@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
listView = (AsymmetricGridView) findViewById(R.id.listView);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
actionBar.setHomeAsUpIndicator(R.drawable.ic_menu);
actionBar.setDisplayHomeAsUpEnabled(true);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
if (navigationView != null) {
setupDrawerContent(navigationView);
}
if (USE_CURSOR_ADAPTER) {
if (savedInstanceState == null) {
adapter = new DefaultCursorAdapter(this, demoUtils.moarItems(50));
} else {
adapter = new DefaultCursorAdapter(this);
}
} else {
if (savedInstanceState == null) {
adapter = new DefaultListAdapter(this, demoUtils.moarItems(50));
} else {
adapter = new DefaultListAdapter(this);
}
}
listView.setRequestedColumnCount(3);
listView.setRequestedHorizontalSpacing(Utils.dpToPx(this, 3));
listView.setAdapter(getNewAdapter());
listView.setDebugging(true);
listView.setOnItemClickListener(this);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.one_column) {
setNumColumns(1);
} else if (id == R.id.two_columnns) {
setNumColumns(2);
} else if (id == R.id.three_columns) {
setNumColumns(3);
} else if (id == R.id.four_columns) {
setNumColumns(4);
} else if (id == R.id.five_columns) {
setNumColumns(5);
} else if (id == R.id.onetwenty_dp_columns) {
setColumnWidth(120);
} else if (id == R.id.twoforty_dp_columns) {
setColumnWidth(240);
} else if (id == R.id.append_items) {
adapter.appendItems(demoUtils.moarItems(50));
} else if (id == R.id.reset_items) {
demoUtils.currentOffset = 0;
adapter.setItems(demoUtils.moarItems(50));
} else if (id == R.id.reordering) {
listView.setAllowReordering(!listView.isAllowReordering());
item.setTitle(listView.isAllowReordering() ? "Prevent reordering" : "Allow reordering");
} else if (id == R.id.debugging) {
int index = listView.getFirstVisiblePosition();
View v = listView.getChildAt(0);
int top = (v == null) ? 0 : v.getTop();
listView.setDebugging(!listView.isDebugging());
item.setTitle(listView.isDebugging() ? "Disable debugging" : "Enable debugging");
listView.setAdapter(adapter);
listView.setSelectionFromTop(index, top);
} else if (id == android.R.id.home) {
drawerLayout.openDrawer(GravityCompat.START);
}
return super.onOptionsItemSelected(item);
}
private void setColumnWidth(int columnWidth) {
listView.setRequestedColumnWidth(Utils.dpToPx(this, columnWidth));
listView.determineColumns();
listView.setAdapter(getNewAdapter());
}
private void setNumColumns(int numColumns) {
listView.setRequestedColumnCount(numColumns);
listView.determineColumns();
listView.setAdapter(getNewAdapter());
}