Deprecating last settings constant

dfu/src/main/java/no/nordicsemi/android/dfu/DfuBaseService.java

@@ -93,6 +93,7 @@ import no.nordicsemi.android.error.GattError;
  * The service will show its progress on the notification bar and will send local broadcasts to the
  * application.
  */
+@SuppressWarnings("deprecation")
 public abstract class DfuBaseService extends IntentService implements DfuProgressInfo.ProgressListener {
 	private static final String TAG = "DfuBaseService";
 
@@ -214,6 +215,12 @@ public abstract class DfuBaseService extends IntentService implements DfuProgres
 	 * <a href="https://github.com/NordicSemiconductor/Android-DFU-Library/issues/71">#71</a>.
 	 */
 	public static final String EXTRA_DISABLE_RESUME = "no.nordicsemi.android.dfu.extra.EXTRA_DISABLE_RESUME";
+	/**
+	 * The MBR size.
+	 *
+	 * @see DfuServiceInitiator#setMbrSize(int)
+	 */
+	public static final String EXTRA_MBR_SIZE = "no.nordicsemi.android.dfu.extra.EXTRA_MBR_SIZE";
 	/**
 	 * This extra allows you to control the MTU that will be requested (on Lollipop or newer devices).
 	 * If the field is null, the service will not request higher MTU and will use MTU = 23
@@ -1108,14 +1115,20 @@ public abstract class DfuBaseService extends IntentService implements DfuProgres
 		// Applications and bootloader starts from bigger address. However, in custom DFU
 		// implementations, user may want to transmit the whole whole data, even from address 0x0000.
 		final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
-		final String value = preferences.getString(DfuSettingsConstants.SETTINGS_MBR_SIZE, String.valueOf(DfuSettingsConstants.SETTINGS_DEFAULT_MBR_SIZE));
-		int mbrSize;
-		try {
-			mbrSize = Integer.parseInt(value);
+		int mbrSize = DfuServiceInitiator.DEFAULT_MBR_SIZE;
+		if (preferences.contains(DfuSettingsConstants.SETTINGS_MBR_SIZE)) {
+			final String value = preferences.getString(DfuSettingsConstants.SETTINGS_MBR_SIZE, String.valueOf(DfuServiceInitiator.DEFAULT_MBR_SIZE));
+			try {
+				mbrSize = Integer.parseInt(value);
+				if (mbrSize < 0)
+					mbrSize = 0;
+			} catch (final NumberFormatException e) {
+				// ignore, default value will be used
+			}
+		} else {
+			mbrSize = intent.getIntExtra(EXTRA_MBR_SIZE, DfuServiceInitiator.DEFAULT_MBR_SIZE);
 			if (mbrSize < 0)
 				mbrSize = 0;
-		} catch (final NumberFormatException e) {
-			mbrSize = DfuSettingsConstants.SETTINGS_DEFAULT_MBR_SIZE;
 		}
 
 		if (foregroundService) {

dfu/src/main/java/no/nordicsemi/android/dfu/DfuServiceInitiator.java

@@ -48,9 +48,10 @@ import java.util.UUID;
  * parameters to the service. The DfuServiceInitiator class may be used to make this process easier.
  * It provides simple API that covers all low lever operations.
  */
-@SuppressWarnings({"WeakerAccess", "unused"})
-public class DfuServiceInitiator {
+@SuppressWarnings({"WeakerAccess", "unused", "deprecation"})
+public final class DfuServiceInitiator {
 	public static final int DEFAULT_PRN_VALUE = 12;
+	public static final int DEFAULT_MBR_SIZE = 0x1000;
 
 	/** Constant used to narrow the scope of the update to system components (SD+BL) only. */
 	public static final int SCOPE_SYSTEM_COMPONENTS = 1;
@@ -80,6 +81,7 @@ public class DfuServiceInitiator {
 	private boolean enableUnsafeExperimentalButtonlessDfu = false;
 	private boolean disableResume = false;
 	private int numberOfRetries = 0; // 0 to be backwards compatible
+	private int mbrSize = DEFAULT_MBR_SIZE;
 
 	private Boolean packetReceiptNotificationsEnabled;
 	private int numberOfPackets = 12;
@@ -374,6 +376,32 @@ public class DfuServiceInitiator {
 		return this;
 	}
 
+	/**
+	 * This method sets the size of an MBR (Master Boot Record). It should be used only
+	 * when updating a file from a HEX file. If you use BIN or ZIP, value set here will
+	 * be ignored.
+	 * <p>
+	 * The MBR size is important for the HEX parser, which has to cut it from the Soft Device's
+	 * HEX before sending it to the DFU target. The MBR can't be updated using DFU, and the
+	 * bootloader expects only the Soft Device bytes. Usually, the Soft Device HEX provided
+	 * by Nordic contains an MBR at addresses 0x0000 to 0x1000.
+	 * 0x1000 is the default size of MBR which will be used.
+	 * <p>
+	 * If you have a HEX file which address start from 0 and want to send the whole BIN content
+	 * from it, you have to set the MBR size to 0, otherwise first 4096 bytes will be cut off.
+	 * <p>
+	 * The value set here will not be used if the {@link DfuSettingsConstants#SETTINGS_MBR_SIZE}
+	 * is set in Shared Preferences.
+	 *
+	 * @param mbrSize the MBR size in bytes. Defaults to 4096 (0x1000) bytes.
+	 * @return the builder
+	 * @see DfuSettingsConstants#SETTINGS_MBR_SIZE
+	 */
+	public DfuServiceInitiator setMbrSize(@IntRange(from = 0) final int mbrSize) {
+		this.mbrSize = mbrSize;
+		return this;
+	}
+
 	/**
 	 * Set this flag to true to enable experimental buttonless feature in Secure DFU. When the
 	 * experimental Buttonless DFU Service is found on a device, the service will use it to
@@ -730,6 +758,7 @@ public class DfuServiceInitiator {
 		intent.putExtra(DfuBaseService.EXTRA_FORCE_DFU, forceDfu);
 		intent.putExtra(DfuBaseService.EXTRA_DISABLE_RESUME, disableResume);
 		intent.putExtra(DfuBaseService.EXTRA_MAX_DFU_ATTEMPTS, numberOfRetries);
+		intent.putExtra(DfuBaseService.EXTRA_MBR_SIZE, mbrSize);
 		if (mtu > 0)
 			intent.putExtra(DfuBaseService.EXTRA_MTU, mtu);
 		intent.putExtra(DfuBaseService.EXTRA_CURRENT_MTU, currentMtu);

dfu/src/main/java/no/nordicsemi/android/dfu/DfuSettingsConstants.java

@@ -24,7 +24,14 @@ package no.nordicsemi.android.dfu;
 
 import android.bluetooth.BluetoothGattCharacteristic;
 
+/**
+ * A collection of constants used for reading DFU constants from
+ * {@link android.preference.PreferenceManager} in previous versions of DFU Library.
+ *
+ * @deprecated Use {@link DfuServiceInitiator} methods instead.
+ */
 @SuppressWarnings("DeprecatedIsStillUsed")
+@Deprecated
 public interface DfuSettingsConstants {
 	/**
 	 * This property must contain a boolean value.
@@ -91,15 +98,12 @@ public interface DfuSettingsConstants {
 	 * If you are using the PC nrf util tool to create a ZIP Distribution Packet with the
 	 * firmware and Init Packet this option does not apply as the nrf tool will convert
 	 * HEX to BIN itself.
+	 *
+	 * @deprecated Use {@link DfuServiceInitiator#setMbrSize(int)} instead.
 	 */
+	@Deprecated
 	String SETTINGS_MBR_SIZE = "settings_mbr_size";
 
-	/**
-	 * The default value of the MBR size.
-	 * @see #SETTINGS_DEFAULT_MBR_SIZE
-	 */
-	int SETTINGS_DEFAULT_MBR_SIZE = 0x1000;
-
 	/**
 	 * This property must contain a boolean value.
 	 * <p>