public class BaseActivity extends Activity {    

    protected boolean isDestroy;

    //防止反复点击设置的标志。涉及到点击打开其它Activity时。将该标志设置为false。在onResume事件中设置为true

    private boolean clickable=true;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        isDestroy=false;

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

    }

    @Override

    protected void onDestroy() {

        super.onDestroy();

        isDestroy=true;

    }

    @Override

    protected void onResume() {

        super.onResume();

        //每次返回界面时，将点击标志设置为可点击

        clickable=true;

    }

    /**

     * 当前能否够点击

     * @return

     */

    protected boolean isClickable(){

        return  clickable;

    }

    /**

     * 锁定点击

     */

    protected void lockClick(){

        clickable=false;

    }

    @Override

    public void startActivityForResult(Intent intent, int requestCode, Bundle options) {

        if(isClickable()) {

            lockClick();

            super.startActivityForResult(intent, requestCode,options);

        }

    }

}