enforce minimum spend / deposits

app/src/main/java/io/lbry/browser/dialog/RepostClaimDialogFragment.java

@@ -231,6 +231,11 @@ public class RepostClaimDialogFragment extends BottomSheetDialogFragment impleme
             showError(getString(R.string.insufficient_balance));
             return;
         }
+        if (bid.doubleValue() < Helper.MIN_DEPOSIT) {
+            String message = getResources().getQuantityString(R.plurals.min_deposit_required, 2, String.valueOf(Helper.MIN_DEPOSIT));
+            showError(message);
+            return;
+        }
 
         Claim channel = (Claim) channelSpinner.getSelectedItem();
         if (channel == null) {

app/src/main/java/io/lbry/browser/dialog/SendTipDialogFragment.java

@@ -12,7 +12,6 @@ import android.view.ViewGroup;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 
-import androidx.core.content.ContextCompat;
 import androidx.core.text.HtmlCompat;
 
 import com.google.android.material.bottomsheet.BottomSheetDialogFragment;
@@ -21,7 +20,6 @@ import com.google.android.material.snackbar.Snackbar;
 import com.google.android.material.textfield.TextInputEditText;
 
 import java.math.BigDecimal;
-import java.text.DecimalFormat;
 
 import io.lbry.browser.MainActivity;
 import io.lbry.browser.R;
@@ -113,6 +111,10 @@ public class SendTipDialogFragment extends BottomSheetDialogFragment implements
                     showError(getString(R.string.insufficient_balance));
                     return;
                 }
+                if (amount.doubleValue() < Helper.MIN_SPEND) {
+                    showError(getString(R.string.min_spend_required));
+                    return;
+                }
 
                 SupportCreateTask task = new SupportCreateTask(claim.getClaimId(), amount, true, sendProgress, new GenericTaskHandler() {
                     @Override

app/src/main/java/io/lbry/browser/ui/channel/ChannelFormFragment.java

@@ -140,7 +140,6 @@ public class ChannelFormFragment extends BaseFragment implements
         Context context = getContext();
         FlexboxLayoutManager flm1 = new FlexboxLayoutManager(context);
         FlexboxLayoutManager flm2 = new FlexboxLayoutManager(context);
-        FlexboxLayoutManager flm3 = new FlexboxLayoutManager(context);
         addedTagsList = root.findViewById(R.id.form_added_tags);
         addedTagsList.setLayoutManager(flm1);
         suggestedTagsList = root.findViewById(R.id.form_suggested_tags);
@@ -326,7 +325,7 @@ public class ChannelFormFragment extends BaseFragment implements
             showError(getString(R.string.please_enter_valid_deposit));
             return;
         }
-        if (depositAmount == 0) {
+        if (depositAmount < Helper.MIN_DEPOSIT) {
             String error = getResources().getQuantityString(R.plurals.min_deposit_required, depositAmount == 1 ? 1 : 2, String.valueOf(Helper.MIN_DEPOSIT));
             showError(error);
             return;

app/src/main/java/io/lbry/browser/ui/wallet/WalletFragment.java

@@ -407,6 +407,7 @@ public class WalletFragment extends BaseFragment implements SdkStatusListener, W
 
     private void sendCredits() {
         // wallet_send task
+        View view = getView();
         String recipientAddress = Helper.getValue(inputSendAddress.getText());
         String amountString = Helper.getValue(inputSendAmount.getText());
         String amount = null;
@@ -414,13 +415,24 @@ public class WalletFragment extends BaseFragment implements SdkStatusListener, W
             amount = new DecimalFormat(Helper.SDK_AMOUNT_FORMAT, new DecimalFormatSymbols(Locale.US)).
                     format(new BigDecimal(amountString).doubleValue());
         } catch (NumberFormatException ex) {
-            Snackbar.make(getView(), R.string.invalid_amount, Snackbar.LENGTH_LONG).
+            if (view != null) {
+                Snackbar.make(view, R.string.invalid_amount, Snackbar.LENGTH_LONG).
                         setBackgroundTint(Color.RED).setTextColor(Color.WHITE).show();
+            }
+            return;
+        }
+
+
+        double actualSendAmount = Double.valueOf(amount);
+        if (actualSendAmount < Helper.MIN_SPEND) {
+            if (view != null) {
+                Snackbar.make(view, R.string.min_spend_required, Snackbar.LENGTH_LONG).
+                        setBackgroundTint(Color.RED).setTextColor(Color.WHITE).show();
+            }
             return;
         }
 
         disableSendControls();
-        double actualSendAmount = Double.valueOf(amount);
         WalletSendTask task = new WalletSendTask(recipientAddress, amount, walletSendProgress, new WalletSendTask.WalletSendHandler() {
             @Override
             public void onSuccess() {
@@ -428,16 +440,20 @@ public class WalletFragment extends BaseFragment implements SdkStatusListener, W
                 String message = getResources().getQuantityString(
                         R.plurals.you_sent_credits, sentAmount == 1.0 ? 1 : 2,
                         new DecimalFormat("#,###.##").format(sentAmount));
-                Snackbar.make(getView(), message, Snackbar.LENGTH_LONG).show();
+                Helper.setViewText(inputSendAddress, null);
-                inputSendAddress.setText(null);
+                Helper.setViewText(inputSendAmount, null);
-                inputSendAmount.setText(null);
+                if (view != null) {
+                    Snackbar.make(view, message, Snackbar.LENGTH_LONG).show();
+                }
                 enableSendControls();
             }
 
             @Override
             public void onError(Exception error) {
-                Snackbar.make(getView(), R.string.send_credit_error, Snackbar.LENGTH_LONG).
+                if (view != null) {
+                    Snackbar.make(view, R.string.send_credit_error, Snackbar.LENGTH_LONG).
                             setBackgroundTint(Color.RED).setTextColor(Color.WHITE).show();
+                }
                 enableSendControls();
             }
         });

app/src/main/java/io/lbry/browser/utils/Helper.java

@@ -70,6 +70,7 @@ public final class Helper {
     public static final MediaType JSON_MEDIA_TYPE = MediaType.get("application/json; charset=utf-8");
     public static final int CONTENT_PAGE_SIZE = 25;
     public static final double MIN_DEPOSIT = 0.001;
+    public static final double MIN_SPEND = 0.0001;
     public static final String PLAIN_CURRENCY_FORMAT_PATTERN = "####.##";
     public static final String LBC_CURRENCY_FORMAT_PATTERN = "#,###.##";
     public static final String FILE_SIZE_FORMAT_PATTERN = "#,###.#";

app/src/main/res/values/strings.xml

@@ -329,6 +329,7 @@
     <string name="unlock">Unlock</string>
     <string name="unlock_tips">Unlock tips?</string>
     <string name="confirm_unlock_tips">Are you sure you want to unlock all your tips?</string>
+    <string name="min_spend_required">Please enter an amount more than 0.0001 credits.</string>
 
     <plurals name="you_sent_credits">
         <item quantity="one">You sent %1$s credit</item>