我有一个带有两个textview的自定义列表视图。如果我使用模拟器d-pad，一切正常，行被选中，但如果我点击模拟器上的项目（或尝试在手机上选择），则不会选择任何内容。
addresslist.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="horizontal" android:paddingBottom="6dip"
android:paddingTop="4dip">
<TextView android:id="@+id/DENUMIRE_CELL"
android:layout_width="50dp" android:layout_height="wrap_content"
android:layout_weight="1.03" />
<TextView android:id="@+id/ADRESA_CELL" android:layout_width="50dp"
android:layout_height="wrap_content" android:layout_weight="0.84" />
</LinearLayout>
clienti.xml:
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:orientation="vertical">
<TableRow android:id="@+id/tableRow1" android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout android:orientation="horizontal"
android:focusable="true" android:focusableInTouchMode="true">
<EditText android:id="@+id/editTextCauta"
android:layout_width="100dp" android:layout_height="wrap_content"
android:layout_weight="0.04" />
<Button android:id="@+id/buttonCauta" android:layout_width="70dp"
android:layout_height="wrap_content" android:text="Cauta" />
</LinearLayout>
</TableRow>
<TableRow android:id="@+id/tableRowHeader"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:background="#000000">
<LinearLayout android:orientation="horizontal">
<TextView android:id="@+id/textView1" android:layout_width="159dp"
android:layout_height="wrap_content" android:text="Denumire"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#BBBBBB" android:textSize="15sp" />
<TextView android:id="@+id/textView2" android:layout_width="159dp"
android:layout_height="wrap_content" android:text="Adresa"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#BBBBBB" android:textSize="15sp" />
</LinearLayout>
</TableRow>
<TableRow android:id="@+id/tableRow2" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:baselineAligned="false">
<ListView android:id="@+id/adresslist" android:layout_width="wrap_content"
android:choiceMode="singleChoice" android:layout_height="wrap_content"
android:scrollbars="horizontal|vertical" />
</TableRow>
</TableLayout>
代码：
public void adresalistBind()
{
listview = (ListView) findViewById(R.id.adresslist);
ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();
ArrayList<ClientClass> clientlist=new ArrayList<ClientClass>();
ClientClass.setClientContextForDB(this);
clientlist=ClientClass.ClientiGet();
listaAll=clientlist;
HashMap<String, String> map;
for(int i=0;i<clientlist.size();i++)
{
map = new HashMap<String, String>();
map.put("denumire", clientlist.get(i).getDenumire());
map.put("adresa", clientlist.get(i).getAdresa());
map.put("clientid", String.valueOf(clientlist.get(i).getClientID()));
mylist.add(map);
}
SimpleAdapter mAdapter = new SimpleAdapter(this, mylist, R.layout.addresslist,
new String[] {"denumire", "adresa"}, new int[] {R.id.DENUMIRE_CELL, R.id.ADRESA_CELL});
listview.setAdapter(mAdapter);
listview.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
listview.setSelection(1);
listview.setOnItemSelectedListener(new OnItemSelectedListener()
{
public void onItemSelected(AdapterView<?> adaptview, View clickedview, int position,
long id)
{
//adaptview.setSelected(true);
listview.setSelection(position);
}
public void onNothingSelected(AdapterView<?> arg0)
{
}
});
listview.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> adaptview, View arg1,
int position, long arg3)
{
//adaptview.setSelected(true);
// View rowview = (View) adaptview.getChildAt(position);
// rowview.setSelected(true);
listview.setSelection(position);
//Toast.makeText(ClientiForm.this, (String) listview.getItemAtPosition(position).toString(), 10000).show();
}
});
listview.setOnItemLongClickListener(new OnItemLongClickListener()
{
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int position, long arg3)
{
listview.setSelection(position);
openOptionsMenu();
Toast.makeText(ClientiForm.this, (String) listview.getItemAtPosition(position).toString(), 10000).show();
return false;
}
});
}
答案 0 :(得分：6)
为了使项目“可检查”，项目的顶视图应实现Checkable界面。只有在这种情况下，您才会在ListView内获得“已检查”/“未选中”状态。
请注意，“可选择”和“可检查”项目具有不同的含义。在您的情况下，您的意思是“可检查”项目。不是“可选择的”。您需要“检查”您的商品，但ListView确保在CHOICE_MODE_SINGLE中一次最多检查一件商品。 “selected”项目是当前活动的项目（这主要用于可访问性需求）。
您只需在列表项的布局中用LinearLayout视图替换CheckBox即可验证我的说法。 ListView应自动开始处理“已检查”状态。
如果您想使用LinearLayout并且仍然能够支持“已选中”/“未选中”状态，则需要实现扩展LinearLayout并实现Checkable接口的自定义布局。
以下是我的此实现版本：
public class CheckableLinearLayout extends LinearLayout implements Checkable {
private boolean mChecked;
private static final int[] CHECKED_STATE_SET = {
android.R.attr.state_checked
};
public CheckableLinearLayout(Context context) {
this(context, null);
init();
}
public CheckableLinearLayout(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
private void init() {
setClickable(true);
}
/**********************/
/** Handle clicks **/
/**********************/
@Override
public boolean performClick() {
toggle();
return super.performClick();
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return onTouchEvent(ev);
}
/**************************/
/** Checkable **/
/**************************/
public void toggle() {
setChecked(!mChecked);
}
public boolean isChecked() {
return mChecked;
}
public void setChecked(boolean checked) {
if (mChecked != checked) {
mChecked = checked;
refreshDrawableState();
setCheckedRecursive(this, checked);
}
}
private void setCheckedRecursive(ViewGroup parent, boolean checked) {
int count = parent.getChildCount();
for(int i = 0; i < count; i++ ) {
View v = parent.getChildAt(i);
if(v instanceof Checkable) {
((Checkable) v).setChecked(checked);
}
if(v instanceof ViewGroup) {
setCheckedRecursive((ViewGroup)v, checked);
}
}
}
/**************************/
/** Drawable States **/
/**************************/
@Override
protected int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
if (isChecked()) {
mergeDrawableStates(drawableState, CHECKED_STATE_SET);
}
return drawableState;
}
@Override
protected void drawableStateChanged() {
super.drawableStateChanged();
Drawable drawable = getBackground();
if (drawable != null) {
int[] myDrawableState = getDrawableState();
drawable.setState(myDrawableState);
invalidate();
}
}
/**************************/
/** State persistency **/
/**************************/
static class SavedState extends BaseSavedState {
boolean checked;
SavedState(Parcelable superState) {
super(superState);
}
private SavedState(Parcel in) {
super(in);
checked = (Boolean)in.readValue(null);
}
@Override
public void writeToParcel(Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeValue(checked);
}
@Override
public String toString() {
return "CheckableLinearLayout.SavedState{"
+ Integer.toHexString(System.identityHashCode(this))
+ " checked=" + checked + "}";
}
public static final Parcelable.Creator<SavedState> CREATOR
= new Parcelable.Creator<SavedState>() {
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
}
@Override
public Parcelable onSaveInstanceState() {
// Force our ancestor class to save its state
Parcelable superState = super.onSaveInstanceState();
SavedState ss = new SavedState(superState);
ss.checked = isChecked();
return ss;
}
@Override
public void onRestoreInstanceState(Parcelable state) {
SavedState ss = (SavedState) state;
super.onRestoreInstanceState(ss.getSuperState());
setChecked(ss.checked);
requestLayout();
}
}
您的项目布局应如下所示：
<com.your.pkg.CheckableLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/checkable_item">
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
</com.your.pkg.CheckableLinearLayout>
请注意“drawable / checakble_item”。它应该处理不同的状态。在我的例子中，它看起来像：
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="true" android:drawable="@drawable/item_pressed" />
<item android:state_checked="true" android:drawable="@drawable/item_checked"/>
<item android:drawable="@drawable/item_unchecked" />
</selector>
drawable/item_pressed，drawable/item_checked和drawable/item_unchecked是我的自定义绘图。
最后一个注释：在Adapter getView()中，您必须致电view.setClickable(false);，以便ListView而不是{{1}处理可检查状态}}
答案 1 :(得分：0)
您可以在this link找到解决方案。您必须以编程方式更改布局的外观。