获取系统内存

private String getAvailMemory() {// 获取android当前可用内存大小
ActivityManager am = (ActivityManager)mContext. getSystemService(Context.ACTIVITY_SERVICE);
MemoryInfo mi = new MemoryInfo();
am.getMemoryInfo(mi);
//mi.availMem; 当前系统的可用内存
String ddd= Formatter.formatFileSize(((ContextWrapper) mContext).getBaseContext(), mi.availMem);// 将获取的内存大小规格化
Log.i("wop","可用内存："+ddd);
return ddd;
}

private String getTotalMemory() {
String str1 = "/proc/meminfo";// 系统内存信息文件
String str2;
String[] arrayOfString;
long initial_memory = 0;

try {
FileReader localFileReader = new FileReader(str1);
BufferedReader localBufferedReader = new BufferedReader(
localFileReader, 8192);
str2 = localBufferedReader.readLine();// 读取meminfo第一行，系统总内存大小

arrayOfString = str2.split("\\s+");
for (String num : arrayOfString) {
Log.i(str2, num + "\t");
}

initial_memory = Integer.valueOf(arrayOfString[1]).intValue() * 1024;// 获得系统总内存，单位是KB，乘以1024转换为Byte
localBufferedReader.close();

} catch (IOException e) {
}
String sss=Formatter.formatFileSize(((ContextWrapper) mContext).getBaseContext(), initial_memory);// Byte转换为KB或者MB，内存大小规格化
Log.i("wop","总内存："+sss);
return sss;
}

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