android listview don't apprear when implement it with Activity, not listActivity

Question

i want to put listview into a layout and i want to use just Activity class , not listActivity, i saw these two questions

First

Second

and i did the exactly what they say, but i still have nothing apprear in the listview

Java code

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class FoodsMenu extends Activity {

    String foods[] = { "Betza" };
    ListView lvFoods;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.foodsmenu);
        initialize();
    }

    private void initialize() {
        // TODO Auto-generated method stub
        lvFoods = (ListView) findViewById(R.id.lvFoods);
        lvFoods.setAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, foods));


    }

}

layout code foodsmenu.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"
    android:orientation="horizontal" >

    <ListView
        android:id="@+id/lvFoods"
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:background="#333333"
        android:fillViewport="true" >
    </ListView>

    <LinearLayout
        android:layout_width="40dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:background="#ffffff"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/tvA"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="A"
            android:textColor="#025f7c"
            android:textSize="13dp" />

        <TextView
            android:id="@+id/tvB"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="B"
            android:textColor="#025f7c"
            android:textSize="13dp" />

        <TextView
            android:id="@+id/tvC"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="C"
            android:textColor="#025f7c"
            android:textSize="13dp" />

        <TextView
            android:id="@+id/tvD"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="D"
            android:textColor="#025f7c"
            android:textSize="13dp" />

    </LinearLayout>

</LinearLayout>

what is the wrong with my works please?

which is your target os version. because same code is working for me. i tried with the code you posted only without changing any thing and its showing the list. — Raj, Jan 21 '13 at 11:15
this confuce me more, it works with you and i have trying to solve the problem for 2 days, what is the wrong please? i will try it in all my emulators — user user, Jan 21 '13 at 11:19

Raj · Accepted Answer · 2013-01-21T11:46:10.303

enter image description here

check the attached image. This is the screen shot of the samsung galxy tab with your code only and its working.

Below is the complete code i tested.

import android.app.Activity; import android.os.Bundle; import android.widget.ArrayAdapter; import android.widget.ListView;

public class TestSamplesActivity extends Activity {
 String foods[] = { "Betza", "Betza1", "Betza2", "Betza3", "Betza4" };
    ListView lvFoods;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.foodsmenu);
        initialize();
    }

    private void initialize() {
        // TODO Auto-generated method stub
        lvFoods = (ListView) findViewById(R.id.lvFoods);
        lvFoods.setAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, foods));


    }
}

foodsmenu.xml.

  <?xml version="1.0" encoding="utf-8"?>

<ListView
    android:id="@+id/lvFoods"
    android:layout_width="match_parent"
    android:layout_height="fill_parent"
    android:layout_weight="1"
    android:background="#333333"
    android:fillViewport="true" >
</ListView>

<LinearLayout
    android:layout_width="40dp"
    android:layout_height="fill_parent"
    android:layout_weight="1"
    android:background="#ffffff"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/tvA"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="A"
        android:textColor="#025f7c"
        android:textSize="13dp" />

    <TextView
        android:id="@+id/tvB"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="B"
        android:textColor="#025f7c"
        android:textSize="13dp" />

    <TextView
        android:id="@+id/tvC"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="C"
        android:textColor="#025f7c"
        android:textSize="13dp" />

    <TextView
        android:id="@+id/tvD"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="D"
        android:textColor="#025f7c"
        android:textSize="13dp" />

</LinearLayout>

</LinearLayout>

manifest

<?xml version="1.0" encoding="utf-8"?>

<uses-sdk android:minSdkVersion="10" />

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" >
    <activity
        android:label="@string/app_name"
        android:name=".TestSamplesActivity" >
        <intent-filter >
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

</manifest>

compare with your code if anything is missed.

i test it on my phone, sony ericsson expira arc s , and doesn't apprea the foods ? — user user, Jan 21 '13 at 11:25
do u thing that there is a configuration or something i should use ? — user user, Jan 21 '13 at 11:27
i restart my computer, then it works :) i don''t know why, thank you for helping , i will accept your answer — user user, Jan 21 '13 at 12:18
then that will be problem with cleaning and build of your app/eclipse. — Raj, Jan 21 '13 at 12:21

score 0 · Answer 2 · answered Jan 21 '13 at 12:35

0

Replace width="match_parent" of listview and width="40dp" of linear to 0dp
Adjust your weights accordingly like 0.8 for list and 0.2 for linear etc

answered Jan 21 '13 at 12:35

Pankaj

1,242
1
9
21

android listview don't apprear when implement it with Activity, not listActivity

2 Answers2