kal*_*lai 71 android android-layout android-fragments androiddesignsupport android-navigationview
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;
}
}
小智 216
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);
希望这个帮助!
Par*_*ani 51
如错误190226中所述,自版本23.1.0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,并通过ID从膨胀的标题视图中查找视图.
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.
Ash*_*wal 20
不要通过膨胀布局使用代码在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");
在科特林
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)
val navigationView: NavigationView = findViewById(R.id.nv)
val header: View = navigationView.getHeaderView(0)
val tv: TextView = header.findViewById(R.id.profilename)
tv.text = "Your_Text"
这将解决您的问题 <3
这是我下面的代码完美运行不要在activity_main.xml中的NavigationView标签中添加标题
<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题
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");
首先，您需要像这样访问MainActivity（或调用活动）中的导航抽屉：
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
然后，您需要从activity_main.xml中删除标题布局，因为该布局将在MainActivity中以编程方式被夸大。您的activity_main.xml应该如下所示：
<?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，为nav_header_main布局充气并访问其视图，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);
你可以在这里阅读更多
编辑：适用于最高 23.0.1 的设计库，但不适用于 23.1.0
在主布局 xml 中，您将NavigationView定义它，用于app:headerLayout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" />
并且@layout/nav_drawer_header将是图像和文本的占位符。
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>
在你的主类中，你可以像普通的其他视图一样处理 和Imageview。TextView
TextView navHeaderTitle = (TextView) findViewById(R.id.navHeaderTitle);
navHeaderTitle.setText("Application Name");
TextView navHeaderSubTitle = (TextView) findViewById(R.id.navHeaderSubTitle);
navHeaderSubTitle.setText("Application Caption");
希望这可以帮助。
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