I'm trying to close Drawer when I click on an item, however I'm getting the error:
android.widget.FrameLayout$LayoutParams cannot be cast to android.support.v4.widget.DrawerLayout$LayoutParams
Does anyone know what it can be?
My code:
main_activity.xml
<android.support.v7.widget.Toolbar
android:id = "@+id/toolbarTelaOpcoes"
android:layout_height = "?attr/actionBarSize"
android:layout_width = "match_parent"
android:minHeight = "?attr/actionBarSize"
android:background = "?attr/colorPrimary"
android:elevation = "4dp" />
<android.support.v4.widget.DrawerLayout
android:id = "@+id/drawer_layout"
android:layout_width = "match_parent"
android:layout_height = "match_parent">
<FrameLayout
android:id = "@+id/content_frame"
android:layout_width = "match_parent"
android:layout_height = "match_parent"
android:orientation = "vertical">
<ListView
android:id = "@+id/left_drawer"
android:layout_width = "240dp"
android:layout_height = "match_parent"
android:layout_gravity = "left"
android:background="@color/white"
android:choiceMode = "singleChoice"
android:divider = "@color/black"
android:dividerHeight = "0dp"/>
</FrameLayout>
</android.support.v4.widget.DrawerLayout>
MainActivity
public class OpcoesActivity extends AppCompatActivity
implements AdapterView.OnItemClickListener {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private Toolbar mToolbar;
private ActionBarDrawerToggle mBarDrawerToggle;
private LinearLayout linearLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_opcoes);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
linearLayout = (LinearLayout) findViewById(R.id.linearLayout);
mToolbar = (Toolbar) findViewById(R.id.toolbarTelaOpcoes);
setSupportActionBar(mToolbar);
mBarDrawerToggle = new ActionBarDrawerToggle(
this,
mDrawerLayout,
mToolbar,
R.string.app_name,
R.string.app_name
){
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
supportInvalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
super.onDrawerClosed(drawerView);
supportInvalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mBarDrawerToggle);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
this,
android.R.layout.simple_list_item_1,
getResources().getStringArray(R.array.opcoes));
mDrawerList.setAdapter(adapter);
// mDrawerList.setOnClickListener(this);
if(savedInstanceState == null){
exibirItem(0);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_opcoes, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
atualizarTitulo(drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mBarDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mBarDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(mBarDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
private void exibirItem(int position) {
String selecionado = mDrawerList.getItemAtPosition(position).toString();
Fragment fragment = OpcoesFragment.novaInstacia(selecionado);
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
mDrawerList.setItemChecked(position, true);
mDrawerLayout.closeDrawer(mDrawerList);
}
private void atualizarTitulo(boolean drawerIsOpen) {
if(drawerIsOpen) {
mToolbar.setTitle(R.string.app_name);
} else {
int posicaoAtual = mDrawerList.getCheckedItemPosition();
String opcaoAtual = mDrawerList.getItemAtPosition(posicaoAtual).toString();
mToolbar.setTitle(opcaoAtual);
}
}
}
Error in next line of code
mDrawerLayout.closeDrawer (mDrawerList);