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我有一個ListView
但我不能把圖像放在上面。 的錯誤是在Activity_listView
在holder.image.setImageDrawable(datos[position].getImage());
我怎樣才能把圖像放在listView中?
的錯誤消息是
The method setImageDrawable(Drawable) in the type ImageView is not applicable
for the arguments (ImageView)
任何想法解決這個問題?
活性(Activity_listView):
package com.simarro.asteroids;
import android.support.v7.app.ActionBarActivity;
import android.app.Activity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
public class Activity_listView extends ActionBarActivity {
private ListView lstOpciones;
ImageView asteroid = (ImageView)findViewById(R.id.img_asteroid);
private puntuacion[] datos = new puntuacion[] {
new puntuacion(asteroid,"Pepito Dominguez", "15489"),
new puntuacion(asteroid,"Pedro Martínez", "16598"),
new puntuacion(asteroid,"Paco Perez", "16332"),
new puntuacion(asteroid,"Rosana Fernandez", "18792"),
new puntuacion(asteroid,"Paco Jones", "960") };
class AdaptadorTitulares extends ArrayAdapter<puntuacion> {
Activity context;
AdaptadorTitulares(Activity context) {
super(context, R.layout.puntuacion, datos);
this.context = context;
}
public View getView(int position, View convertView, ViewGroup parent) {
View item = convertView;
ViewHolder holder;
if (item == null) {
LayoutInflater inflater = context.getLayoutInflater();
item = inflater.inflate(R.layout.puntuacion, null);
holder = new ViewHolder();
holder.image=(ImageView)item.findViewById(R.id.img_asteroid);
holder.jugador = (TextView) item.findViewById(R.id.LblJugador);
holder.puntuacion = (TextView) item.findViewById(R.id.LblPuntuacion);
item.setTag(holder);
} else {
holder = (ViewHolder) item.getTag();
}
holder.image.setImageDrawable(datos[position].getImage());
holder.jugador.setText(datos[position].getJugador());
holder.puntuacion.setText(datos[position].getPuntuacion());
return (item);
}
}
static class ViewHolder {
ImageView image;
TextView jugador;
TextView puntuacion;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_view);
AdaptadorTitulares adaptador = new AdaptadorTitulares(this);
lstOpciones = (ListView) findViewById(R.id.LstOpciones);
//¡FUUUUUUUUU-SIÓN!
lstOpciones.setAdapter(adaptador);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_list_view, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
的內容佈局的ListView(puntuacion.xml)的XML:
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:columnCount="3"
android:orientation="horizontal" >
<ImageView
android:id="@+id/img_asteroid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/asteroid" />
<TextView
android:id="@+id/LblJugador"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ff0"
android:textSize="30px"
android:textStyle="bold" />
<TextView
android:id="@+id/LblPuntuacion"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30px"
android:textStyle="normal" />
</GridLayout>
的佈局,其中是列表視圖(listView.xml):
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ListView android:id="@+id/LstOpciones"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
獲得值的類(Puntuacion)
package com.simarro.asteroids;
import android.graphics.drawable.Drawable;
import android.widget.ImageView;
public class puntuacion
{
private ImageView image;
private String jugador;
private String puntuacion;
public puntuacion(ImageView img, String tit, String sub){
image=img;
puntuacion = sub;
jugador = tit;
}
public ImageView getImage(){
return image;
}
public String getJugador(){
return jugador;
}
public String getPuntuacion(){
return puntuacion;
}
}
然後,在Activity_listView的puntuacion實例中,改爲小行星,我應該使用什麼格式?一個字符串,如「drawable/asteroid」來訪問圖像? – 2014-11-14 18:47:26
我不太確定我明白... – codeMagic 2014-11-14 18:56:11
在Activity_listView中我有一個puntuacion的實例。第一個參數實際上是一個ImageView。當從ImageView的puntuacion.java中將構造函數的第一個參數更改爲Drawable時,此實例需要將第一個參數設置爲Drawable類型。 ImageView asteroid =(ImageView)findViewById(R.id.img_asteroid);新的puntuacion [小行星,「Pepito Dominguez」,「15489」), 這個想法後來,將小行星替換爲一些Drawable。 Drawable將如何?對不起,我的英文很糟糕。 – 2014-11-14 19:04:54