1); break; } return convertView; } //返回条目有多少种类型 @Override public int getViewTypeCount() { return 2; } //返回条目的类型 @Override public int getItemViewType(int position) { return goodsList.get(position).getTypeId(); } } class Holder1 { TextView textView1, textView2; } class Holder2 { TextView textView1, textView2; ImageView imageView1; }}
public class MApp extends Application { @Override public void onCreate() { super.onCreate(); ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(this).build(); ImageLoader.getInstance().init(config); }}
//另有一个普通Bean类
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