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我有一個安卓列表視圖與篩選搜索,但我不知道如何爲每個項目的列表視圖添加圖像。我嘗試了下面的代碼,但它沒有正常工作。該程序不顯示列表視圖中的項目的圖像。我該怎麼辦?如何在ListView中添加圖像?
import android.os.Bundle;
import android.app.ListActivity;
import android.content.Intent;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends ListActivity {
String[] str = {"One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten"};
ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, str);
setListAdapter(adapter);
//test image
//ImageView img = (ImageView) findViewById(R.id.imageView1);
//str [2] = str[2]+img;
//Search In ListView
EditText ed = (EditText) findViewById(R.id.editText1);
ListView lv = (ListView) findViewById(android.R.id.list);
lv.setTextFilterEnabled(true);
ed.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
MainActivity.this.adapter.getFilter().filter(arg0);
}
});
}
public View getView(int position, View convertView, ViewGroup parent) {
ImageView myImageView = new ImageView();
switch(position) {
case 0: myImageView.setImageResource(R.drawable.bp);
break;
case 1: myImageView.setImageResource(R.drawable.bp);
break;
case 2: myImageView.setImageResource(R.drawable.bp);
break;
}
return myImageView;
}
//Click Listener
@Override
protected void onListItemClick(ListView l, View v, int position, long id){
super.onListItemClick(l, v, position, id);
Toast.makeText(this, adapter.getItem(position) +" Your Selected ",
Toast.LENGTH_SHORT).show();
if (adapter.getItem(position).equals("One")) {
startActivity(new Intent(MainActivity.this, One.class));
} else if (adapter.getItem(position).equals("Two")) {
startActivity(new Intent(MainActivity.this, Two.class));
}
}
@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;
}
}