Event onClick Button

Solution 1: If you use a button in code.

btn1 = (Button) findViewById(R.id.button1);

              btn1.setOnClickListener(new OnClickListener() {

                    

                     @Override

                     public void onClick(View v) {

                           // TODO Auto-generated method stub

                Toast.makeText(MainActivity.this, qResult, Toast.LENGTH_LONG).show();

                     }

              });

Solution 2: If you use many button

public class MainActivity extends Activity implements OnClickListener {  

btnRegister.setOnClickListener(this);

              btnView.setOnClickListener(this);

              btnCancel.setOnClickListener(this);

}

@Override

       public void onClick(View v) {

              // TODO Auto-generated method stub

              switch (v.getId()) {

              case R.id.btnRegister:

                     break;

                    

              case R.id.btnView:

                    

                     break;

              case R.id.btnCancel:

               

                     break;

              default:

                     break;

              }

       }

Solution 3: Listener event onClick quickly.

In XML file

<Button

        android:id="@+id/btActivity1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Button Next"

        android:onClick="Click" />

In java file

@Override

                     public void Click(View v) {

                          

      

                     }

              });

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Nguyễn Văn Duy

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