正如标题所说，我的 setOnItemClickListener 不起作用。我浏览了到目前为止在 SO 上看到的所有内容，但找不到我的错误。
这是代码：
这是有问题的班级。它不是主类，而是从一个意图调用的：
package...;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListAdapter;
import android.widget.ListView;
public class GroupActivity extends Activity {
String group_id = "";
Context context;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_group);
context = this;
Intent intent = getIntent();
group_id = intent.getStringExtra("group_id");
Log.i("bla", "Launched GroupActivity for group_id " + group_id);
final SubAdapter adapter = new SubAdapter(this, group_id);
ListView lv = (ListView) findViewById(R.id.listView1);
lv.setClickable(true);
lv.setAdapter(adapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> av, View v, int idx, long lidx) {
Log.i("print here", "blaa " + idx);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
这是 SubAdapter 类：
package...;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.text.format.DateUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class SubAdapter extends BaseAdapter {
private static final int thumb_width = 128;
private static final int thumb_hight = 128;
private static Bitmap default_thumb = null;
private static LayoutInflater inflater = null;
private final String group_id_;
private final Activity activity;
private final SubAdapter t = this;
// used to keep selected position in ListView
private int selectedPos = -1; // init value for not-selected
public SubAdapter(Activity a, final String group_id) {
Drawable d = a.getResources().getDrawable(R.drawable.ic_contact_picture);
default_thumb = ((BitmapDrawable) d).getBitmap();
activity = a;
group_id_ = group_id;
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public View getView(int idx, View convertView, ViewGroup parent) {
Log.i("bla2", "getting view with index " + idx);
View vi = convertView;
if (convertView == null) {
vi = inflater.inflate(R.layout.sub_list_item, null);
vi.setClickable(true);
}
TextView tv1 = (TextView)vi.findViewById(R.id.textView1);
TextView tv2 = (TextView)vi.findViewById(R.id.textView2);
ImageView img = (ImageView)vi.findViewById(R.id.imageView1);
tv1.setText("first name" + " " + "last name");
tv2.setText("some date");
// put thumbnail
Bitmap thumb = default_thumb;
img.setImageBitmap(thumb);
Log.i("bla3", "index is " + idx + "selected index is " + selectedPos);
if(selectedPos == idx){
Log.i("bla4", "inside if");
}
return vi;
}
public void setSelectedPosition(int pos){
selectedPos = pos;
// inform the view of this change
notifyDataSetChanged();
}
@Override
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
}
}
这是活动组 xml：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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"
tools:context=".GroupActivity" >
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:focusableInTouchMode="false"
android:focusable="false" >
</ListView>
</RelativeLayout>
这是 sub_list_item xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusable="false"
android:focusableInTouchMode="false">
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_margin="6dp"
android:src="@drawable/ic_launcher" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_margin="6dp"
android:layout_toLeftOf="@+id/toggleButton1"
android:layout_toRightOf="@+id/imageView1"
android:text="some text"
android:textAppearance="?android:attr/textAppearance" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_below="@+id/textView1"
android:layout_toLeftOf="@+id/toggleButton1"
android:text="more text"
android:textAppearance="?android:attr/textAppearance" />
<ToggleButton
android:id="@+id/toggleButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_margin="6dp"
android:text="present" />
</RelativeLayout>
除了点击监听器，其他一切似乎都有效。SubAdapter 正确打开并填充列表。基本上我正在寻找的是得到消息“Log.i(“print here”,“blaa” + idx);" 打印 - 这是来自 ListView 的 setOnItemClickListener 的日志（见上图）
如果有其他相关代码丢失，请告诉我谢谢！！！