以下为原代码：

import com.avos.avoscloud.AVUser; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.os.Handler; public class WelcomeActivity extends Activity {
     Handler handler = new Handler();    Runnable runnable = new Runnable() {
        public void run() {
           Intent intent = new Intent(WelcomeActivity.this, LoginActivity.class);          startActivity(intent);          finish();       }    };    Runnable runnable1 = new Runnable() {
        public void run() {
           Intent intent = new Intent(WelcomeActivity.this, MainActivity.class);          startActivity(intent);          finish();       }    };    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);       setContentView(R.layout.activity_welcome);       AVUser currentUser = AVUser.getCurrentUser();         if (currentUser != null) {
              // 跳转到首页            handler.postDelayed(runnable1, 2000);         } else {
              //缓存用户对象为空时，可打开用户注册界面…            handler.postDelayed(runnable, 2000);         }    } }

 

 

经过测试，发现if 语句使用不对，应该有else语句

TODO Auto-generated method stub太多,执行起来会有提示