Provide animation when auto-scaling the font-size
Bug: 15287699
Change-Id: I5e7c5c3bdc96200efa6b4c6f221148647ff91e76
diff --git a/src/com/android/calculator2/CalculatorEditText.java b/src/com/android/calculator2/CalculatorEditText.java
index e31d571..63a5ae5 100644
--- a/src/com/android/calculator2/CalculatorEditText.java
+++ b/src/com/android/calculator2/CalculatorEditText.java
@@ -30,6 +30,7 @@
import android.view.MenuItem;
import android.view.MotionEvent;
import android.widget.EditText;
+import android.widget.TextView;
public class CalculatorEditText extends EditText {
@@ -60,6 +61,7 @@
private final float mStepTextSize;
private int mWidthConstraint = -1;
+ private OnTextSizeChangeListener mOnTextSizeChangeListener;
public CalculatorEditText(Context context) {
this(context, null);
@@ -126,6 +128,20 @@
setTextSize(TypedValue.COMPLEX_UNIT_PX, getVariableTextSize(text.toString()));
}
+ @Override
+ public void setTextSize(int unit, float size) {
+ final float oldTextSize = getTextSize();
+ super.setTextSize(unit, size);
+
+ if (mOnTextSizeChangeListener != null && getTextSize() != oldTextSize) {
+ mOnTextSizeChangeListener.onTextSizeChanged(this, oldTextSize);
+ }
+ }
+
+ public void setOnTextSizeChangeListener(OnTextSizeChangeListener listener) {
+ mOnTextSizeChangeListener = listener;
+ }
+
public float getVariableTextSize(String text) {
if (mWidthConstraint < 0 || mMaximumTextSize <= mMinimumTextSize) {
// Not measured, bail early.
@@ -167,4 +183,8 @@
final FontMetricsInt fontMetrics = getPaint().getFontMetricsInt();
return super.getCompoundPaddingBottom() - Math.min(getPaddingBottom(), fontMetrics.descent);
}
+
+ public interface OnTextSizeChangeListener {
+ void onTextSizeChanged(TextView textView, float oldSize);
+ }
}