How to create Custom Listview in Android

code : https://github.com/thana19/testCustomListView

1. New Project with Empty Activity

2. New layout “fragment_main”

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:text="Main Fragment"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

3. New Fragment “MainFragment”

public class MainFragment extends Fragment {

    public MainFragment() {
        super();
    }

    public static MainFragment newInstance(){
        MainFragment fragment = new MainFragment();
        Bundle args = new Bundle();
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onStart() {
        super.onStart();
    }

    @Override
    public void onStop() {
        super.onStop();
    }

    /*
     * Save Instance State Here
     */
    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        // Save Instance State here
    }

    /*
     * Restore Instance State Here
     */
    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        if (savedInstanceState != null) {
            // Restore Instance State here
        }
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_main, container, false);
        return rootView;
    }
}

4. add FrameLayout in activity_main

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <FrameLayout
        android:id="@+id/contentContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

5. add contentContainer in MainActivity

public class MainActivity extends AppCompatActivity {

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

        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.contentContainer, MainFragment.newInstance())
                    .commit();
        }

    }
}

6. add ListView

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:text="Main Fragment"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

7. ListView Custom Design

8. Create New Layout “main_list_item”

<?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="vertical">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="3dp"
        android:orientation="horizontal">
        
        <ImageView
            android:id="@+id/imgView"
            android:layout_width="100dp"
            android:layout_height="160dp"
            android:scaleType="centerCrop"
            android:src="@drawable/p2" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="160dp"
            android:orientation="vertical"
            android:padding="10dp">

            <TextView
                android:id="@+id/tvHeader"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Text Content Title"
                android:textSize="18sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/tvDate"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="13/6/2017"
                android:textSize="12sp"
                android:textStyle="italic" />

            <TextView
                android:id="@+id/tvDetail"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="10dp"
                android:text="@string/str1" />

        </LinearLayout>

    </LinearLayout>

    <FrameLayout

        android:layout_width="match_parent"
        android:layout_height="3dp"
        android:background="#E0E0E0" />

</LinearLayout>

9. Create New Class “MainListItem”

public class MainListItem extends FrameLayout {
    public MainListItem(@NonNull Context context) {
        super(context);
        initInflate();
        initInstances();
    }

    public MainListItem(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        initInflate();
        initInstances();
        initWithAttrs(attrs, 0, 0);
    }

    public MainListItem(@NonNull Context context, @Nullable AttributeSet attrs, @AttrRes int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initInflate();
        initInstances();
        initWithAttrs(attrs, defStyleAttr, 0);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    public MainListItem(@NonNull Context context, @Nullable AttributeSet attrs, @AttrRes int defStyleAttr, @StyleRes int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
        initInflate();
        initInstances();
        initWithAttrs(attrs, defStyleAttr, defStyleRes);
    }

    private void initInflate() {
        inflate(getContext(), R.layout.main_list_item, this);
    }

    private void initInstances() {
        // findViewById here
    }

    private void initWithAttrs(AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        /*
        TypedArray a = getContext().getTheme().obtainStyledAttributes(
                attrs,
                R.styleable.StyleableName,
                defStyleAttr, defStyleRes);

        try {

        } finally {
            a.recycle();
        }
        */
    }
}

10. Create New Class “MainListAdapter”

public class MainListAdapter extends BaseAdapter {
    @Override
    public int getCount() {
        return 10;
    }

    @Override
    public Object getItem(int i) {
        return null;
    }

    @Override
    public long getItemId(int i) {
        return 0;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        MainListItem item;
        if (view != null)
            item = (MainListItem) view;
        else
            item = new MainListItem(viewGroup.getContext());
        return item;
    }
}

11. Add findViewById in “MainFragment”

    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_main, container, false);

        ListView listView = (ListView) rootView.findViewById(R.id.listView);
        MainListAdapter listAdapter = new MainListAdapter();
        listView.setAdapter(listAdapter);

        return rootView;
    }
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