このメソッドを使用すると、sdCard状態を確認できます。トーストダイアログを言語に変更してください:
** MEDIA_MOUNTED_READ_ONLYで気をつけてください。不要でSDカードに書いて、私はそこにUSB経由で実際のデバイス上でデバッグするすべての仲間の初心者のために真**
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;
}
ですAndroid携帯電話あなた根ざしまたは非根ざし電話を使用していますか? –