一個錯誤：當我寫這篇文章的代碼無法解析postDelayed

Question

Runnable run = new Runnable() { 
    @Override 
    public void run() { 
     Log.i("runnable has run","a second must have passed"); 
    } 
}; 
handler.post(run); 

，出現此錯誤：

不能resolve`postDelayed。

請告訴我如何清除。

Answer 1

我想你想延遲使用這段代碼。

Handler handler = new Handler(); 
handler.postDelayed(new Runnable() { 
    @Override 
    public void run() { 
     // do something here 
    } 
}, 1000);