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<p>&#160;&#160;&#160; 今天遇到了一個小bug，在對ArrayList操作時出現了java.util.ConcurrentModificationException異常。原來是arrary在遍歷時，是不能刪除其中的對象的。

for(MediaFeedData item : Items){ if(mBlackList.containsKey(Long.toString(item.getUser().getId()))){ Items.remove(item); } }

<style type="text/css"> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }</style>

<p>&#160; 后改成下面代碼即可</p>

<pre class="csharpcode"> ArraryList&lt;MediaFeedData &gt; templist = <span class="kwrd">new</span> ArraryList&lt;MediaFeedData &gt;(); <span class="kwrd">for</span>(MediaFeedData item : Items){ <span class="kwrd">if</span>(mBlackList.containsKey(Long.toString(item.getUser().getId()))){ templist.add(item); } } Items.removeall(templist);</pre>

<style type="text/css"> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }</style>

轉載于:https://my.oschina.net/speedinghzl/blog/186510

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