问题描述
- GridView 无法显示自定义view
- package com.example.image;
import java.util.List;
import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
/**- 音效视图的适配器，将音效视图填充到GridView中
- @author lewa
*
*/
public class MyAdapter extends BaseAdapter {
private List list;
private Context context;public MyAdapter(List listContext context){
this.list = list;
this.context = context;
}@Override
public int getCount() {
// TODO Auto-generated method stub
return list.size();
}@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}@Override
public View getView(int position View convertView ViewGroup parent) {
// TODO Auto-generated method stub
ItemView itemview;
if(convertView == null){
itemview = new ItemView(context);}else{ itemview = (ItemView) convertView;}itemview.imageView.setImageResource(list.get(position).getImageId());Log.i(""ymh""Position:""+position+""----List.size() = ""+list.size());itemview.textView.setText(list.get(position).getLable());Log.i(""ymh""itemview.textView.getText().toString());itemview.setLayoutParams(new GridView.LayoutParams(8585));itemview.setPadding(8 8 8 8);return itemview;}
}
package com.example.image;import android.content.Context;import android.util.AttributeSet;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.widget.ImageView;import android.widget.RelativeLayout;import android.widget.TextView;/** * 音效图片和音效名称的组合view * @author lewa * */public class ItemView extends RelativeLayout { ImageView imageView; TextView textView; private int state = 0; public ItemView(Context context) { super(context); init(context); } public ItemView(Context context AttributeSet attrs) { super(context attrs); init(context); } public ItemView(Context context AttributeSet attrs int defStyle) { super(context attrs defStyle); init(context); } private void init(Context context){ LayoutInflater inflater = LayoutInflater.from(context); View view = inflater.inflate(R.layout.item null); imageView = (ImageView) view.findViewById(R.id.item_image); textView = (TextView) view.findViewById(R.id.item_text); } public void OnClickListener(View.OnClickListener listener){ if(state==0){ imageView.setBackgroundColor(android.graphics.Color.GREEN); state = 1; }else{ imageView.setBackgroundColor(android.graphics.Color.GRAY); } }}<?xml version=""1.0"" encoding=""utf-8""?>
android:id=""@+id/RelativeLayout1""
android:layout_width=""wrap_content""
android:layout_height=""wrap_content""
android:orientation=""vertical"" ><ImageView android:id=""@+id/item_image"" android:layout_width=""100dp"" android:layout_height=""100dp"" android:layout_alignParentLeft=""true"" android:layout_alignParentTop=""true"" android:src=""@drawable/ic_launcher"" android:padding=""5dp""/><TextView android:id=""@+id/item_text"" android:layout_width=""wrap_content"" android:layout_height=""wrap_content"" android:layout_alignLeft=""@id/item_image"" android:layout_alignRight=""@id/item_image"" android:layout_below=""@+id/item_image"" android:gravity=""center"" android:textColor=""#00ffaa"" android:text=""textview"" />
解决方案
private void init(Context context){ LayoutInflater inflater = LayoutInflater.from(context); View view = inflater.inflate(R.layout.item null); //这里不能这么处理了这么解析后，就不是你自定义new出来的布局了。 imageView = (ImageView) view.findViewById(R.id.item_image);//把VIEW去掉，用this textView = (TextView) view.findViewById(R.id.item_text);//把VIEW去掉，用this }解决方案二：
LayoutInflater inflater = LayoutInflater.from(context); View view = inflater.inflate(R.layout.item null); textView = (TextView) view.findViewById(R.id.item_text); imageView = (ImageView) view.findViewById(R.id.item_image); this.addView(view);试了下，这样可以