Android：在内部存储中保存两个具有相同名称的位图 [英] Android: Save two Bitmaps with same name in internal storage

问题描述

如果我在内部存储中保存名为picture.jpg的位图，稍后我会保存另一个名为picture.jpg的位图，那么会发生什么呢？
第二个Bitmap会覆盖第一个Bitmap还是有两个同名的Bitmaps？

If I save a Bitmap called "picture.jpg" in internal storage and some steps later I save another Bitmap called "picture.jpg" too, what happens then? Does the second Bitmap overwrite the first or are there two Bitmaps with the same name then?

推荐答案

它会显示你错了，我建议你可以使用动态文件名或在保存前删除它，在动态的情况下，你可以使用这样的东西：

It will show you an error, I suggest you could use a dynamic file name or delete it before saving, in the case of dynamic, you could use something like this:

static int fCount = 0;

File file = new File(Environment.getExternalStorageDirectory()
                    + File.separator + "/test" + String.valueOf(fCount++) +".jpg" );

或

File file = new File(getExternalCacheDir(), "test.jpg" ); if (file.exists()) { boolean deleted = file.delete(); }

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