AUTOSIZING TEXTVIEW 

HELLO ABOUT ME @kettsun0123 

AUTORESIZING TEXTVIEW AutosizingTextView 

WHAT IS AUTOSIZING TEXTVIEW? AUTOSIZING TEXTVIEW IS… ▸ Android O (API 26) ~ ▸ ϨΠΞ΢τʹ͋ͬͨϑΥϯταΠζΛ ࣗಈͰબఆͯ͘͠ΕΔ ▸ supportϥΠϒϥϦ΋͋ΔΑ 

AUTORESIZING TEXTVIEW ࢖͏ͱ͖ʹؾΛ͚ͭΔ͜ͱ 

AUTOSIZING TEXTVIEW 1. layout_̋̋=“wrap_content” 2. android:singleLine=“true” 

AUTOSIZING TEXTVIEW 1. layout_̋̋=“wrap_content” 2. android:singleLine=“true” 

AUTOSIZING TEXTVIEW layout_height=“wrap_content” 

AUTOSIZING TEXTVIEW 

AUTOSIZING TEXTVIEW layout_width=“wrap_content” 

AUTOSIZING TEXTVIEW 

AUTOSIZING TEXTVIEW 

AUTOSIZING TEXTVIEW if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { // In a fixed-height view, so use our new text layout. if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && mLayoutParams.height != LayoutParams.MATCH_PARENT) { autoSizeText(); invalidate(); return; } // Dynamic height, but height has stayed the same, // so use our new text layout. if (mLayout.getHeight() == oldht && (mHintLayout == null || mHintLayout.getHeight() == oldht)) { autoSizeText(); invalidate(); return; } } TextView.java > checkForRelayout() 

AUTOSIZING TEXTVIEW @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, bottom); if (mDeferScroll >= 0) { int curs = mDeferScroll; mDeferScroll = -1; bringPointIntoView(Math.min(curs, mText.length())); } // Call auto-size after the width and height have been calculated. autoSizeText(); } TextView.java > onLayout(c, l, t, r, b) 

AUTOSIZING TEXTVIEW “wrap_content” 

AUTOSIZING TEXTVIEW 1. layout_̋̋=“wrap_content” 2. android:singleLine=“true” 

AUTOSIZING TEXTVIEW 

AUTOSIZING TEXTVIEW TextView.java > applySingleLine(s, a, c) private void applySingleLine(boolean singleLine, boolean applyTransformation, boolean changeMaxLines) { mSingleLine = singleLine; if (singleLine) { setLines(1); setHorizontallyScrolling(true); ɹɹɹɹ ... 

AUTORESIZING TEXTVIEW android:singleLine=“true” 

CONCLUSION 1. layout_̋̋=“wrap_content” 2. android:singleLine=“true” 

FIN Thanks:)