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Apps Android Navigation Drawer with activities

devx

devx

Newbie
I downloaded android navigationdrawer project from HERE

And i wanna change ImportFragment to activity and set it in Drawer?

Please if can anyone help me
 
devx said:
I downloaded android navigationdrawer project from HERE

And i wanna change ImportFragment to activity and set it in Drawer?

Please if can anyone help me
Click to expand...

instead of
Code: 
 fm.beginTransaction().replace(R.id.content_frame, new ImportFragment()).commit();
You would use:
Code: 
 Intent i = new Intent(this, ImportActivity.class)
startActivity(i);

Correct me if I am wrong as I am new to coding

-Change
 
I try this but its not working. i cannot run app it closing my second activity is

public class ImportActivity extends Activity {

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_import,container,false);
}
}

Is there something wrong?
 
Do you know why my app not working if i add toolbar in my second activity??
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

I like to have the same look in all activities, do anyone know how create it?

Thx for help
 
What do you mean 'my app not working'? Does it crash?
You've given virtually no code. It's impossible to answer your question, with the lack of information you've given.
 
first.java

Code: 
public class first extends AppCompatActivity {
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.first);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            [USER=1021285]@override[/USER]
            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);

    }
}

first.xml:

Code: 
<?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"
    app:layout_behavior="[USER=696546]@String[/USER]/appbar_scrolling_view_behavior"
    tools:showIn="@layout/app_bar_main">

</RelativeLayout>

app_bar_main.xml:
Code: 
<?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="com.example.sasor.tst.MainActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="[USER=19691]@Style[/USER]/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="[USER=19691]@Style[/USER]/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />
    <include layout="@layout/first" />

    <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="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>

When i try to open my activity, program crash.
 
Last edited:
Can you put your code in [code] tags, and indent it properly please?

Also, if the program crashed, it will have generated a stack trace in the Logcat output. Please show this information.
 
Code: 
01-22 10:30:12.718 358-678/? W/ActivityManager: in case of changing top-activity!![com.example.sasor.tst]
01-22 10:30:12.718 358-678/? I/ActivityManager: START {cmp=com.example.sasor.tst/.first u=0} from pid 24217
01-22 10:30:12.808 24217-24217/? D/AndroidRuntime: Shutting down VM
01-22 10:30:12.808 24217-24217/? W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x410da2a0)
01-22 10:30:12.808 24217-24217/? E/AndroidRuntime: FATAL EXCEPTION: main
                                                   java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.sasor.tst/com.example.sasor.tst.first}: java.lang.NullPointerException
                                                       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2073)
                                                       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2098)
                                                       at android.app.ActivityThread.access$600(ActivityThread.java:138)
                                                       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1204)
                                                       at android.os.Handler.dispatchMessage(Handler.java:99)
                                                       at android.os.Looper.loop(Looper.java:137)
                                                       at android.app.ActivityThread.main(ActivityThread.java:4872)
                                                       at java.lang.reflect.Method.invokeNative(Native Method)
                                                       at java.lang.reflect.Method.invoke(Method.java:511)
                                                       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
                                                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
                                                       at dalvik.system.NativeStart.main(Native Method)
                                                    Caused by: java.lang.NullPointerException
                                                       at com.example.sasor.tst.first.onCreate(first.java:23)
                                                       at android.app.Activity.performCreate(Activity.java:5191)
                                                       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1082)
                                                       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2037)
                                                       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2098)
                                                       at android.app.ActivityThread.access$600(ActivityThread.java:138)
                                                       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1204)
                                                       at android.os.Handler.dispatchMessage(Handler.java:99)
                                                       at android.os.Looper.loop(Looper.java:137)
                                                       at android.app.ActivityThread.main(ActivityThread.java:4872)
                                                       at java.lang.reflect.Method.invokeNative(Native Method)
                                                       at java.lang.reflect.Method.invoke(Method.java:511)
                                                       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
                                                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
                                                       at dalvik.system.NativeStart.main(Native Method)
01-22 10:30:12.818 358-16492/? W/ActivityManager:   Force finishing activity com.example.sasor.tst/.first
01-22 10:30:12.818 358-16492/? W/ActivityManager:   Force finishing activity com.example.sasor.tst/.MainActivity
 
You have a null pointer exception at line 23 in first.java. Looking at your code, I would say that this statement evaluates to null

FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
 
If i do this without button
Code: 
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.first);
    View myView = findViewById(R.id.toolbar);

    Toolbar mtoolbar = (Toolbar) myView.findViewById(R.id.toolbar);
    setSupportActionBar(mtoolbar);

}

i get the same error.
null pointer exception is there:
Toolbar mtoolbar = (Toolbar) myView.findViewById(R.id.toolbar);

but i dont know what to do
 
I think the problem is you have set the content view to R.layout.first, but this layout does not contain a component called R.id.toolbar. So myView gets a value null.
What is the layout XML for activity first?
 
I think its easyer if you tell me how start:)
i create new navigationdrawer project in android studio

MainActivity.java
Code: 
package com.example.sasor.myapplication;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.view.View;
import android.support.design.widget.NavigationView;
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;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {

    @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();
            }
        });

        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) {
            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_camera) {
            // 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
Code: 
<?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>
app_bar_main.xml
Code: 
<?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="com.example.sasor.myapplication.MainActivity">

    <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_main" />

    <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="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>
content_main.xml
Code: 
<?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"
    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.example.sasor.myapplication.MainActivity"
    tools:showIn="@layout/app_bar_main">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!" />
</RelativeLayout>
nav_header_main.xml
Code: 
<?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="@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>

Now i like to know how can i add new activity class which open when i click on drawer item, and it have the same toolbar, and navigation drawer like MainActivity?

And really thx you for your time
 
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