I bind some Views with Butterknife but it doesn't work somehow.
The Exception i got is
java.lang.IllegalStateException: Required view 'full_name_nav'
which basically says that he can't find the view. So i think i am binding at the wrong position, but i don't know where i should do it correctly. I am including the Navigation Header Layout in the NavigationView and binding these views in my oncreate method.
My Code:
XML Layout of the Activity:
<?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" <!-- Including the Navigation Header here-->
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
XML Layout of the Navigation Header
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
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"
app:srcCompat="#android:drawable/sym_def_app_icon" />
<TextView
android:id="#+id/user_name_nav"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/nav_header_vertical_spacing"
android:textAppearance="#style/TextAppearance.AppCompat.Body1" />
<TextView
android:id="#+id/full_name_nav"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="#+id/motorcycle_model_nav"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
My Main Activity where i actually bind the views:
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#BindView(R.id.full_name_nav)
TextView navigationName;
#BindView(R.id.motorcycle_model_nav)
TextView navigaitonMotorcycle;
#BindView(R.id.user_name_nav)
TextView navigationUsername;
SharedPreferences prefs;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
prefs = this.getSharedPreferences(
"package", Context.MODE_PRIVATE);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ButterKnife.bind(this); // Calling ButterKnife here
setNavInfo();
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){
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
}
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}
};
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
I implemented the Viewbinding in the OnCreateOptionsMenu, now it works.
Related
I am doing a project in the android studio, and I need a navigation drawer, I made a navigation but the problem I can't slide it left and right its block without moving.
slide problem
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="radiofm.arabelradio.MainActivity"
android:background="#e10716"
>
<android.support.design.widget.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
app:menu="#menu/navigation_menu"
android:layout_gravity="start"
>
</android.support.design.widget.NavigationView>
<ImageButton
android:id="#+id/id_play"
android:layout_width="100dp"
android:layout_height="100dp"
android:scaleType="fitCenter"
android:background="#e10716"
android:layout_marginBottom="84dp"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
<ImageView
android:id="#+id/imageView"
android:layout_width="250dp"
android:layout_height="100dp"
android:layout_marginTop="55dp"
app:srcCompat="#drawable/arabel"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
My java code
I am doing a project in the android studio and I need a navigation drawer, I made a navigation but the problem I can't slide it left and right its block without moving
public class MainActivity extends AppCompatActivity {
ImageButton id_play;
MediaPlayer mediaPlayer;
boolean prepared = false;
boolean started =false;
String stream ="http://arabelfm.ice.infomaniak.ch/arabelprodcastfm.mp3";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
id_play = (ImageButton) findViewById(R.id.id_play);
id_play.setEnabled(false);
//id_play.setText("LOADING");
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
new PlayerTask().execute(stream);
id_play.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (started){
started=false;
mediaPlayer.pause();
id_play.setImageResource(R.drawable.play);
// id_play.setText("PLAY");
}
else {
started=true;
mediaPlayer.start();
id_play.setImageResource(R.drawable.pause);
//id_play.setText("PAUSE");
}
}
});
}
Just Put your NavigationView bottom of all layout inside DrawerLayout
Like this
<android.support.v4.widget.DrawerLayout
xmlns:android="https://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"
tools:openDrawer="start">
---- Here is your layouts
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
Try adding the logic manually:
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
drawerLayout.openDrawer(GravityCompat.START);
}
});
Please replace RelativeLayout as parent layout to DrawerLayout
<androidx.drawerlayout.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/white"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/app_bar_home_navigation"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"/>
..
..
</androidx.drawerlayout.widget.DrawerLayout>
In MainActivity
DrawerLayout drawer;
ActionBarDrawerToggle toggle;
drawer = findViewById(R.id.drawer_layout);
toggle = new ActionBarDrawerToggle(
this, drawer, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
and add This Functionality on menu button click to open and close
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
drawer.openDrawer(GravityCompat.START);
}
I created a NavDrawer Activity with the assistant rather with the tutorial.
Now when I want to open a new fragment it does not replace the main content but prepends it. The textfield should disappear.
I guess I am trying to replace the wrong container. But why is it the wrong one and which is the correct one
ReadActivity.java
public class ReadActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_read);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//more code...
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 boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_read) {
// Handle the camera action
} else if (id == R.id.nav_settings) {
//the probably wrong
getFragmentManager().beginTransaction()
.replace(R.id.content, new SettingFragment)
.commit();
} else {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
activity_read.xml
<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
android:id="#id/content"
layout="#layout/app_bar_read"
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_read"
app:menu="#menu/activity_read_drawer" />
</android.support.v4.widget.DrawerLayout>
app_bar_read.xml
<android.support.design.widget.CoordinatorLayout 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/content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.max.speedread.ReadActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_read" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:src="#drawable/ic_menu_paste" />
</android.support.design.widget.CoordinatorLayout>
content_read.xml
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.max.speedread.ReadActivity"
tools:showIn="#layout/app_bar_read">
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editText"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:minHeight="200dp" />
</RelativeLayout>
SettingsFragment.java
public class SettingFragment extends PreferenceFragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Load the prefrences from XML resource
addPreferencesFromResource(R.xml.prefrences);
}
}
prefrences.xml
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<PreferenceCategory
android:title="foobar">
<EditTextPreference
android:key="checkbox_prefrence"
android:title="asdf"
android:summary="fdsa"
android:dialogTitle="asdf"/>
</PreferenceCategory>
</PreferenceScreen>
I hope I didn't append too much code :)
Everything is ok with your code, preferences screen is just drawing on top of your old layout.
The solution for this is:
In your content_read
Swap RelativeLayout (this is not necessary, you can just add new framelayout as child to the relative layout) with FrameLayout which will be your holder for fragments
Should look something like this>
content_read.xml
<FrameLayout
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/container"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/container"
android:layout_centerHorizontal="true"
android:layout_marginTop="202dp"
android:gravity="center"
android:text="JUST A RANDOM TEXT INSIDE CONTAINER WHICH WILL BE REPLACED BY SETTINGS FRAGMENT"
android:textAppearance="?android:attr/textAppearanceLarge"/>
</FrameLayout>
Note the FrameLayout has the id of R.id.container
Next Create settings_screen_layout which should look something like this
<?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="match_parent"
android:background="#color/colorPrimary"
android:orientation="vertical">
<ListView android:id="#android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
Note that you need a listview with the "#android:id/list" which will act as container for your preferences
In your SettingFragment Override onCreateView like this
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
addPreferencesFromResource(R.xml.prefrences);
View view = inflater.inflate(R.layout.preference_screen_layout, container, false);
return view;
}
and do the transaction
getFragmentManager().beginTransaction()
.replace(R.id.container, new SettingFragment)
.commit();
After updating my header text and image in NavigationView header, I'm getting duplicate value in NavigationView header.
Here is my code part
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
boolean doubleBackToExitPressedOnce = false;
SQLiteHelper dbHelper;
String setName, setMail;
AlertDialog.Builder builder, builder_verify;
public static int count = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
dbHelper = new SQLiteHelper(getApplicationContext());
builder_verify = new AlertDialog.Builder(this);
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);
View hView = navigationView.inflateHeaderView(R.layout.nav_header_main);
ImageView iv = (ImageView) hView.findViewById(R.id.imageView);
TextView headerName = (TextView) hView.findViewById(R.id.txtName);
TextView headerMail = (TextView) hView.findViewById(R.id.textEmail);
iv.setImageResource(R.drawable.logo);
headerName.setText("TEST");
headerMail.setText("test#gmail.com");
}
}
In the above code i have added view to update my header text. Also i have added main XML code below
<?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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<FrameLayout
android:id="#+id/flContent"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<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>
Also added navigation header layout
nav_header_main.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="#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="#drawable/logo"/>
<TextView
android:id="#+id/txtName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/nav_header_vertical_spacing"
android:text="Sample"
android:textAppearance="#style/TextAppearance.AppCompat.Body2"
android:textStyle="bold" />
<TextView
android:id="#+id/textEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Sample Inc." /></LinearLayout>
Also i have added the screenshot for reference
Right now, I don't see any possibilities of changing the headerview. Any suggestions to avoid duplicate header text and image?
Many thanks!
Good question.
The fix is to instead of inflating header(it's already inflated!) by navigationView.inflateHeaderView(R.layout.nav_header_main); get it from NavigationView via getHeaderView(int index) method and then fill it.
Here's the code to run:
navigationView.setNavigationItemSelectedListener(this);
View hView = navigationView.getHeaderView(0);
ImageView iv = (ImageView) hView.findViewById(R.id.imageView);
TextView headerName = (TextView) hView.findViewById(R.id.txtName);
TextView headerMail = (TextView) hView.findViewById(R.id.txtEmail);
iv.setImageResource(R.drawable.logo);
In xml fie you have already set
app:headerLayout="#layout/nav_header_main"
for NavigationView and again in java class you'r inflating your view with
View hView = navigationView.inflateHeaderView(R.layout.nav_header_main);
So there is a duplicate values in NavigationView.
I have a easy solution for this issue and it is worked for me.
Before adding header views we must remove current header views from navigation drawer. This is the code snippet.
if (navigationView != null) {
for (int i = 0; i < navigationView.getHeaderCount(); i++) {
if (navigationView.getHeaderView(i) != null)
navigationView.getHeaderView(i).setVisibility(View.GONE);
}
addHeaderLayout(navigationView);
}
I have an activity in which upon loading I want to update a textfield. That textfield is stored in a header for that activity's layout in an external XML file. When trying to set text pointed at that XML file, I get a nullpointer exception.
Here is the activity in which I am using:
public class NavDrawerMain extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
//JAC - need to add big search box right at the top of the drawer
//stuff for the user Timeline
private CustomAdapter timelineAdapter;
private ListView timelineList;
private PullToRefreshView mPullToRefreshView;
public static final int REFRESH_DELAY = 2000;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_nav_drawer_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();
}
});
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);
TextView userName = (TextView) findViewById(R.id.drawerUserName);
userName.setText("test");
Here is the layout for that activity:
<RelativeLayout
android:layout_width="match_parent"
android:background="#e5e5e5"
android:layout_height="wrap_content">
<com.yalantis.phoenix.PullToRefreshView
android:id="#+id/pull_to_refresh"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="#+id/timeListView"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:divider="#null"
android:dividerHeight="0dp"/>
</com.yalantis.phoenix.PullToRefreshView>
</RelativeLayout>
<include layout="#layout/app_bar_nav_drawer_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_nav_drawer_main"
app:menu="#menu/activity_nav_drawer_main_drawer" />
and lastly here is the external xml file that houses the TextView that I want to change. This file is the header of the activity's xml file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="#dimen/nav_header_height"
android:background="#drawable/side_nav_bar"
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" android:orientation="vertical"
android:gravity="bottom">
android:id="+id/RelativeLayout1"
<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" android:id="#+id/imageView" />
<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:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="android.studio#android.com" android:id="#+id/drawerUserName" />
the textviews id is drawerUserName. I had read somewhere that I need to inflate the layout but haven't been able to figure it out.
In your activity inflate header_layout like this
View headerView = LayoutInflater.from(this).inflate(R.layout.header_layout, null);
TextView userName = (TextView) headerView.findViewById(R.id.drawerUserName);
userName.setText("test");
Now add it as a HeaderView to NavigationView
navigationView.addHeaderView(headerView);
And that should be it!
For smiliar question check;
NavigationView how to handle dynamic header content
I'm trying to develop an app with multiple activities and the same navigation drawer and toolbar.
I've created a BaseActivity for initialization of drawer and other activities extend it, but I have problems with toolbar, in particular when using setSupportActionBar(toolbar).
How can I fix this problem?
BaseActivity.java
public abstract class BaseActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout drawer;
private ActionBarDrawerToggle toggle;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResourceId());
}
protected abstract int getLayoutResourceId();
public void initDrawer() {
drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toggle = new ActionBarDrawerToggle(
(Activity) this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.setDrawerIndicatorEnabled(true);
toggle.syncState();
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.food) {
final Intent intent = new Intent(this, FoodDiary.class);
startActivity(intent);
}
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<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>
</RelativeLayout>
app_bar_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
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:layout_width="match_parent"
android:layout_height="match_parent" android:fitsSystemWindows="true"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
FoodDiary.java
public class FoodDiary extends BaseActivity {
#Override
protected int getLayoutResourceId() {
return R.layout.content_fooddiary;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initDrawer();
...
}
content_fooddiary.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
<Space
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="0.5"/>
<ImageView
android:layout_width="30dp"
android:layout_height="match_parent"
android:id="#+id/imageView"
android:src="#drawable/left2"/>
</LinearLayout>
You can't use same Navigation Drawer and Toolbar with different Activities.
If you want different screens with the same components, you have to use Fragments with one Activity, for example FragmentActivity.