このメソッドを使用して、de sdCard の状態を確認できます。トースト ダイアログを自分の言語に変更します。
** MEDIA_MOUNTED_READ_ONLY に注意してください。SDCardに書き込む必要はなく、trueを返します**
public static Boolean comprobarSDCard(Context mContext) {
String auxSDCardStatus = Environment.getExternalStorageState();
if (auxSDCardStatus.equals(Environment.MEDIA_MOUNTED))
return true;
else if (auxSDCardStatus.equals(Environment.MEDIA_MOUNTED_READ_ONLY)) {
Toast.makeText(
mContext,
"Warning, the SDCard it's only in read mode.\nthis does not result in malfunction"
+ " of the read aplication", Toast.LENGTH_LONG)
.show();
return true;
} else if (auxSDCardStatus.equals(Environment.MEDIA_NOFS)) {
Toast.makeText(
mContext,
"Error, the SDCard can be used, it has not a corret format or "
+ "is not formated.", Toast.LENGTH_LONG)
.show();
return false;
} else if (auxSDCardStatus.equals(Environment.MEDIA_REMOVED)) {
Toast.makeText(
mContext,
"Error, the SDCard is not found, to use the reader you need "
+ "insert a SDCard on the device.",
Toast.LENGTH_LONG).show();
return false;
} else if (auxSDCardStatus.equals(Environment.MEDIA_SHARED)) {
Toast.makeText(
mContext,
"Error, the SDCard is not mounted beacuse is using "
+ "connected by USB. Plug out and try again.",
Toast.LENGTH_LONG).show();
return false;
} else if (auxSDCardStatus.equals(Environment.MEDIA_UNMOUNTABLE)) {
Toast.makeText(
mContext,
"Error, the SDCard cant be mounted.\nThe may be happend when the SDCard is corrupted "
+ "or crashed.", Toast.LENGTH_LONG).show();
return false;
} else if (auxSDCardStatus.equals(Environment.MEDIA_UNMOUNTED)) {
Toast.makeText(
mContext,
"Error, the SDCArd is on the device but is not mounted."
+ "Mount it before use the app.",
Toast.LENGTH_LONG).show();
return false;
}
return true;
}