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I have problem with my custom ListView.
SimpleAdapter adapter = new SimpleAdapter(this,
this.dh.selectAll(),
R.layout.custom_row_view,
new String[] {"Icon","Chance","TeamID"},
new int[] {R.id.text1,R.id.text2, R.id.text3});
setListAdapter(adapter);
This is my simple adapter. I want put into them icons, can I do that?
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Android Custom ListView (Adding Images, sub-title) After creating simple ListView, android also provides facilities to customize our ListView.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 2 − Add the following code to res/layout/activity_main. xml. In the above activity_main.
What is an Adapter in Android. An Adapter object acts as a bridge between an AdapterView and the underlying data for that view. The Adapter provides access to the data items. The Adapter is also responsible for making a View for each item in the data set.
Conclusion. While the ListView is still a very capable view, for new projects, I'll strongly advise you use RecyclerView, and consider the ListView as deprecated. I can't think of any situation where the ListView is better than the RecyclerView, even if you implement your ListView with the ViewHolder pattern.
yes you can ...
MyList.java:
package com.TestActivity;
import java.util.ArrayList;
import java.util.HashMap;
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.SimpleAdapter;
public class MyList extends ListActivity {
final static ArrayList<HashMap<String, ?>> data = new ArrayList<HashMap<String, ?>>();
static{
HashMap<String, Object> row = new HashMap<String, Object>();
row.put("Icon", R.drawable.flags_albania);
row.put("Chance", "65%");
row.put("TeamID", "Albania");
data.add(row);
row = new HashMap<String, Object>();
row.put("Icon", R.drawable.flags_rpa);
row.put("Chance", "55%");
row.put("TeamID", "RPA");
data.add(row);
row = new HashMap<String, Object>();
row.put("Icon", R.drawable.flags_polska);
row.put("Chance", "100%");
row.put("TeamID", "Polska :)");
data.add(row);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SimpleAdapter adapter = new SimpleAdapter(this,
data,
R.layout.row,
new String[] {"Icon","Chance","TeamID"},
new int[] { R.id.imageView1, R.id.textView1,R.id.textView2});
setListAdapter(adapter);
}
}
res/layout/row.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView android:layout_height="wrap_content" android:layout_width="wrap_content" android:src="@drawable/icon" android:id="@+id/imageView1"/>
<TextView android:text="TextView" android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
<TextView android:text="TextView" android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
</LinearLayout>
put pngs with flags to res/drawable-hdpi/
flags_albania.png flags_rpa.png flags_polska.png
and you will get smthing like this:
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