我目前正在制作一个程序,该程序使用传统的菜单按钮打开菜单。有两个不同的按钮:第一个应该打开左侧菜单,第二个用于打开设置。问题在于这两个按钮都打开相同的菜单。请帮我做点事情,以便每个按钮都可以打开自己的菜单。
我已经用有关这些按钮的youtube视频制作了应用程序的主要部分。但是他们有问题。
以下是使用第二个按钮打开的同一菜单的快照
这是我的代码:
package com.danielliakhovetskyi.mainactivity;
import android.content.ClipData;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.support.design.widget.NavigationView;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;
import java.util.Objects;
import java.util.logging.Level;
import java.util.logging.Logger;
public class MainActivity extends AppCompatActivity {
Menu menu;
DrawerLayout drawerLayout;
ActionBarDrawerToggle actionBarDrawerToggle;
NavigationView navigationView;
MenuItem maths;
private boolean menuItemsAssigned = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Objects.requireNonNull(getSupportActionBar()).setBackgroundDrawable(new ColorDrawable
(Color.parseColor("#872be3"))); //making ActionBar light-coloured
getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
getSupportActionBar().setCustomView(R.layout.abs_layout);
drawerLayout = findViewById(R.id.drawer_layout);
actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.open, R.string.close);
drawerLayout.addDrawerListener(actionBarDrawerToggle);
actionBarDrawerToggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
navigationView = findViewById(R.id.navview);
navigationView.setItemTextAppearance(R.style.WithFont);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (actionBarDrawerToggle.onOptionsItemSelected(item)) {
Toast.makeText(MainActivity.this, "Default is clicked", Toast.LENGTH_SHORT).show();
return super.onOptionsItemSelected(item);
} else {
return false;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.navigation_menu, menu);
/* this.menu = menu;
maths = menu.findItem(R.id.maths);
Logger.getGlobal().log(Level.INFO, "Maths Clicked");
Toast.makeText(this, "" + maths, Toast.LENGTH_SHORT).show();
maths.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
Intent intent = new Intent(MainActivity.this, SecondActivity.class);
startActivity(intent);
maths.setTitle("Maths");
Toast.makeText(MainActivity.this, "WORKS " + maths, Toast.LENGTH_SHORT).show();
Logger.getGlobal().log(Level.INFO, "Maths Clicked");
return false;
}
});
menuItemsAssigned = true;*/
return true;
}
}
答案 0 :(得分:1)
在onCreateOptionsMenu()
中有以下行:
getMenuInflater().inflate(R.menu.navigation_menu, menu);
这显然是错误的,因为它会放大导航抽屉的菜单作为操作栏菜单。
将R.menu.navigation_menu
替换为操作栏菜单。