Android Working with ListView

activity_main.xml

<ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:id="@+id/listViewCountries" />

res/values/strings.xml

<resources>
    <string name="app_name">012</string>

    <string-array name="countries">
        <item>Iran</item>
        <item>India</item>
        <item>France</item>
        <item>Italy</item>
        <item>Iraq</item>
    </string-array>
</resources>

MainActivity.java

    ListView listViewCountries;
    ArrayAdapter<String> arrayAdapter;
    String[] countries;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        listViewCountries= (ListView) findViewById(R.id.listViewCountries);

        countries=getResources().getStringArray(R.array.countries);
        arrayAdapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,countries);

        listViewCountries.setAdapter(arrayAdapter);

        listViewCountries.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Toast toast=Toast.makeText(getBaseContext(),parent.getItemAtPosition(position).toString(),Toast.LENGTH_LONG);
                toast.show();
            }
        });
    }

References
https://github.com/mhdr/AndroidSamples/tree/master/012

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