我做了一些研究但是找不到一个很好的例子。
当前设置:
ArrayList<String> arrCursor = new ArrayList<String>();
List<mydata> md = mydatabase.getthedata("1");
for (mydata cn1 : md) {
arrCursor.add(cn1.getTheFirst());
arrCursor.add(cn1.getTheSecond());
}
ArrayAdapter arrayAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, arrCursor);
gv.setAdapter(arrayAdapter); //the gridview
GridView布局:
<FrameLayout 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"
tools:context="com.myapp.chao">
<GridView
android:id="@+id/gvalldata"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:numColumns="auto_fit"
android:gravity="center"
android:stretchMode="columnWidth"
android:columnWidth="90dp"
android:horizontalSpacing="10dp"
android:verticalSpacing="10dp" />
</FrameLayout>
以上只显示一个简单的列表而不是自定义列表。
要启动自定义适配器进程,我已设置项目列表布局:
<?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="vertical"
android:padding="10dp">
<TextView
android:text="TextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/tvfirst"
android:layout_marginBottom="10dp"
android:gravity="center"
android:textSize="25dp" />
<TextView
android:text="TextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/tvsecond" />
</LinearLayout>
如何添加自定义适配器,该适配器将使用项目列表布局和框显示网格视图。
我在寻找:
答案 0 :(得分:2)
这应该可以使自定义适配器并将该适配器设置为gridview
gv.setAdapter(new CustomAdapter(this,prgmNameList,prgmImages));
public class CustomAdapter extends BaseAdapter{
String [] result;
Context context;
int [] imageId;
private static LayoutInflater inflater=null;
public CustomAdapter(MainActivity mainActivity, String[] prgmNameList, int[] prgmImages) {
// TODO Auto-generated constructor stub
result=prgmNameList;
context=mainActivity;
imageId=prgmImages;
inflater = ( LayoutInflater )context.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return result.length;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
public class Holder
{
TextView tv;
ImageView img;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
Holder holder=new Holder();
View rowView;
rowView = inflater.inflate(R.layout.program_list, null);
holder.tv=(TextView) rowView.findViewById(R.id.textView1);
holder.img=(ImageView) rowView.findViewById(R.id.imageView1);
holder.tv.setText(result[position]);
holder.img.setImageResource(imageId[position]);
rowView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(context, "You Clicked "+result[position], Toast.LENGTH_LONG).show();
}
});
return rowView;
}
}
答案 1 :(得分:2)
尝试在ArrayAdapter构造函数中插入您自己的自定义布局( R.layout.custom_layout ),而不是安装android(*** android。** R.layout.simple_list_item_1 *)
所以E.g ArrayAdapter arrayAdapter = new ArrayAdapter(getActivity(),R.layout.custom_layout,arrCursor);