Merge pull request #7 from swapnil1104/completion_callback

Completion callback

Author: swapnil1104

app/src/main/java/com/broooapps/otpedittext/MainActivity.java

@@ -5,13 +5,27 @@
 import android.view.View;
 import android.widget.EditText;
 import android.widget.TextView;
+import android.widget.Toast;
+
+import com.broooapps.otpedittext2.OnCompleteListener;
+import com.broooapps.otpedittext2.OtpEditText;
 
 public class MainActivity extends AppCompatActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        OtpEditText editText = findViewById(R.id.top);
+
+        editText.setOnCompleteListener(new OnCompleteListener() {
+            @Override
+            public void onComplete(String value) {
+                Toast.makeText(MainActivity.this, "Completed " + value, Toast.LENGTH_SHORT).show();
+            }
+        });
+
     }
 
     public void displayText(View view) {

otpedittext2/src/main/java/com/broooapps/otpedittext2/OnCompleteListener.java

@@ -0,0 +1,11 @@
+package com.broooapps.otpedittext2;
+
+/**
+ * Created by Swapnil Tiwari on 2019-07-28.
+ * swapnil.tiwari@box8.in
+ */
+public interface OnCompleteListener {
+
+    void onComplete(String value);
+
+}

otpedittext2/src/main/java/com/broooapps/otpedittext2/OtpEditText.java

@@ -51,6 +51,8 @@ public class OtpEditText extends AppCompatEditText {
     private final String SQUARE_BOX = "square_box";
     private final String ROUNDED_UNDERLINE = "rounded_underline";
 
+    private OnCompleteListener completeListener;
+
     public OtpEditText(Context context) {
         super(context);
     }
@@ -228,6 +230,11 @@ protected void onDraw(Canvas canvas) {
                 } else {
                     canvas.drawText(text, i, i + 1, middle - textWidths[0] / 2, mLineSpacing, getPaint());
                 }
+                if (i + 1 == mNumChars) {
+                    if (completeListener != null) {
+                        completeListener.onComplete(String.valueOf(getText()));
+                    }
+                }
             }
 
             if (mSpace < 0) {
@@ -263,4 +270,8 @@ private void updateColorForLines(boolean next, boolean current) {
             mStrokePaint.setColor(mPrimaryColor);
         }
     }
+
+    public void setOnCompleteListener(OnCompleteListener listener) {
+        completeListener = listener;
+    }
 }

readme.md

@@ -106,6 +106,20 @@ app:oev_mask_character="ø"
 
 P.S. Please note that, in case of masking with a special character other than `*`, specify string with length one, otherwise the input string will be truncated to length 1.
 
+### OnComplete callback for the View
+To implement an OnComplete callback, use `setOnCompleteListener` setter method and pass on an interface implementation.
+eg:
+```
+editText.setOnCompleteListener(new OnCompleteListener() {
+        @Override
+        public void onComplete(String value) {
+            Toast.makeText(MainActivity.this, "Completed " + value, Toast.LENGTH_SHORT).show();
+        }
+    });
+```
+
+This callback will be triggered when the number of characters is equal to the `android:maxLength` value.
+
 ## For optimum usage; Please note.
 * Specify `android:textSize` according to your needs.
 * Specify `android:padding` according to your needs, there are no paddings drawn by default.