Example usage for android.text.method TransformationMethod getTransformation

Introduction

In this page you can find the example usage for android.text.method TransformationMethod getTransformation.

Prototype

public CharSequence getTransformation(CharSequence source, View view);

Source Link

Document

Returns a CharSequence that is a transformation of the source text -- for example, replacing each character with a dot in a password field.

Usage

From source file:android.support.v7.widget.AppCompatTextViewAutoSizeHelper.java

private boolean suggestedSizeFitsInSpace(int suggestedSizeInPx, RectF availableSpace) {
    CharSequence text = mTextView.getText();
    TransformationMethod transformationMethod = mTextView.getTransformationMethod();
    if (transformationMethod != null) {
        CharSequence transformedText = transformationMethod.getTransformation(text, mTextView);
        if (transformedText != null) {
            text = transformedText;//from  w  w  w .  java2  s  . c o  m
        }
    }

    final int maxLines = Build.VERSION.SDK_INT >= 16 ? mTextView.getMaxLines() : -1;
    if (mTempTextPaint == null) {
        mTempTextPaint = new TextPaint();
    } else {
        mTempTextPaint.reset();
    }
    mTempTextPaint.set(mTextView.getPaint());
    mTempTextPaint.setTextSize(suggestedSizeInPx);

    // Needs reflection call due to being private.
    Layout.Alignment alignment = invokeAndReturnWithDefault(mTextView, "getLayoutAlignment",
            Layout.Alignment.ALIGN_NORMAL);
    final StaticLayout layout = Build.VERSION.SDK_INT >= 23
            ? createStaticLayoutForMeasuring(text, alignment, Math.round(availableSpace.right), maxLines)
            : createStaticLayoutForMeasuringPre23(text, alignment, Math.round(availableSpace.right));
    // Lines overflow.
    if (maxLines != -1 && (layout.getLineCount() > maxLines
            || (layout.getLineEnd(layout.getLineCount() - 1)) != text.length())) {
        return false;
    }

    // Height overflow.
    if (layout.getHeight() > availableSpace.bottom) {
        return false;
    }

    return true;
}

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