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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