摘要：
1 public class SDCardHelper { 2 3 // 判断SD卡是否被挂载 4 public static boolean isSDCardMounted() { 5 // return Environment.getExternalStorageState().equals(" 阅读全文
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摘要：
1 public class SDCardHelper { 2 3 // 判断SD卡是否被挂载 4 public static boolean isSDCardMounted() { 5 // return Environment.getExternalStorageState().equals(" 阅读全文
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