DAY 8 : REMEMBER SYNTAX TO CALL AN ACTION IN ACTIVITY

HELLO BUDDS!!!

WELCOME BACK HERE!!!

I HAVE SOLUTION FOR ALL THE ACTIONS WHICH WILL BE CALL IN ACTIVIT'Y/IES!!!

1. Register Activity : [AndroidManifest.xml]

            <activity android:name=".SecondActivity" android:label="@string/app_name">

      </activity>

2. Create An Intent : [<activityClassNAme.java>]

      startActivity(new Intent("second"));

3. Button: [<activityClassNAme.java>]

            Button mybtn=(Button)findViewById(R.id.button);

4. ClickListener:[<activityClassNAme.java>]

      1. after "extends Activity" "implements OnClickListene"

     

      2. mybtn.setOnClickListener(this);

      // outside function & inside activity class

      public void onClick(View v) {

            startActivity(new Intent("second"));     

      }

5. SecondActivity:[<activityClassNAme.java>]

            @Override

            protected void onCreate(Bundle savedInstanceState) {

                        super.onCreate(savedInstanceState);

                        setContentView(R.layout.second);

            }

6. ListView:

            1.  import android.app.ListActivity;

      2. extends ListActivity{  //not Activity this time

      3. String str[]={"One","Two"};

          setListAdapter(new ArrayAdapter<String>(this,           R.layout.main,R.id.label,str));

      4. [in "main.xml" at "res->layout->"]

            <TextView  …..

             /TextView>

7. Toast

      Toast.makeText(this,”Your Message”,Toast.Length_Short).show();

8. Alert

      AlertDialog.Builder alert = new AlertDialog.Builder(AlertDemoActivity.this);

      alert.setTitle("My Alert of Tsunami");

      alert.setMessage("No need to worry about Tsunami. It's Safe.");

      alert.setIcon(R.drawable.geekslab_icon);

      alert.show();

All the codes can be found in given applications