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- package com.example.sam.drawerlayoutprac;
- import android.support.annotation.DrawableRes;
- import android.support.annotation.NonNull;
- import android.support.design.widget.NavigationView;
- import android.support.v4.app.Fragment;
- import android.support.v4.app.FragmentManager;
- import android.support.v4.app.FragmentTransaction;
- import android.support.v4.widget.DrawerLayout;
- import android.support.v7.app.ActionBarDrawerToggle;
- import android.support.v7.app.AppCompatActivity;
- import android.os.Bundle;
- import android.view.MenuItem;
- import android.widget.Toast;
- public class MainActivity extends AppCompatActivity {
- DrawerLayout drawerLayout;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- initDrawer();
- inigDrawerBody();
- }
- private void initDrawer(){
- drawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
- NavigationView navigationView = (NavigationView)drawerLayout.findViewById(R.id.navigation_view);
- navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
- @Override
- public boolean onNavigationItemSelected(@NonNull MenuItem item) {
- item.setChecked(true);
- drawerLayout.closeDrawers(); // important step
- Fragment fragment = null;
- switch (item.getItemId()){
- case R.id.lookfor_hotel:
- showToast("hotel clicked");
- fragment = new HotelFragment();
- switchFragment(R.id.drawer_layout_body,fragment);
- break;
- case R.id.lookfor_partner:
- showToast("partner clicked");
- fragment = new partnerFragment();
- switchFragment(R.id.drawer_layout_body,fragment);
- break;
- }
- return false;
- }
- });
- }// end InitDrawer
- private void inigDrawerBody() {
- Fragment fragment = new HotelFragment();
- switchFragment(R.id.drawer_layout_body,fragment);
- }
- private void switchFragment(int layoutId, Fragment fragment){
- FragmentManager fragmentManager = getSupportFragmentManager();
- FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
- fragmentTransaction.replace(layoutId,fragment);
- fragmentTransaction.commit();
- }
- private void showToast(String msg){
- Toast.makeText(getApplicationContext(),
- msg,
- Toast.LENGTH_SHORT)
- .show();
- }
- }
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