改写ListView 实现加载本地图片 非 id
2012-04-09 09:59
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//主Activity
import java.io.FileInputStream; import java.io.FileNotFoundException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.SimpleAdapter.ViewBinder; import android.widget.Toast; public class TestListView extends Activity { private String sightID; private Bitmap bmp; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.comment); bmp = getLoacalBitmap("/sdcard/image.jpg"); ListView listView = (ListView) findViewById(R.id.listView1); MyListAdapter adapter = new MyListAdapter(TestListView.this, getData()); listView.setAdapter(adapter); } public static Bitmap getLoacalBitmap(String url) { try { FileInputStream fis = new FileInputStream(url); return BitmapFactory.decodeStream(fis); } catch (FileNotFoundException e) { e.printStackTrace(); return null; } } // Bitmap bmp = BitmapFactory.decodeFile("/sdcard/1.jpg"); private List<Commentinfo> getData(){ ArrayList<Commentinfo> arrayList = new ArrayList<Commentinfo>(); for(int i=0;i<10;i++){ arrayList.add(new Commentinfo(bmp, "用户"+i, "内容"+i)); } return arrayList; } }
//2.Commentinfo.java package com.su; import android.graphics.Bitmap; public class Commentinfo { private Bitmap bitmap; private String comment; private String user; public Commentinfo(Bitmap bitmap, String user ,String comment ) { super(); this.bitmap = bitmap; this.user = user ; this.comment = comment; } public Bitmap getBitmap() { return bitmap; } public void setBitmap(Bitmap bitmap) { this.bitmap = bitmap; } public String getComment() { return comment; } public void setComment(String comment) { this.comment = comment; } public String getUser() { return user; } public void setUser(String user) { this.user = user; } } 3.Mylistadapter.java package com.su; import java.util.List; import android.app.Activity; 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 MyListAdapter extends BaseAdapter { private Activity context; private List<Commentinfo> list; public MyListAdapter(Activity context, List<Commentinfo> list) { this.context = context; this.list = list; } @Override public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater inflater = context.getLayoutInflater(); View itemView = inflater.inflate(R.layout.commentchild, null); Commentinfo info = list.get(position); TextView textView = (TextView) itemView.findViewById(R.id.itemUser); TextView textView1 = (TextView) itemView.findViewById(R.id.itemContent); ImageView imageView = (ImageView) itemView .findViewById(R.id.profileImage); textView.setText(info.getUser()); textView1.setText(info.getComment()); imageView.setImageBitmap(info.getBitmap()); return itemView; } @Override public int getCount() { return list.size(); } @Override public Object getItem(int position) { return list.get(position); } @Override public long getItemId(int position) { return position; } }
//源码下载http://dl.dbank.com/c0w7tekit4
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