Updated on 2026-08-14

app/src/main/java/com/tangem/tap/common/extensions/Specific.kt

@@ -52,4 +52,19 @@ fun BigDecimal.toFiatString(rateValue: BigDecimal): String? {
     return "≈ USD  $fiatValue"
 }
 
-fun BigDecimal.stripZeroPlainString(): String = this.stripTrailingZeros().toPlainString()
+fun BigDecimal.stripZeroPlainString(): String = this.stripTrailingZeros().toPlainString()
+
+fun BigDecimal.isPositive(): Boolean = this.compareTo(BigDecimal.ZERO) == 1
+fun BigDecimal.isNegative(): Boolean = this.compareTo(BigDecimal.ZERO) == -1
+fun BigDecimal.isGreaterThan(value: BigDecimal): Boolean = this.compareTo(value) == 1
+fun BigDecimal.isLessThan(value: BigDecimal): Boolean = this.compareTo(value) == -1
+
+fun BigDecimal.isGreaterThanOrEqual(value: BigDecimal): Boolean {
+    val compareResult = this.compareTo(value)
+    return compareResult == 1 || compareResult == 0
+}
+
+fun BigDecimal.isLessThanOrEqual(value: BigDecimal): Boolean {
+    val compareResult = this.compareTo(value)
+    return compareResult == -1 || compareResult == 0
+}

app/src/main/java/com/tangem/tap/common/extensions/TextView.kt

@@ -27,10 +27,20 @@ fun EditText.update(text: String?) {
     else setSelection(cursorPosition)
 }
 
-fun TextSwitcher.update(text: String?) {
+fun EditText.setOnImeActionListener(action: Int, handler: (EditText) -> Unit) {
+    this.setOnEditorActionListener { view, actionId, event ->
+        if (actionId == action) {
+            handler.invoke(this)
+            return@setOnEditorActionListener true
+        }
+        return@setOnEditorActionListener false
+    }
+}
+
+fun TextSwitcher.update(text: CharSequence?) {
     val textView = this.currentView as? TextView ?: return
 
-    if (textView.text?.toString() != text) this.setText(text)
+    if (textView.text?.toString() != text?.toString()) this.setText(text)
 }
 
 // By default the TextInputLayout didn't activates the error state if the message is empty or null

app/src/main/java/com/tangem/tap/common/extensions/UI.kt

@@ -14,6 +14,7 @@ import android.view.View
 import android.view.ViewGroup
 import android.view.inputmethod.InputMethodManager
 import androidx.annotation.DrawableRes
+import androidx.annotation.StringRes
 import androidx.core.content.ContextCompat
 import androidx.core.text.toSpannable
 import androidx.fragment.app.Fragment
@@ -27,17 +28,26 @@ fun Context.getDrawableCompat(@DrawableRes drawableResId: Int): Drawable? {
     return ContextCompat.getDrawable(this, drawableResId)
 }
 
-fun View.show(show: Boolean) {
-    if (show) this.visibility = View.VISIBLE else this.visibility = View.GONE
+fun View.getString(@StringRes id: Int): String {
+    return context.getString(id)
 }
 
-fun View.show() {
+fun View.show(show: Boolean, invokeBeforeStateChanged: (() -> Unit)? = null) {
+    return if (show) this.show(invokeBeforeStateChanged)
+    else this.hide(invokeBeforeStateChanged)
+}
+
+fun View.show(invokeBeforeStateChanged: (() -> Unit)? = null) {
     if (this.visibility == View.VISIBLE) return
+
+    invokeBeforeStateChanged?.invoke()
     this.visibility = View.VISIBLE
 }
 
-fun View.hide() {
+fun View.hide(invokeBeforeStateChanged: (() -> Unit)? = null) {
     if (this.visibility == View.GONE) return
+
+    invokeBeforeStateChanged?.invoke()
     this.visibility = View.GONE
 }
 

app/src/main/java/com/tangem/tap/common/extensions/ViewGroup.kt

@@ -2,9 +2,11 @@ package com.tangem.tap.common.extensions
 
 import android.view.LayoutInflater
 import android.view.ViewGroup
+import android.view.ViewParent
 import androidx.transition.AutoTransition
 import androidx.transition.Transition
 import androidx.transition.TransitionManager
+import timber.log.Timber
 
 /**
 [REDACTED_AUTHOR]
@@ -16,6 +18,11 @@ fun ViewGroup.inflate(viewToInflate: Int, rootView: ViewGroup?, parent: ViewGrou
     }
 }
 
+fun ViewParent?.beginDelayedTransition(transition: Transition = AutoTransition()) {
+    if (this == null) Timber.e("Can't invoke beginDelayedTransition, because parent is NULL")
+    (this as? ViewGroup)?.beginDelayedTransition(transition)
+}
+
 fun ViewGroup.beginDelayedTransition(transition: Transition = AutoTransition()) {
     TransitionManager.beginDelayedTransition(this, transition)
 }

app/src/main/java/com/tangem/tap/common/redux/AppReducer.kt

@@ -2,8 +2,8 @@ package com.tangem.tap.common.redux
 
 import com.tangem.tap.common.redux.global.globalReducer
 import com.tangem.tap.common.redux.navigation.NavigationReducer
+import com.tangem.tap.features.send.redux.reducers.SendReducer
 import com.tangem.tap.features.details.redux.DetailsReducer
-import com.tangem.tap.features.send.redux.SendReducer
 import com.tangem.tap.features.wallet.redux.WalletReducer
 import org.rekotlin.Action
 

app/src/main/java/com/tangem/tap/common/redux/AppState.kt

@@ -5,8 +5,8 @@ import com.tangem.tap.common.redux.navigation.NavigationState
 import com.tangem.tap.common.redux.navigation.navigationMiddleware
 import com.tangem.tap.features.details.redux.DetailsState
 import com.tangem.tap.features.home.redux.homeMiddleware
-import com.tangem.tap.features.send.redux.SendState
-import com.tangem.tap.features.send.redux.sendMiddleware
+import com.tangem.tap.features.send.redux.middlewares.sendMiddleware
+import com.tangem.tap.features.send.redux.states.SendState
 import com.tangem.tap.features.wallet.redux.WalletState
 import com.tangem.tap.features.wallet.redux.walletMiddleware
 import org.rekotlin.Middleware