我在rowlayout.xml中有三個textview。但是,當我運行我的應用程序時,除了等級以外的所有值都顯示爲false。ListView值全部顯示爲false(在Android中)
rowlayout.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/icon"
android:layout_width="44dp"
android:layout_height="44dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="10dp"
android:layout_marginTop="4dp"
android:src="@drawable/ic_launcher" >
</ImageView>
<TextView
android:id="@+id/rating"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginLeft="4dp"
android:layout_marginRight="10dp"
android:layout_marginTop="4dp"
android:text="@+id/rating" />
<TextView
android:id="@+id/distance"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_toLeftOf="@id/rating"
android:layout_marginLeft="4dp"
android:layout_marginRight="10dp"
android:layout_marginTop="4dp"
android:text="@+id/distance" />
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="@+id/icon"
android:text="@+id/name"
android:textSize="40sp" />
</RelativeLayout>
和MainActivity.java類:
package com.SahilSiddesh.far4;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends ListActivity {
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
String[] values = new String[] { "Android", "iPhone", "WindowsMobile",
"Blackberry", "WebOS", "Ubuntu", "Windows7", "Max OS X",
"Linux", "OS/2" };
String[] distance = new String[] {"1","2","3","4","5","6","7","8","9","10"};
String[] rating = new String[] {"2","2.5", "5", "4.6", "0","1","3","4","5","1"};
// use your custom layout
ArrayAdapter<String> adapterValues = new ArrayAdapter<String>(this,
R.layout.rowlayout, R.id.name, values);
setListAdapter(adapterValues);
ArrayAdapter<String> adapterDistance = new ArrayAdapter<String>(this,
R.layout.rowlayout, R.id.distance, distance);
setListAdapter(adapterDistance);
ArrayAdapter<String> adapterRating = new ArrayAdapter<String>(this,
R.layout.rowlayout, R.id.rating, rating);
setListAdapter(adapterRating);
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
String item = (String) getListAdapter().getItem(position);
Toast.makeText(this, item + " selected", Toast.LENGTH_LONG).show();
}
}
好的,謝謝。還請你能告訴我如何讓圖像(如上面的ic_launcher)動態設置。我的意思是我正在考慮實施相應評級的圖像。例如:如果評分是4分(滿分爲5分),那麼我會得到4星的圖像。我要求提供相關的代碼或示例,而不是如何創建圖像(在Photoshop中)。 – user3926896 2014-09-04 16:09:09
您可以在適配器中設置圖像getView方法,請通過鏈接,如何使用自定義適配器,然後您也可以使用圖像 – 2014-09-04 16:12:28