本文实例讲述了Android实现获取SD卡总容量,可用大小,机身内存总容量及可用大小的方法。分享给大家供大家参考,具体如下:
可能有的同学不知道系统已经提供了获取获取SD卡总容量,可用大小,机身内存总容量及可用大小的系统方法,用系统源代码提供的方法可以很简单,方便的获取其大小。这里我把系统源代码中的一个方法贴出来,供大家参考一下:
图片:
图片上红色方框中的代码就是源代码中获取SD卡大小的程序方法。
在这里我整理了一下,我把我整理封装好的方法给大家贴出来:
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/**
* 获得SD卡总大小
*
* @return
*/
private String getSDTotalSize() {
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long totalBlocks = stat.getBlockCount();
return Formatter.formatFileSize(MainActivity. this , blockSize * totalBlocks);
}
/**
* 获得sd卡剩余容量,即可用大小
*
* @return
*/
private String getSDAvailableSize() {
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
return Formatter.formatFileSize(MainActivity. this , blockSize * availableBlocks);
}
/**
* 获得机身内存总大小
*
* @return
*/
private String getRomTotalSize() {
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long totalBlocks = stat.getBlockCount();
return Formatter.formatFileSize(MainActivity. this , blockSize * totalBlocks);
}
/**
* 获得机身可用内存
*
* @return
*/
private String getRomAvailableSize() {
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
return Formatter.formatFileSize(MainActivity. this , blockSize * availableBlocks);
}
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希望本文所述对大家Android程序设计有所帮助。