我有一个ListView使用自定义cursoradapter来填充ListView.
row.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" > <LinearLayout android:orientation="vertical" android:layout_width="0dip" android:layout_weight="1" android:layout_height="fill_parent"> <TextView android:id="@+id/title" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true" android:gravity="center_vertical" android:ellipsize="marquee" android:textSize="24dp" /> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/artist" android:singleLine="true" android:ellipsize="marquee" android:textSize="14dp" /> </LinearLayout> <ImageView android:id="@+id/currentplaying" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginLeft="1dip" android:src="@android:drawable/ic_media_play" android:contentDescription="@string/now_playing" android:visibility="gone" /> </LinearLayout>
如您所见,ImageView的可见性消失了.我想成功
对于一个特定行可见.这是我尝试的代码,但事实并非如此
工作…
View view = getListView().getAdapter().getView(0,null,null); ImageView iv = (ImageView)view.findViewById(R.id.currentplaying); iv.setVisibility(ImageView.VISIBLE);
提前致谢.
@Override public View getView(int position,View convertView,ViewGroup parent) { ViewHolder holder; if(convertView==null) { holder = new ViewHolder(); convertView = inflater.inflate(R.layout.yourlayout,null); holder.imgViewLogo = (ImageView) convertView.findViewById(R.id.imgViewLogo); convertView.setTag(holder); } else { holder=(ViewHolder)convertView.getTag(); } if(position==0) { holder.imgViewLogo.setVisiblity(View.VISIBLE); } return convertView; }
编辑:
我搞定了.我用它来启动ListView活动.
intent.putExtra("id",c.getInt(c.getColumnIndex(DatabaseHelper._ID))); startActivity(intent);
在ListView活动中,
currentplayingid = getIntent().getExtras().getInt("id");
然后我在bindview()中添加了这个
ImageView imgview = (ImageView)view.findViewById(R.id.currentplaying); int id = c.getInt(c.getColumnIndex(DatabaseHelper._ID)); if (id == SongsListActivity.this.currentplayingid) imgview.setVisibility(View.VISIBLE); else imgview.setVisibility(View.GONE);
解决方法
我搞定了.我用它来启动列表视图活动.
intent.putExtra("id",c.getInt(c.getColumnIndex(DatabaseHelper._ID))); startActivity(intent);
在listview活动中,
currentplayingid = getIntent().getExtras().getInt("id");
然后我在bindview()中添加了这个
ImageView imgview = (ImageView)view.findViewById(R.id.currentplaying); int id = c.getInt(c.getColumnIndex(DatabaseHelper._ID)); if ( id == SongsListActivity.this.currentplayingid ) imgview.setVisibility(View.VISIBLE); else imgview.setVisibility(View.GONE);
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