如何在android studio 1.4的默认情况下从右侧制作导航菜单

Posted 2023-04-19

【中文标题】如何在android studio 1.4的默认情况下从右侧制作导航菜单

【英文标题】：How to make navigation menu from right side in default of android studio 1.4

【发布时间】：2016-02-12 08:13:06

【问题描述】：

我使用 android studio 1.4 的默认导航活动。

然后默认有导航左侧，我想从

制作导航菜单

右侧并从左到右更改切换按钮。如何制作

我尝试从头到尾改变navigationview的layout_gravity并改变

GravityCompat.START 到 MainActivity.java 中的 GravityCompat.END，然后报错

当我按下切换按钮时，记录 cat show

java.lang.IllegalArgumentException: No drawer view found with gravity LEFT

我的代码（默认来自 android studio 1.4）

public class MainActivity extends AppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener 
DrawerLayout drawer;
@Override
protected void onCreate(Bundle savedInstanceState) 
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    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();
        
    );

    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();




    //noinspection SimplifiableIfStatement


    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_camara) 
        // Handle the camera action
     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;

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<include layout="@layout/app_bar_main" android:layout_
    android:layout_ />

<android.support.design.widget.NavigationView android:id="@+id/nav_view"
    android:layout_ android:layout_
    android:layout_gravity="start" android:fitsSystemWindows="true"
    app:headerLayout="@layout/nav_header_main" app:menu="@menu/activity_main_drawer" />

谢谢你 对不起我的英语不好。

【问题讨论】：

您是否尝试过正确设置重力？像这样：android:layout_gravity="right"。然后在您的代码中：if (drawer.isDrawerOpen(GravityCompat.RIGHT)) drawer.closeDrawer(GravityCompat.RIGHT);

我试试这个，然后它显示错误“java.lang.IllegalArgumentException：没有找到重力LEFT的抽屉视图”

【参考方案1】：

用Gravity.RIGHT代替GravityCompat.START

【讨论】：

并在 xml 中使用 android:layout_gravity="rifgt" 而不是 "start"。

当我按下toggleButton java.lang.IllegalArgumentException 时不能和logcat 显示错误：没有找到重力LEFT 的抽屉视图

【参考方案2】：

public class MainActivity extends AppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener 
DrawerLayout drawer;
@Override
protected void onCreate(Bundle savedInstanceState) 
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    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();
        
    );

    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 boolean onCreateOptionsMenu(Menu menu) 

    getMenuInflater().inflate(R.menu.main, menu);
    return true;


@Override
public boolean onOptionsItemSelected(MenuItem item) 

    int id = item.getItemId();
     if (item != null && item.getItemId() == android.R.id.home) 
            if (drawer.isDrawerOpen(Gravity.LEFT)) 
                drawer.closeDrawer(Gravity.LEFT);
             else 
                drawer.openDrawer(Gravity.LEFT);
            
            return true;
        





    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_camara) 
        // Handle the camera action
     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) 

    


    drawer.closeDrawer(Gravity.RIGHT);
    return true;


 @Override
    public void onStart() 
        super.onStart();
        if (drawer_layout.isDrawerOpen(Gravity.RIGHT)) 
            drawer_layout.closeDrawer(Gravity.RIGHT);