如何实现从右侧打开抽屉菜单 [英] How to implement drawer menu open from right side
本文介绍了如何实现从右侧打开抽屉菜单的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我按照本教程创建了一个导航抽屉
但我需要的是，我需要从右侧打开相同的抽屉菜单.有人知道如何实现这一目标吗?
But what I need is , I need the same drawer menu open from right side . Anyone know how to achieve this?
以下是我的xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<LinearLayout
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical"
>
<include
android:id="@+id/toolbar"
layout="@layout/tool_bar"
/>
<FrameLayout
android:id="@+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="right"
app:headerLayout="@layout/header"
app:menu="@menu/drawer"
/>
在代码中
// Initializing Drawer Layout and ActionBarToggle
drawerLayout = (DrawerLayout) findViewById(R.id.drawer);
ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.openDrawer, R.string.closeDrawer){
@Override
public void onDrawerClosed(View drawerView) {
// Code here will be triggered once the drawer closes as we dont want anything to happen so we leave this blank
super.onDrawerClosed(drawerView);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item != null && item.getItemId() == android.R.id.home) {
if (drawerLayout.isDrawerOpen(Gravity.RIGHT)) {
drawerLayout.closeDrawer(Gravity.RIGHT);
} else {
drawerLayout.openDrawer(Gravity.RIGHT);
}
}
return false;
}
@Override
public void onDrawerOpened(View drawerView) {
// Code here will be triggered once the drawer open as we dont want anything to happen so we leave this blank
super.onDrawerOpened(drawerView);
}
};
推荐答案
在导航视图中试试这个
android:layout_gravity="end" 代替 android:layout_gravity="start"
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="end"
app:headerLayout="@layout/header"
app:menu="@menu/drawer"
/>
//在您的 java 活动文件中添加这些行，它将起作用
// Add these lines in your java activity file , it will works
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
if (mDrawer.isDrawerOpen(Gravity.RIGHT)) {
mDrawer.closeDrawer(Gravity.RIGHT);
} else {
mDrawer.openDrawer(Gravity.RIGHT);
}
return true;
case R.id.action_settings:
return true;
}
最终更新:
我更改了您的示例项目 (MainActivity.java) 中的一些行，现在可以正常工作了，请使用此代码.
I change some lines in your sample project(MainActivity.java), now it is working , use this code.
不要忘记在您的 xml 文件中编写 android:layout_gravity="end" 代替 android:layout_gravity="start".
do not forget to write android:layout_gravity="end" in place of android:layout_gravity="start" in your xml file.
package com.android4dev.navigationview;
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.support.v7.widget.Toolbar;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
Toolbar toolbar;
NavigationView navigationView;
DrawerLayout drawerLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar=(Toolbar)findViewById(R.id.toolbar);
navigationView=(NavigationView)findViewById(R.id.navigation_view);
drawerLayout=(DrawerLayout)findViewById(R.id.drawer);
// Set a Toolbar to replace the ActionBar.
setToolbarAsActionBar();
// Setup drawer view
setupDrawerContent(navigationView);
// Set the menu icon instead of the launcher icon.
final ActionBar ab = getSupportActionBar();
ab.setHomeAsUpIndicator(R.drawable.ic_menu);
ab.setDisplayHomeAsUpEnabled(true);
//ab.setDisplayShowTitleEnabled(false);
Menu menu = navigationView.getMenu();
MenuItem item = menu.findItem(R.id.starred);
selectDrawerItem(item);
}
private void setToolbarAsActionBar() {
setSupportActionBar(toolbar);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
if (drawerLayout.isDrawerOpen(Gravity.RIGHT)) {
drawerLayout.closeDrawer(Gravity.RIGHT);
} else {
drawerLayout.openDrawer(Gravity.RIGHT);
}
return true;
case R.id.action_settings:
return true;
}
return super.onOptionsItemSelected(item);
}
private void setupDrawerContent(NavigationView navigationView) {
navigationView.setNavigationItemSelectedListener(
new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
//Checking if the item is in checked state or not, if not make it in checked state
if (menuItem.isChecked()) menuItem.setChecked(false);
else menuItem.setChecked(true);
selectDrawerItem(menuItem);
return true;
}
});
}
public void selectDrawerItem(MenuItem menuItem) {
// Create a new fragment and specify the planet to show based on
// position
switch (menuItem.getItemId()) {
case R.id.inbox:
Toast.makeText(getApplicationContext(), "Inbox Selected", Toast.LENGTH_SHORT).show();
ContentFragment fragment = new ContentFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.frame, fragment);
fragmentTransaction.commit();
break;
case R.id.starred:
Toast.makeText(getApplicationContext(), "Stared Selected", Toast.LENGTH_SHORT).show();
break;
case R.id.sent_mail:
Toast.makeText(getApplicationContext(), "Send Selected", Toast.LENGTH_SHORT).show();
break;
case R.id.drafts:
Toast.makeText(getApplicationContext(), "Drafts Selected", Toast.LENGTH_SHORT).show();
break;
case R.id.allmail:
Toast.makeText(getApplicationContext(), "All Mail Selected", Toast.LENGTH_SHORT).show();
break;
case R.id.trash:
Toast.makeText(getApplicationContext(), "Trash Selected", Toast.LENGTH_SHORT).show();
break;
case R.id.spam:
Toast.makeText(getApplicationContext(), "Spam Selected", Toast.LENGTH_SHORT).show();
break;
default:
Toast.makeText(getApplicationContext(), "Somethings Wrong", Toast.LENGTH_SHORT).show();
break;
}
drawerLayout.closeDrawers();
}
private ActionBarDrawerToggle setupDrawerToggle() {
return new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.openDrawer, R.string.closeDrawer);
}
}
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