Android 开发报错 Comparison method violates its general contract!
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在做图片排序的时候,想按照图片名称来进行排序,自定义了一个比较器,之前没有问题,最近突然闪退,查看log就发现了Comparison method violates its general contract!这样一个提示,google了一圈发现是自定义compator的compare()方法实现的问题,说是jdk 7的sort函数的实现变了,造成了这个问题,但是我根本没改过jdk啊。。。具体改变大家自行研究,这里就说两种方法来修复异常吧。
方法一:在设置比较器之前,添加这样一行代码:
System.setProperty("java.util.Arrays.useLegacyMergeSort", "true");
方法二:修改比较方法的返回值,将其改为Integer或者Long等数据类型的compareTo方法,如:
new Comparator<Integer>() { @Override public int compare(Integer o1, Integer o2) { // return o1 > o2 ? 1 : -1; return o1.compareTo(o2);// 正确的方式 } }
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- Android 开发报错 Comparison method violates its general contract!
- Comparison method violates its general contract 解决办法
- Comparison method violates its general contract
- Comparison method violates its general contract
- Comparison method violates its general contract!
- Comparison method violates its general contract!
- Comparison method violates its general contract
- Comparison method violates its general contract!
- Comparison method violates its general contract!
- Comparison method violates its general contract!
- Comparison method violates its general contract
- Comparison method violates its general contract!
- Exception:Comparison method violates its general contract!
- Comparison method violates its general contract Exception
- Comparison method violates its general contract!
- Comparison method violates its general contract!
- Comparison method violates its general contract!
- Comparison method violates its general contract!
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