跳转到下一个activity

/*   

        * 第一个跳转代码

         */

         button.setOnClickListener(new OnClickListener() {

                    

                     @Override

                     public void onClick(View v) {

                            Intent intent=new Intent();

                            intent.setClass(MainActivity.this, SecondActivityActivity.class);

                            startActivity(intent);

                            MainActivity.this.finish();

                     }

              }); 

//第二种跳转

button.setOnClickListener(new OnClickListener() {

                    

                     @Override

                     public void onClick(View v) {

                            // TODO Auto-generated method stub

                            Intent intent =new Intent(MainActivity.this, SecondActivityActivity.class);

                            intent.putExtra("MainActivity", "from MainActivity");

                              startActivityForResult(intent, REQUEST_CODE);

                     }

              });