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安卓(Android)ListView 显示图片文字

2019-12-12 06:05:34
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一.代码实现

1.  “Activity_11/src/yan/activity_11/MainActivity.java”

package yan.activity_11;  import android.os.Bundle; import android.app.Activity; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView;  public class MainActivity extends Activity {   ListView listView;   String [] titles={"标题1","标题2","标题3","标题4"};   String [] texts={"文本内容A","文本内容B","文本内容C","文本内容D"};   int [] resIds={R.drawable.icon,R.drawable.icon,R.drawable.icon,R.drawable.icon};      @Override   protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.main);     this.setTitle("BaseAdapter for ListView");     listView=(ListView)this.findViewById(R.id.MyListView);     listView.setAdapter(new ListViewAdapter(titles,texts,resIds));   }      public class ListViewAdapter extends BaseAdapter{     View [] itemViews;          public ListViewAdapter(String [] itemTitles, String [] itemTexts,         int [] itemImageRes){       itemViews = new View[itemTitles.length];              for (int i=0; i<itemViews.length; ++i){         itemViews[i] = makeItemView(itemTitles[i], itemTexts[i],             itemImageRes[i]);       }     }          public int getCount()  {       return itemViews.length;     }          public View getItem(int position)  {       return itemViews[position];     }          public long getItemId(int position) {       return position;     }          private View makeItemView(String strTitle, String strText, int resId) {       LayoutInflater inflater = (LayoutInflater)MainActivity.this           .getSystemService(Context.LAYOUT_INFLATER_SERVICE);              // 使用View的对象itemView与R.layout.item关联       View itemView = inflater.inflate(R.layout.listview_item, null);              // 通过findViewById()方法实例R.layout.item内各组件       TextView title = (TextView)itemView.findViewById(R.id.itemTitle);       title.setText(strTitle);       TextView text = (TextView)itemView.findViewById(R.id.itemText);       text.setText(strText);       ImageView image = (ImageView)itemView.findViewById(R.id.itemImage);       image.setImageResource(resId);              return itemView;     }          public View getView(int position, View convertView, ViewGroup parent) {       if (convertView == null)         return itemViews[position];       return convertView;     }   } } 

2.package yan.activity_11;

import android.os.Bundle;import android.app.Activity;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;public class MainActivity extends Activity { ListView listView; String [] titles={"标题1","标题2","标题3","标题4"}; String [] texts={"文本内容A","文本内容B","文本内容C","文本内容D"}; int [] resIds={R.drawable.icon,R.drawable.icon,R.drawable.icon,R.drawable.icon};  @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.setTitle("BaseAdapter for ListView"); listView=(ListView)this.findViewById(R.id.MyListView); listView.setAdapter(new ListViewAdapter(titles,texts,resIds)); }  public class ListViewAdapter extends BaseAdapter{ View [] itemViews;  public ListViewAdapter(String [] itemTitles, String [] itemTexts,  int [] itemImageRes){  itemViews = new View[itemTitles.length];    for (int i=0; i<itemViews.length; ++i){  itemViews[i] = makeItemView(itemTitles[i], itemTexts[i],   itemImageRes[i]);  } }  public int getCount() {  return itemViews.length; }  public View getItem(int position) {  return itemViews[position]; }  public long getItemId(int position) {  return position; }  private View makeItemView(String strTitle, String strText, int resId) {  LayoutInflater inflater = (LayoutInflater)MainActivity.this   .getSystemService(Context.LAYOUT_INFLATER_SERVICE);    // 使用View的对象itemView与R.layout.item关联  View itemView = inflater.inflate(R.layout.listview_item, null);    // 通过findViewById()方法实例R.layout.item内各组件  TextView title = (TextView)itemView.findViewById(R.id.itemTitle);  title.setText(strTitle);  TextView text = (TextView)itemView.findViewById(R.id.itemText);  text.setText(strText);  ImageView image = (ImageView)itemView.findViewById(R.id.itemImage);  image.setImageResource(resId);    return itemView; }  public View getView(int position, View convertView, ViewGroup parent) {  if (convertView == null)  return itemViews[position];  return convertView; } }}

二.“Activity_11/res/layout/main.xml”

<?xml version="1.0" encoding="utf-8"?>  <LinearLayout      android:id="@+id/LinearLayout01"      android:layout_width="fill_parent"      android:layout_height="fill_parent"      xmlns:android="http://schemas.android.com/apk/res/android">            <ListView android:layout_width="wrap_content"           android:layout_height="wrap_content"           android:id="@+id/MyListView">      </ListView>  </LinearLayout> <?xml version="1.0" encoding="utf-8"?> <LinearLayout     android:id="@+id/LinearLayout01"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     xmlns:android="http://schemas.android.com/apk/res/android">          <ListView android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:id="@+id/MyListView">     </ListView> </LinearLayout> 

三.“Activity_11/res/layout/listview_item.xml”

<?xml version="1.0" encoding="utf-8"?>   <RelativeLayout        android:layout_width="fill_parent"        xmlns:android="http://schemas.android.com/apk/res/android"        android:layout_height="wrap_content"        android:paddingBottom="4dip"        android:paddingLeft="12dip">        <ImageView           android:layout_width="wrap_content"           android:id="@+id/itemImage"         android:layout_height="fill_parent">        </ImageView>        <TextView           android:text="TextView01"           android:layout_height="wrap_content"           android:layout_width="fill_parent"           android:id="@+id/itemTitle"         android:layout_toRightOf="@+id/itemImage"         android:textSize="20dip">        </TextView>        <TextView           android:text="TextView02"           android:layout_height="wrap_content"           android:layout_width="fill_parent"           android:id="@+id/itemText"         android:layout_toRightOf="@+id/itemImage"         android:layout_below="@+id/itemTitle">        </TextView>   </RelativeLayout> 
<?xml version="1.0" encoding="utf-8"?>  <RelativeLayout       android:layout_width="fill_parent"       xmlns:android="http://schemas.android.com/apk/res/android"       android:layout_height="wrap_content"       android:paddingBottom="4dip"       android:paddingLeft="12dip">       <ImageView          android:layout_width="wrap_content"          android:id="@+id/itemImage"        android:layout_height="fill_parent">       </ImageView>       <TextView          android:text="TextView01"          android:layout_height="wrap_content"          android:layout_width="fill_parent"          android:id="@+id/itemTitle"        android:layout_toRightOf="@+id/itemImage"        android:textSize="20dip">       </TextView>       <TextView          android:text="TextView02"          android:layout_height="wrap_content"          android:layout_width="fill_parent"          android:id="@+id/itemText"        android:layout_toRightOf="@+id/itemImage"        android:layout_below="@+id/itemTitle">       </TextView>  </RelativeLayout>
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