Click imagebutton go other class

Question

Hello I've got an app and I need help regarding ImageButton.

Code:

protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.social);

        ImageButton img = (ImageButton) findViewById(R.id.imageView1);
        img.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View view) {
                startActivity(new Intent(social.this,facebook.class));
            }   
        });
    }
}

manifest file

   android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />
    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

        </activity>
        <activity android:name="ana"></activity>
         <activity android:name="facebook"></activity>
          <activity android:name="instagram"></activity>
           <activity android:name="pinterest"></activity>
            <activity android:name="twitter"></activity>
             <activity android:name="youtube"></activity>
              <activity android:name="social"></activity>


    </application>

</manifest>

Layout file

<ImageButton
    android:id="@+id/imageButton2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/textView1"
    android:layout_alignTop="@+id/imageButton1"
    android:src="@drawable/fbf" />

<ImageButton
    android:id="@+id/imageButton1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView1"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="30dp"
    android:src="@drawable/aas" />

<ImageButton
    android:id="@+id/imageButton3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignRight="@+id/textView1"
    android:layout_alignTop="@+id/imageButton1"
    android:src="@drawable/yoube" />

<ImageButton
    android:id="@+id/imageButton4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageButton8"
    android:layout_below="@+id/imageButton3"
    android:layout_marginTop="19dp"
    android:src="@drawable/ss" />

<ImageButton
    android:id="@+id/imageButton5"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageButton1"
    android:layout_alignTop="@+id/imageButton4"
    android:src="@drawable/mysp" />

<ImageButton
    android:id="@+id/imageButton6"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageButton2"
    android:layout_alignTop="@+id/imageButton7"
    android:src="@drawable/sc" />

<ImageButton
    android:id="@+id/imageButton7"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageButton5"
    android:layout_below="@+id/imageButton5"
    android:layout_marginTop="14dp"
    android:src="@drawable/tumblr" />

<ImageButton
    android:id="@+id/imageButton8"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageButton3"
    android:layout_alignTop="@+id/imageButton7"
    android:src="@drawable/justinlogo" />

<ImageButton
    android:id="@+id/imageButton9"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageButton2"
    android:layout_alignTop="@+id/imageButton5"
    android:src="@drawable/insta" />

<ImageView
    android:id="@+id/imageView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageButton6"
    android:layout_below="@+id/imageButton6"
    android:layout_marginTop="24dp"
    android:src="@drawable/fbf" />

What I want to do is, when i click the ImageButton it should open facebook class. I made it with normal button but, unlike normal button, its not working with ImageButton.

Its giving error "application stopped" ! someone help me ? Thanks all.

**LOGCAT REPORT ** enter image description here

yes i added activity at manifest and im tried at my phone not on Virtual phone wait i'll try at virtual and write logcat report.thx ur answers — MacSTD, Jul 26 '14 at 09:56

score 0 · Answer 1 · edited May 23 '17 at 12:27

0

Add dot . prefix(dot means your package name. It's more short type of declaration.) in your activities in manifest file,i.e.

<activity android:name=".ana"></activity>
<activity android:name=".facebook"></activity>
<activity android:name=".instagram"></activity>
<activity android:name=".pinterest"></activity>
<activity android:name=".twitter"></activity>
<activity android:name=".youtube"></activity>
<activity android:name=".social"></activity>

And clean your project.

For more info see How to add activity in manifest file

And change

    ImageButton img = (ImageButton) findViewById(R.id.imageView1);

to

ImageButton img = (ImageButton) findViewById(R.id.imageButton1);

Because in social layout file ImageButton id is imageButton1

edited May 23 '17 at 12:27

Community

1
1

answered Jul 26 '14 at 10:13

Giru Bhai

14,370
5
46
74

thnk you sir im trying – MacSTD Jul 26 '14 at 10:20
@MacSTD Ok,also try to clean your project. – Giru Bhai Jul 26 '14 at 10:49
@MacSTD Did you change your code as suggested in answer,also try to clean your project and post complete logcat exception in question because in that link the exception is incomplete. – Giru Bhai Jul 26 '14 at 12:11

Pragnesh Ghoda シ · Answer 2 · 2014-07-26T10:46:17.837

0

ITS NOT A PROPER WAY TO DEFINE CLASS IN ACTIVITY.........

There are some proper mathods to declare Activity Class in MANIFEST If all class files are in same package (main package) define classes like below..

<activity android:name=".ana"></activity>
<activity android:name=".facebook"></activity>
<activity android:name=".instagram"></activity>
<activity android:name=".pinterest"></activity>
<activity android:name=".twitter"></activity>
<activity android:name=".youtube"></activity>
<activity android:name=".social"></activity>

if its in another package define it with package names like

<activity android:name="com.example.package2.social"></activity>

and one another thing that always define CLASS WITH FIRST LETTER CAPITAL..... like Ana or Facebook or Social

Edit :

There is Difference between ImageButton and ImageView.. you are calling wrong ID...

ImageButton img = (ImageButton) findViewById(R.id.imageView1); <-- calling imageview for imagebutton...

it shouldbe like this,,

ImageButton img = (ImageButton) findViewById(R.id.imageButton1);<-- calling imagebutton...

edited Jul 26 '14 at 10:46

answered Jul 26 '14 at 10:17

Pragnesh Ghoda シ

8,318
3
25
40

i tried but neggative.when i click social button its stoping. – MacSTD Jul 26 '14 at 10:27
you were getting typecast error.. see my edited answer – Pragnesh Ghoda シ Jul 26 '14 at 10:46
Ohkk.. thats the NullPointerException........ on line number 15 of facebook.java class file.. – Pragnesh Ghoda シ Jul 28 '14 at 08:57
Ow I was looking class 15 but not error on eclipse if I will write here facebook.class can u tell me what is the problem on my project ? – MacSTD Jul 29 '14 at 20:29
It's webview client line – MacSTD Jul 30 '14 at 06:24

Click imagebutton go other class

2 Answers2