Android activity restart

问题:

I am having a confusion in restarting an activity.. I have two function that works well for the same task. Please guide me which is best and why?

public void restart()   
    {  
        Intent intent = getIntent();  
        overridePendingTransition(0, 0);  
        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);  
        finish();  
        overridePendingTransition(R.anim.fade,R.anim.fade);
        startActivity(intent);

    }

or

public void restart()   
    {         
        onCreate();  
    }  

Thanks In advance?

回答1:

I think this is a cleaner way for your requirement.

    Intent intent = getIntent();
    overridePendingTransition(0, 0);
    intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
    finish();
    overridePendingTransition(0, 0);
    startActivity(intent);

回答2:

Activities in the system are managed as an activity stack. When a new activity is started, it is placed on the top of the stack and becomes the running activity -- the previous activity always remains below it in the stack, and will not come to the foreground again until the new activity exits.

for more info see Activity

回答3:

This has been posted before:

Intent intent = getIntent();
finish();
startActivity(intent);