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MainActivityとNavigation Drawerを5つの異なるアクティビティで作成しました。 1つのアクティビティをクリックすると、関連するアクティビティレイアウトが開きます。戻るボタンを押すと、MainActivityに進みます。NavigationViewで選択したナビゲーションアイテムが表示されない
問題は、選択したアクティビティ/アイテムの名前がNavigation Drawerにあるinvisibleですが、onClickは機能しています。私を助けてください。
は、ここに私のコードです
package com.cabbi;
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.design.widget.TabLayout;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.app.NavUtils;
import android.support.v4.view.GravityCompat;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
FragmentTransaction fragmentTransaction;
TabLayout tabLayout;
ViewPager viewPager;
TabsAdapter tabsAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
tabLayout= (TabLayout) findViewById(R.id.tab_layout);
viewPager= (ViewPager) findViewById(R.id.view_pager);
tabLayout.addTab(tabLayout.newTab().setText("RIDE NOW"));
tabLayout.addTab(tabLayout.newTab().setText("RIDE LATER"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
tabsAdapter=new TabsAdapter(getSupportFragmentManager(),tabLayout.getTabCount());
viewPager.setAdapter(tabsAdapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
// 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 = (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();
switch (id){
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
//noinspection SimplifiableIfStatement
// if (id == R.id.action_settings) {
// }
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_myrides) {
startActivity(new Intent(MainActivity.this,MyRides.class));
} else if (id == R.id.nav_profile) {
startActivity(new Intent(MainActivity.this,MyProfile.class));
} else if (id == R.id.nav_promotions) {
startActivity(new Intent(MainActivity.this,Promotions.class));
} else if (id == R.id.nav_changepassword) {
startActivity(new Intent(MainActivity.this,ResetPassword.class));
} else if (id == R.id.nav_logout) {
Intent intent=new Intent(MainActivity.this,LoginActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
私はそれが透明だと思います。バックグラウンド/テキストの色を設定してください。 –
リプレイをお寄せいただきありがとうございます –
xmlファイルを投稿してください... –