Programmiererforum

Code: Select all

 













< /code>

< /p>

Aktivitätsklasse: < /p>

public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

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 = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
setFrameVisibility(true);
}

@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.colourred) {
getWindow().getDecorView().setBackgroundColor(Color.parseColor("#33CCCC"));
return true;
} else if(id == R.id.colourblue){
getWindow().getDecorView().setBackgroundColor(Color.parseColor("#CC9900"));

}

return super.onOptionsItemSelected(item);
}

@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
FragmentManager fragmentManager = getFragmentManager();

if (id == R.id.homepage) {
Intent homepage = new Intent (MainActivity.this, MainActivity.class);
startActivity(homepage);
// Handle the camera action
} else if (id == R.id.foodpage) {
//handle the food page here
fragmentManager.beginTransaction()
.replace(R.id.content_frame
, new FirstFragment())
.commit();

} else if (id == R.id.schedulepage) {
fragmentManager.beginTransaction()
.replace(R.id.content_frame
, new ScheduleFragment())
.commit();

} else if (id == R.id.emotionspage) {
fragmentManager.beginTransaction()
.replace(R.id.content_frame
, new EmotionsFragment())
.commit();

} else if (id == R.id.basicneedspage) {
fragmentManager.beginTransaction()
.replace(R.id.content_frame
, new BasicneedsFragment())
.commit();

} else if (id == R.id.exit) {
askBeforeExit();

}

DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}

public void onBackPressed() {

askBeforeExit();
}
}