I've been designing a drawer navigation bar where you can click a function that should call out the "versions_layout.xml" with inside a listview. Though, after I made everything the app crashes. I even tried by doing a separate java file with a ListActivity class, that worked but it showed nothing and mostly important I couldn't click anymore my drawer opening button.
I'll attach the separate java file I made in case I have to re-put it, and my actual MainActivity as of now ( I followed a tutorial for bringing everything in it without making a separate java file )
MainActivity:
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener { String[] android_versions={ "IIDX1", "IIDX2", "IIDX3"}; ListView listView; //List View object declaration ArrayAdapter<String> adapter; NavigationView navigationView = null; Toolbar toolbar = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); listView=(ListView)findViewById(R.id.id_list_view); //object declaration adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,android_versions); listView.setAdapter(adapter); //connect the adapter to list view listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { }ArrayAdapter<String> adapter; }); //Set the fragment initially Fragment fragment = new Fragment(); android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(R.id.fragment_container, fragment); fragmentTransaction.commit(); toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show(); } }); DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); ActionBarDrawerToggle toggle = new ActionBarDrawerToggle( this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close); drawer.setDrawerListener(toggle); toggle.syncState(); navigationView = (NavigationView) findViewById(R.id.nav_view); navigationView.setNavigationItemSelectedListener(this); } @Override public void onBackPressed() { DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); if (drawer.isDrawerOpen(GravityCompat.START)) { drawer.closeDrawer(GravityCompat.START); } else { super.onBackPressed(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } @SuppressWarnings("StatementWithEmptyBody") @Override public boolean onNavigationItemSelected(MenuItem item) { // Handle navigation view item clicks here. int id = item.getItemId(); if (id == R.id.nav_versions) { //Set the fragment initially versions_Fragment fragment = new versions_Fragment(); android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(R.id.fragment_container, fragment); fragmentTransaction.commit(); } if (id == R.id.nav_mycard) { //Set the fragment initially mycard_Fragment fragment = new mycard_Fragment(); android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(R.id.fragment_container, fragment); fragmentTransaction.commit(); } else if (id == R.id.nav_notes) { //Set the fragment initially notes_Fragment fragment = new notes_Fragment(); android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(R.id.fragment_container, fragment); fragmentTransaction.commit(); } else if (id == R.id.nav_fav) { //Set the fragment initially fav_Fragment fragment = new fav_Fragment(); android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(R.id.fragment_container, fragment); fragmentTransaction.commit(); } else if (id == R.id.nav_options) { //Set the fragment initially options_Fragment fragment = new options_Fragment(); android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(R.id.fragment_container, fragment); fragmentTransaction.commit(); } else if (id == R.id.nav_about) { //Set the fragment initially about_Fragment fragment = new about_Fragment(); android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(R.id.fragment_container, fragment); fragmentTransaction.commit(); } DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); drawer.closeDrawer(GravityCompat.START); return true; } }` Old "listview" java filed I had before linked to "versions_layout.xml" for the previous attempt:
public class listview extends Activity { private String[] style = {"IIDX 1st Style", "IIDX 2nd Style", "IIDX 3rd Style", "IIDX 4th Style"}; private ListView stylelistview; private ArrayAdapter arrayAdapter; //Called when the activity is created @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.versions_layout); stylelistview = (ListView) findViewById(R.id.stylelistview); arrayAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, style); stylelistview.setAdapter(arrayAdapter); } } verions_layout.xml
`
<ListView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/id_list_view" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:choiceMode="singleChoice" android:layout_alignParentBottom="true" /> </RelativeLayout> Thanks for any help!
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