View difference between Paste ID: e6WyrwSN and KibS3Tt0

 import java.util.ArrayList;
 import java.util.List;
 
 import android.content.Context;
 import android.graphics.Paint;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.util.TypedValue;
 import android.view.ViewGroup.LayoutParams;
-import android.widget.TextView;
+
 import android.widget.TextView;
 
 /**
  * This class builds a new android Widget named AutoFitText which can be used instead of a TextView
  * to have the text font size in it automatically fit to match the screen width. Credits go largely
  * to Dunni, gjpc, gregm and speedplane from Stackoverflow, method has been (style-) optimized and
  * rewritten to match android coding standards and our MBC. This version upgrades the original
  * "AutoFitTextView" to now also be adaptable to height and to accept the different TextView types
  * (Button, TextClock etc.)
  *
  * @author pheuschk
  * @createDate: 18.04.2013
  */
 @SuppressWarnings("unused")
 public class AutoFitText extends TextView {
 
     /** Global min and max for text size. Remember: values are in pixels! */
     private final int MIN_TEXT_SIZE = 10;
     private final int MAX_TEXT_SIZE = 400;
 
     /** Flag for singleLine */
     private boolean mSingleLine = false;
 
     /**
      * A dummy {@link TextView} to test the text size without actually showing anything to the user
      */
     private TextView mTestView;
 
     /**
      * A dummy {@link Paint} to test the text size without actually showing anything to the user
      */
     private Paint mTestPaint;
 
     /**
      * Scaling factor for fonts. It's a method of calculating independently (!) from the actual
      * density of the screen that is used so users have the same experience on different devices. We
      * will use DisplayMetrics in the Constructor to get the value of the factor and then calculate
      * SP from pixel values
      */
     private final float mScaledDensityFactor;
 
     /**
      * Defines how close we want to be to the factual size of the Text-field. Lower values mean
      * higher precision but also exponentially higher computing cost (more loop runs)
      */
     private final float mThreshold = 0.5f;
 
     /**
      * Constructor for call without attributes --> invoke constructor with AttributeSet null
      *
      * @param context
      */
     public AutoFitText(Context context) {
         this(context, null);
     }
 
     public AutoFitText(Context context, AttributeSet attrs) {
         super(context, attrs);
 
         mScaledDensityFactor = context.getResources().getDisplayMetrics().scaledDensity;
         mTestView = new TextView(context);
 
         mTestPaint = new Paint();
         mTestPaint.set(this.getPaint());
 
         this.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
 
             @Override
             public void onGlobalLayout() {
                 // make an initial call to onSizeChanged to make sure that refitText is triggered
                 onSizeChanged(AutoFitText.this.getWidth(), AutoFitText.this.getHeight(), 0, 0);
                 // Remove the LayoutListener immediately so we don't run into an infinite loop
                 AutoFitText.this.getViewTreeObserver().removeOnGlobalLayoutListener(this);
             }
         });
     }
 
     /**
      * Main method of this widget. Resizes the font so the specified text fits in the text box
      * assuming the text box has the specified width. This is done via a dummy text view that is
      * refit until it matches the real target width and height up to a certain threshold factor
      *
      * @param targetFieldWidth
      *            The width that the TextView currently has and wants filled
      * @param targetFieldHeight
      *            The width that the TextView currently has and wants filled
      */
     private void refitText(String text, int targetFieldWidth, int targetFieldHeight) {
 
         // Variables need to be visible outside the loops for later use. Remember size is in pixels
         float lowerTextSize = MIN_TEXT_SIZE;
         float upperTextSize = MAX_TEXT_SIZE;
 
         // Force the text to wrap. In principle this is not necessary since the dummy TextView
         // already does this for us but in rare cases adding this line can prevent flickering
         this.setMaxWidth(targetFieldWidth);
 
         // Padding should not be an issue since we never define it programmatically in this app
         // but just to to be sure we cut it off here
         targetFieldWidth = targetFieldWidth - this.getPaddingLeft() - this.getPaddingRight();
         targetFieldHeight = targetFieldHeight - this.getPaddingTop() - this.getPaddingBottom();
 
         // Initialize the dummy with some params (that are largely ignored anyway, but this is
         // mandatory to not get a NullPointerException)
         mTestView.setLayoutParams(new LayoutParams(targetFieldWidth, targetFieldHeight));
 
         // maxWidth is crucial! Otherwise the text would never line wrap but blow up the width
         mTestView.setMaxWidth(targetFieldWidth);
 
         if (mSingleLine) {
             // the user requested a single line. This is very easy to do since we primarily need to
             // respect the width, don't have to break, don't have to measure...
 
             /*************************** Converging algorithm 1 ***********************************/
             for (float testSize; (upperTextSize - lowerTextSize) > mThreshold;) {
 
                 // Go to the mean value...
                 testSize = (upperTextSize + lowerTextSize) / 2;
 
                 mTestView.setTextSize(TypedValue.COMPLEX_UNIT_SP, testSize / mScaledDensityFactor);
                 mTestView.setText(text);
                 mTestView.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
 
                 if (mTestView.getMeasuredWidth() >= targetFieldWidth) {
                     upperTextSize = testSize; // Font is too big, decrease upperSize
                 }
                 else {
                     lowerTextSize = testSize; // Font is too small, increase lowerSize
                 }
             }
             /**************************************************************************************/
 
             // In rare cases with very little letters and width > height we have vertical overlap!
             mTestView.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
 
             if (mTestView.getMeasuredHeight() > targetFieldHeight) {
                 upperTextSize = lowerTextSize;
                 lowerTextSize = MIN_TEXT_SIZE;
 
                 /*************************** Converging algorithm 1.5 *****************************/
                 for (float testSize; (upperTextSize - lowerTextSize) > mThreshold;) {
 
                     // Go to the mean value...
                     testSize = (upperTextSize + lowerTextSize) / 2;
 
                     mTestView.setTextSize(TypedValue.COMPLEX_UNIT_SP, testSize
                             / mScaledDensityFactor);
                     mTestView.setText(text);
                     mTestView.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
 
                     if (mTestView.getMeasuredHeight() >= targetFieldHeight) {
                         upperTextSize = testSize; // Font is too big, decrease upperSize
                     }
                     else {
                         lowerTextSize = testSize; // Font is too small, increase lowerSize
                     }
                 }
                 /**********************************************************************************/
             }
         }
         else {
 
             /*********************** Converging algorithm 2 ***************************************/
             // Upper and lower size converge over time. As soon as they're close enough the loop
             // stops
             // TODO probe the algorithm for cost (ATM possibly O(n^2)) and optimize if possible
             for (float testSize; (upperTextSize - lowerTextSize) > mThreshold;) {
 
                 // Go to the mean value...
                 testSize = (upperTextSize + lowerTextSize) / 2;
 
                 // ... inflate the dummy TextView by setting a scaled textSize and the text...
                 mTestView.setTextSize(TypedValue.COMPLEX_UNIT_SP, testSize / mScaledDensityFactor);
                 mTestView.setText(text);
 
                 // ... call measure to find the current values that the text WANTS to occupy
                 mTestView.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
                 int tempHeight = mTestView.getMeasuredHeight();
                 // int tempWidth = mTestView.getMeasuredWidth();
 
                 // LOG.debug("Measured: " + tempWidth + "x" + tempHeight);
                 // LOG.debug("TextSize: " + testSize / mScaledDensityFactor);
 
                 // ... decide whether those values are appropriate.
                 if (tempHeight >= targetFieldHeight) {
                     upperTextSize = testSize; // Font is too big, decrease upperSize
                 }
                 else {
                     lowerTextSize = testSize; // Font is too small, increase lowerSize
                 }
             }
             /**************************************************************************************/
 
             // It is possible that a single word is wider than the box. The Android system would
             // wrap this for us. But if you want to decide fo yourself where exactly to break or to
             // add a hyphen or something than you're going to want to implement something like this:
             mTestPaint.setTextSize(lowerTextSize);
 	    List<String> words = new ArrayList<String>();
 
             for (String s : text.split(" ")) {
                 Log.i("tag", "Word: " + s);
                 words.add(s);
             }
 	    for (String word : words) {
                 if (mTestPaint.measureText(word) >= targetFieldWidth) {
                     List<String> pieces = new ArrayList<String>();
                     // pieces = breakWord(word, mTestPaint.measureText(word), targetFieldWidth);
 
                     // Add code to handle the pieces here...
                 }
             }
         }
 
         /**
          * We are now at most the value of threshold away from the actual size. To rather undershoot
          * than overshoot use the lower value. To match different screens convert to SP first. See
          * {@link http://developer.android.com/guide/topics/resources/more-resources.html#Dimension}
          * for more details
          */
         this.setTextSize(TypedValue.COMPLEX_UNIT_SP, lowerTextSize / mScaledDensityFactor);
         return;
     }
 
     /**
      * This method receives a call upon a change in text content of the TextView. Unfortunately it
      * is also called - among others - upon text size change which means that we MUST NEVER CALL
      * {@link #refitText(String)} from this method! Doing so would result in an endless loop that
      * would ultimately result in a stack overflow and termination of the application
      *
      * So for the time being this method does absolutely nothing. If you want to notify the view of
      * a changed text call {@link #setText(CharSequence)}
      */
     @Override
     protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
         // Super implementation is also intentionally empty so for now we do absolutely nothing here
         super.onTextChanged(text, start, lengthBefore, lengthAfter);
     }
 
     @Override
     protected void onSizeChanged(int width, int height, int oldWidth, int oldHeight) {
         if (width != oldWidth && height != oldHeight) {
             refitText(this.getText().toString(), width, height);
         }
     }
 
     /**
      * This method is guaranteed to be called by {@link TextView#setText(CharSequence)} immediately.
      * Therefore we can safely add our modifications here and then have the parent class resume its
      * work. So if text has changed you should always call {@link TextView#setText(CharSequence)} or
      * {@link TextView#setText(CharSequence, BufferType)} if you know whether the {@link BufferType}
      * is normal, editable or spannable. Note: the method will default to {@link BufferType#NORMAL}
      * if you don't pass an argument.
      */
     @Override
     public void setText(CharSequence text, BufferType type) {
 
         int targetFieldWidth = this.getWidth();
         int targetFieldHeight = this.getHeight();
 
         if (targetFieldWidth <= 0 || targetFieldHeight <= 0 || text.equals("")) {
             // Log.v("tag", "Some values are empty, AutoFitText was not able to construct properly");
         }
         else {
             refitText(text.toString(), targetFieldWidth, targetFieldHeight);
         }
         super.setText(text, type);
     }
 
     /**
      * TODO add sensibility for {@link #setMaxLines(int)} invocations
      */
     @Override
     public void setMaxLines(int maxLines) {
         // TODO Implement support for this. This could be relatively easy. The idea would probably
         // be to manipulate the targetHeight in the refitText-method and then have the algorithm do
         // its job business as usual. Nonetheless, remember the height will have to be lowered
         // dynamically as the font size shrinks so it won't be a walk in the park still
         if (maxLines == 1) {
             this.setSingleLine(true);
         }
         else {
             throw new UnsupportedOperationException(
                     "MaxLines != 1 are not implemented in AutoFitText yet, use TextView instead");
         }
     }
 
     @Override
     public void setSingleLine(boolean singleLine) {
         // save the requested value in an instance variable to be able to decide later
         mSingleLine = singleLine;
         super.setSingleLine(singleLine);
     }
 }