在android中使用arrayadapter类自定义listview
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【中文标题】在android中使用arrayadapter类自定义listview【英文标题】：customised listview using arrayadapter class in android 【发布时间】：2013-05-17 03:02:54 【问题描述】：如何在 android 中使用 iphone 之类的刻度线选择行项目？iam 在 list_row.xml 中使用 imageview。当我单击列表行项目时，我会在行 imageview 中显示图像。
if(getItem(position)!=null)
img.setvisibilty(View.Visible);
elseSystem.out.println("imagenull");
我正在使用这个，但图像仅显示在最后一行。请帮助我如何使用标记图像选择项目。
public class DistanceArrayAdapter extends ArrayAdapter<Constant>
public static String category,state,miles;
public ImageView img;
private Context context;
private int current = -1;
ArrayList<Constant> dataObject;
public DistanceArrayAdapter(Context context, int textViewResourceId,
ArrayList<Constant> dataObject)
super(context, textViewResourceId, dataObject);
this.context=context;
@Override
public View getView(final int position, View convertView, ViewGroup parent)
View rowView=convertView;
if(rowView==null)
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rowView = inflater.inflate(R.layout.category_row, parent, false);
//TextView textView = (TextView) rowView.findViewById(R.id.text1);
TextView textView1 = (TextView) rowView.findViewById(R.id.text2);
//textView.setText(""+getItem(position).id);
textView1.setText(""+getItem(position).caption);
img=(ImageView)rowView.findViewById(R.id.img);
img.setVisibility(View.GONE);
if(position%2==1)
rowView.setBackgroundResource(R.color.even_list);
else
rowView.setBackgroundResource(R.color.odd_list);
rowView.setOnClickListener(new OnClickListener()
@Override
public void onClick(View v)
if(img.getVisibility()==View.GONE)
img.setVisibility(View.VISIBLE);
System.out.println("1");
if(img.getVisibility()==View.VISIBLE)
img.setVisibility(View.GONE);
System.out.println("12");
miles=getItem(position).caption;
System.out.println("miles"+miles);
);
return rowView;
【问题讨论】：
您想显示带有刻度线图像的行...？表示所有行？？ 是的。当单击行时，仅在行中显示刻度线图像，而不是所有行仅选中行 Divya 解决了你的问题吗？？ 不，我尝试了您的逻辑，但勾选标记图像仅显示在列表视图中行的最后一项中。我想在选择行项中显示图像。 @DivyaBalraj 检查下面的答案。它是 Romain Guy 谷歌开发者提供的解决方案。检查答案中的链接 【参考方案1】：取自https://groups.google.com/forum/?fromgroups#!topic/android-developers/No0LrgJ6q2M
public class MainActivity extends Activity implements AdapterView.OnItemClickListener
String[] GENRES = new String[] "Action", "Adventure", "Animation", "Children", "Comedy", "Documentary", "Drama", "Foreign", "History", "Independent", "Romance", "Sci-Fi", "Television", "Thriller";
private CheckBoxAdapter mCheckBoxAdapter;
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ListView listView = (ListView) findViewById(R.id.lv);
listView.setItemsCanFocus(false);
listView.setTextFilterEnabled(true);
listView.setOnItemClickListener(this);
mCheckBoxAdapter = new CheckBoxAdapter(this, GENRES);
listView.setAdapter(mCheckBoxAdapter);
Button b = (Button) findViewById(R.id.button1);
b.setOnClickListener(new OnClickListener()
@Override
public void onClick(View v)
// TODO Auto-generated method stub
StringBuilder result = new StringBuilder();
for (int i = 0; i < GENRES.length; i++)
if (mCheckBoxAdapter.mCheckStates.get(i) == true)
result.append(GENRES[i]);
result.append("\n");
Toast.makeText(MainActivity.this, result, 1000).show();
);
public void onItemClick(AdapterView parent, View view, int position, long id)
mCheckBoxAdapter.toggle(position);
class CheckBoxAdapter extends ArrayAdapter implements CompoundButton.OnCheckedChangeListener
LayoutInflater mInflater;
TextView tv1, tv;
CheckBox cb;
String[] gen;
private SparseBooleanArray mCheckStates;
private SparseBooleanArray mCheckStates;
CheckBoxAdapter(MainActivity context, String[] genres)
super(context, 0, genres);
mCheckStates = new SparseBooleanArray(genres.length);
mInflater = (LayoutInflater) MainActivity.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
gen = genres;
@Override
public int getCount()
// TODO Auto-generated method stub
return gen.length;
activity_main.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_
android:layout_>
<ListView
android:id="@+id/lv"
android:layout_
android:layout_
android:layout_above="@+id/button1"/>
<Button
android:id="@+id/button1"
android:layout_
android:layout_
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="Button" />
</RelativeLayout>
以及复选框的 XML 文件：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_
android:layout_ >
<TextView
android:id="@+id/textView1"
android:layout_
android:layout_
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="15dp"
android:layout_marginTop="34dp"
android:text="TextView" />
<CheckBox
android:id="@+id/checkBox1"
android:layout_
android:layout_
android:layout_alignParentRight="true"
android:layout_below="@+id/textView1"
android:layout_marginRight="22dp"
android:layout_marginTop="23dp" />
</RelativeLayout>
当您单击按钮时，会显示一条带有所选项目列表的 toast 消息。您可以根据自己的需要修改以上内容。
【讨论】：
【参考方案2】：在 ListView 上设置选择模式
//if using ListActivity or ListFragment
getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
//or
myListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
//myListView is reference to your ListView
【讨论】：
单选和多选对TS案例有什么影响？【参考方案3】：我使用数组适配器为具有复选框的列表创建了一个示例。
ListView with CheckBox using ArrayAdatpter in Android
您也可以找到示例代码。
这将被输出
这是我的代码片段
我有一个具有列表视图的 Activity
public class MainActivity extends Activity
private ListView mainListView = null;
private Planet[] planets = null;
private ArrayAdapter<Planet> listAdapter = null;
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mainListView = (ListView) findViewById(R.id.mainListView);
// When item is tapped, toggle checked properties of CheckBox and
// Planet.
mainListView
.setOnItemClickListener(new AdapterView.OnItemClickListener()
@Override
public void onItemClick(AdapterView<?> parent, View item,
int position, long id)
Planet planet = listAdapter.getItem(position);
planet.toggleChecked();
PlanetViewHolder viewHolder = (PlanetViewHolder) item
.getTag();
viewHolder.getCheckBox().setChecked(planet.isChecked());
);
// Create and populate planets.
planets = (Planet[]) getLastNonConfigurationInstance();
if (planets == null)
planets = new Planet[] new Planet("Mercury"),
new Planet("Venus"), new Planet("Earth"),
new Planet("Mars"), new Planet("Jupiter"),
new Planet("Saturn"), new Planet("Uranus"),
new Planet("Neptune"), new Planet("Ceres"),
new Planet("Pluto"), new Planet("Haumea"),
new Planet("Makemake"), new Planet("Eris") ;
ArrayList<Planet> planetList = new ArrayList<Planet>();
planetList.addAll(Arrays.asList(planets));
// Set our custom array adapter as the ListView's adapter.
listAdapter = new PlanetArrayAdapter(this, planetList);
mainListView.setAdapter(listAdapter);
public Object onRetainNonConfigurationInstance()
return planets;
这是我处理复选框内容的自定义数组适配器
public class PlanetArrayAdapter extends ArrayAdapter<Planet>
private LayoutInflater inflater;
public PlanetArrayAdapter(Context context, List<Planet> planetList)
super(context, R.layout.simplerow, R.id.rowTextView, planetList);
//Cache the LayoutInflate to avoid asking for a new one each time.
inflater = LayoutInflater.from(context);
@Override
public View getView(int position, View convertView, ViewGroup parent)
Planet planet = (Planet) this.getItem(position);
CheckBox checkBox;
TextView textView;
// Create a new row view
if (convertView == null)
convertView = inflater.inflate(R.layout.simplerow, null);
textView = (TextView) convertView.findViewById(R.id.rowTextView);
checkBox = (CheckBox) convertView.findViewById(R.id.CheckBox01);
convertView.setTag(new PlanetViewHolder(textView, checkBox));
// If CheckBox is toggled, update the planet it is tagged with.
checkBox.setOnClickListener(new View.OnClickListener()
public void onClick(View v)
CheckBox cb = (CheckBox) v;
Planet planet = (Planet) cb.getTag();
planet.setChecked(cb.isChecked());
);
// Re-use existing row view
else
PlanetViewHolder viewHolder = (PlanetViewHolder) convertView
.getTag();
checkBox = viewHolder.getCheckBox();
textView = viewHolder.getTextView();
checkBox.setTag(planet);
// Display planet data
checkBox.setChecked(planet.isChecked());
textView.setText(planet.getName());
return convertView;
请！如果您在这方面有任何问题，请告诉我。
【讨论】：
【参考方案4】：1.使gone对你的标记图像可见
2.在arrayadapter中实现view.setOnClickListener。
3. 在那检查image.getVisibility()==View.GONE 然后使image.setVisibity(View.Visible)
4.如果image.getVisiblity()==View.VISIBLE 然后让你的image.setVisibity(View.GONE)
试试这个。
【讨论】：
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