在android中如何在类文件中以编程方式设置导航抽屉头图像和名称？

Question

在android studio 1.4.1中，我创建了默认的新导航抽屉项目。我的问题是在这个项目中有nav_header_main.xml文件，该文件用于导航标题图像和名称。我希望这个图像和名称应该在我的主类活动中以编程方式设置。怎么做，我尝试了很多，但应用程序崩溃了。

nav_header_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout        
android:layout_width="match_parent"
android:id="@+id/headerView"
android:layout_height="@dimen/nav_header_height"
android:background="@drawable/side_nav_bar"
android:gravity="bottom"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:theme="@style/ThemeOverlay.AppCompat.Dark">

<ImageView
    android:id="@+id/imageView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:paddingTop="@dimen/nav_header_vertical_spacing"
    android:src="@android:drawable/sym_def_app_icon" />

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingTop="@dimen/nav_header_vertical_spacing"
    android:text="Android Studio"
    android:textAppearance="@style/TextAppearance.AppCompat.Body1" />

<TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="android.studio@android.com" />

</LinearLayout>

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout            

xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">

<include
    layout="@layout/app_bar_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

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

    </android.support.v4.widget.DrawerLayout>

MainActivity.Class

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
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.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        LinearLayout headerImageView= (LinearLayout) findViewById(R.id.headerView);


        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();
            }
        });

        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();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            Toast.makeText(getApplicationContext(),"working",Toast.LENGTH_LONG).show();
            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) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);

        return true;
    }
}

Answer 1

NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
View hView =  navigationView.getHeaderView(0);
TextView nav_user = (TextView)hView.findViewById(R.id.nav_name);
nav_user.setText(user);

希望这有帮助！

Answer 2

如错误190226中所述，自版本23.1.0以来获取标题布局视图： navigationView.findViewById(R.id.navigation_header_text)不再有效。

解决方法是以编程方式对headerview进行膨胀，并从膨胀的标题视图中按ID查找视图。

例如：

View headerView = navigationView.inflateHeaderView(R.layout.navigation_header);
headerView.findViewById(R.id.navigation_header_text);

理想情况下应该有一个方法getHeaderView()，但它已经被提出，让我们看看并等待它在设计支持库的功能版本中发布。

Answer 3

不要使用代码通过膨胀布局

在xml add中添加标头

View hView =  navigationView.inflateHeaderView(R.layout.nav_header_main);
ImageView imgvw = (ImageView)hView.findViewById(R.id.imageView);
TextView tv = (TextView)hView.findViewById(R.id.textview);
imgvw .setImageResource();
tv.settext("new text");

Answer 4

在Kotlin

    val hView = nav_view.getHeaderView(0)
    val textViewName = hView.findViewById(R.id.textViewName) as TextView
    val textViewEmail = hView.findViewById(R.id.textViewEmail) as TextView
    val imgvw = hView.findViewById(R.id.imageView) as ImageView
    imgvw.setImageResource(R.drawable.ic_menu_gallery)

Answer 5

这是我的代码 下面完美的工作 不要在NavigationView中添加标题 activity_main.xml中的标记

<include
    layout="@layout/app_bar_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:fitsSystemWindows="true"
    app:menu="@menu/activity_main_drawer"
    app:itemBackground="@drawable/active_drawer_color" />

使用以下代码

以编程方式添加标头

View navHeaderView = navigationView.inflateHeaderView(R.layout.nav_header_main);
    headerUserName = (TextView) navHeaderView.findViewById(R.id.nav_header_username);
    headerMobileNo = (TextView) navHeaderView.findViewById(R.id.nav_header_mobile);
    headerMobileNo.setText("+918861899697");
    headerUserName.setText("Anirudh R Huilgol");

Answer 6

  nav = ( NavigationView ) findViewById( R.id.navigation );

    if( nav != null ){
        LinearLayout mParent = ( LinearLayout ) nav.getHeaderView( 0 );

        if( mParent != null ){
            // Set your values to the image and text view by declaring and setting as you need to here.

            SharedPreferences prefs = getSharedPreferences("user_data", MODE_PRIVATE);
            String photoUrl = prefs.getString("photo_url", null);
            String user_name = prefs.getString("name", "User");

            if(photoUrl!=null) {
                Log.e("Photo Url: ", photoUrl);

                TextView userName = mParent.findViewById(R.id.user_name);
                userName.setText(user_name);

                ImageView user_imageView = mParent.findViewById(R.id.avatar);

                RequestOptions requestOptions = new RequestOptions();
                requestOptions.placeholder(R.drawable.ic_user_24dp);
                requestOptions.error(R.drawable.ic_user_24dp);

                Glide.with(this).load(photoUrl)
                        .apply(requestOptions).thumbnail(0.5f).into(user_imageView);

            }

        }
    }

希望这有帮助。

Answer 7

首先，您需要访问MainActivity（或调用活动）中的导航抽屉，如下所示：

    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);

然后，您需要从activity_main.xml中删除标题布局，因为布局将以编程方式在MainActivity中膨胀。您的activity_main.xml应如下所示：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout            

xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">

<include
    layout="@layout/app_bar_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:fitsSystemWindows="true"
    app:menu="@menu/activity_main_drawer" />

    </android.support.v4.widget.DrawerLayout>

然后在您的MainActivity中，我们对nav_header_main布局进行充气并访问其视图，在本例中为ImageView和TextView

//inflate header layout
View navView =  navigationView.inflateHeaderView(R.layout.nav_header_main);
//reference to views
ImageView imgvw = (ImageView)navView.findViewById(R.id.imageView);
TextView tv = (TextView)navView.findViewById(R.id.textview);
//set views
imgvw.setImageResource(R.drawable.your_image);
tv.setText("new text");

navigationView.setNavigationItemSelectedListener(this);

您可以阅读更多here

Answer 8

我知道这是一个很老的帖子，但我相信这可能有助于有人在路上。

您可以通过执行以下操作简单地获取导航视图的headerView元素：

 NavigationView mView = ( NavigationView ) findViewById( R.id.nav_view );

 if( mView != null ){
     LinearLayout mParent = ( LinearLayout ) mView.getHeaderView( 0 );

     if( mParent != null ){
        // Set your values to the image and text view by declaring and setting as you need to here. 
     }
 }

我希望这有助于某人。

Answer 9

它和旧帖子，但它对我来说是新的。所以，它是直截了当的！ 在这部分代码中：

 public boolean onNavigationItemSelected(MenuItem item) {

} ，我将ImageView绑定到LinearLayout，其中包含下面列出的示例中的ImageView。记住：它与您开始新项目时获得的代码相同，并选择模板＆＃34;导航抽屉活动＆＃34;：

<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="@dimen/nav_header_vertical_spacing"
android:src="@android:drawable/sym_def_app_icon" />

我在nav_header_main.xml中提供了LinearLayout和ID（在我的情况下，我选择了＆＃39; navigation_header_container＆＃39;，所以就这样：

LinearLayout lV = (LinearLayout) findViewById(R.id.navigation_header_container);

    ivCloseDrawer = (ImageView) lV.findViewById(R.id.imageView);
    ivCloseDrawer.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            drawer.closeDrawer(GravityCompat.START);
        }
    });

注意：在onCreate（MainActivity）之前，我在顶部声明了一个私有的ImageView ivCloseDrawer。

工作得很好！ 希望能帮助到你， 最诚挚的问候。

Answer 10

   FirebaseAuth firebaseauth = FirebaseAuth.getInstance(); 

   NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);   //displays text of header of nav drawer.
    View headerview = navigationView.getHeaderView(0);

    TextView tt1 = (TextView) headerview.findViewById(R.id.textview_username);
    tt1.setText(firebaseauth.getCurrentUser().getDisplayName());//username of logged in user.  

   TextView tt = (TextView) headerview.findViewById(R.id.textView_emailid);
    tt.setText(firebaseauth.getCurrentUser().getEmail());    //email id of logged in user.

    final ImageView img1 = (ImageView) headerview.findViewById(R.id.imageView_userimage);
    Glide.with(getApplicationContext())
            .load(firebaseauth.getCurrentUser().getPhotoUrl()).asBitmap().atMost().error(R.drawable.ic_selfie_point_icon)   //asbitmap after load always.
            .into(new SimpleTarget<Bitmap>() {
                @Override
                public void onResourceReady(Bitmap resource, GlideAnimation<? super Bitmap> glideAnimation) {
                    img1.setImageBitmap(resource);
                }
            });

我已经用一些逻辑自己编写了这段代码...它可以100％工作..... pls可以提高我的回答。

textview和imageview来自@ layout / nav_header_main.xml

Answer 11

val set_arr=arr.toSet
set_arr: scala.collection.immutable.Set[String] = Set(Complete, ISRM, Development, In Queue, Internally, Development Done/ Eng testing, Analyze, In-Progress, Development Ready, Externally)

//union example
set_arr.union(set2)

//intersection example
set_arr.intersect(set2)

这将解决您的问题<3

Answer 12

如果您正在使用绑定，则可以这样做

val headerView = binding.navView.getHeaderView(0)
val headerBinding = NavDrawerHeaderBinding.bind(headerView)
headerBinding.textView.text = "Your text here"

Answer 13

编辑：适用于设计库最高23.0.1但不适用于23.1.0

在主布局xml中，您将定义NavigationView，在其中使用app:headerLayout来设置标题视图。

<android.support.design.widget.NavigationView
        android:id="@+id/navigation_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:headerLayout="@layout/nav_drawer_header"
        app:menu="@menu/navigation_drawer_menu" />

@layout/nav_drawer_header将成为图像和文本的占位符。

<强> nav_drawer_header.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="170dp"
android:orientation="vertical">

<RelativeLayout
    android:id="@+id/headerRelativeLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scaleType="fitXY"
        android:src="@drawable/background" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="@dimen/action_bar_size"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:background="#40000000"
        android:gravity="center"
        android:orientation="horizontal"
        android:paddingBottom="5dp"
        android:paddingLeft="16dp"
        android:paddingRight="10dp"
        android:paddingTop="5dp">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginLeft="35dp"
            android:orientation="vertical"
            android:weightSum="2">


            <TextView
                android:id="@+id/navHeaderTitle"
                android:layout_width="wrap_content"
                android:layout_height="0dp"
                android:layout_weight="1"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:textColor="@android:color/white" />

            <TextView
                android:id="@+id/navHeaderSubTitle"
                android:layout_width="wrap_content"
                android:layout_height="0dp"
                android:layout_weight="1"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:textColor="@android:color/white" />

        </LinearLayout>

    </LinearLayout>
</RelativeLayout>
</LinearLayout>

在您的主要课程中，您可以像处理正常的其他观点一样处理Imageview和TextView。

TextView navHeaderTitle = (TextView) findViewById(R.id.navHeaderTitle);
navHeaderTitle.setText("Application Name");

TextView navHeaderSubTitle = (TextView) findViewById(R.id.navHeaderSubTitle);
navHeaderSubTitle.setText("Application Caption");

希望这有帮助。

Answer 14

NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); navigationView.addHeaderView(yourview);

Answer 15

您还可以使用Kotlinx功能

val hView = nav_view.getHeaderView(0)
hView.textViewName.text = "lorem ipsum"
hView.imageView.setImageResource(R.drawable.ic_menu_gallery)

Answer 16

这是您可以用来获取标题视图并自动设置数据的方法

val headerView: View? = navigationView.getHeaderView(0) // Index of the added headerView  

// Now you can access child views of the header view
val titleTextView: TextView? = headerView?.findViewById(R.id.titleTextView)