У меня есть класс с именем MainActivity.java, этот Java содержит код навигационной панели.Как использовать навигационный штрих-код?
Если я хочу создать другое действие с именем Contact.java, а также содержит код навигационной панели. Как повторно использовать код навигационной панели от MainActivity.java до Contact.java? Могу ли я создать класс для его решения?
Вот мой код:
package com.thisistap.isuper.www.contactbook;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
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.MenuItem;
import android.widget.Button;
import android.widget.TabHost;
import com.thisistap.isuper.www.contactbook.nav.*;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private Button contact_button;
private TabHost mTabHost = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// defined elements from layout (it can be modified)
contact_button = (Button) findViewById(R.id.contact_button);
// --- [Start] defined elements from Navigation Bar (it cannot be modified from here) ---
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);
// --- [End] defined elements from Navigation Bar (it cannot be modified from here) ---
// --- [Start] Button Group ---
contact_button.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View v) {
Intent myIntent = new Intent(MainActivity.this,Contact.class);
MainActivity.this.startActivity(myIntent);
}
});
// --- [End] Button Group ---
}
// --- [Start] Navigation Bar Action (it cannot be modified from here) ---
@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 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();
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_camera) {
Intent myIntent = new Intent(MainActivity.this,Contact.class);
MainActivity.this.startActivity(myIntent);
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
// --- [End] Navigation Bar Action (it cannot be modified from here) ---
}