org.solovyev.android.view

Class AutoResizeTextView

java.lang.Object

android.view.View

android.widget.TextView

org.solovyev.android.view.AutoResizeTextView

All Implemented Interfaces:

android.graphics.drawable.Drawable.Callback, android.view.accessibility.AccessibilityEventSource, android.view.KeyEvent.Callback, android.view.ViewTreeObserver.OnPreDrawListener

public class AutoResizeTextView
extends android.widget.TextView

Text view that auto adjusts text size to fit within the view. If the text size equals the minimum text size and still does not fit, append with an ellipsis.

Since:

Apr 4, 2011

Author:

Chase Colburn

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	AutoResizeTextView.OnTextResizeListener

Nested classes/interfaces inherited from class android.widget.TextView

android.widget.TextView.BufferType, android.widget.TextView.OnEditorActionListener, android.widget.TextView.SavedState

Nested classes/interfaces inherited from class android.view.View

android.view.View.AccessibilityDelegate, android.view.View.BaseSavedState, android.view.View.DragShadowBuilder, android.view.View.MeasureSpec, android.view.View.OnAttachStateChangeListener, android.view.View.OnClickListener, android.view.View.OnCreateContextMenuListener, android.view.View.OnDragListener, android.view.View.OnFocusChangeListener, android.view.View.OnGenericMotionListener, android.view.View.OnHoverListener, android.view.View.OnKeyListener, android.view.View.OnLayoutChangeListener, android.view.View.OnLongClickListener, android.view.View.OnSystemUiVisibilityChangeListener, android.view.View.OnTouchListener

Field Summary

Fields

Modifier and Type	Field and Description
static float	MIN_TEXT_SIZE

Fields inherited from class android.view.View

ALPHA, DRAWING_CACHE_QUALITY_AUTO, DRAWING_CACHE_QUALITY_HIGH, DRAWING_CACHE_QUALITY_LOW, EMPTY_STATE_SET, ENABLED_FOCUSED_SELECTED_STATE_SET, ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, ENABLED_FOCUSED_STATE_SET, ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET, ENABLED_SELECTED_STATE_SET, ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET, ENABLED_STATE_SET, ENABLED_WINDOW_FOCUSED_STATE_SET, FIND_VIEWS_WITH_CONTENT_DESCRIPTION, FIND_VIEWS_WITH_TEXT, FOCUS_BACKWARD, FOCUS_DOWN, FOCUS_FORWARD, FOCUS_LEFT, FOCUS_RIGHT, FOCUS_UP, FOCUSABLES_ALL, FOCUSABLES_TOUCH_MODE, FOCUSED_SELECTED_STATE_SET, FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, FOCUSED_STATE_SET, FOCUSED_WINDOW_FOCUSED_STATE_SET, GONE, HAPTIC_FEEDBACK_ENABLED, IMPORTANT_FOR_ACCESSIBILITY_AUTO, IMPORTANT_FOR_ACCESSIBILITY_NO, IMPORTANT_FOR_ACCESSIBILITY_YES, INVISIBLE, KEEP_SCREEN_ON, LAYER_TYPE_HARDWARE, LAYER_TYPE_NONE, LAYER_TYPE_SOFTWARE, MEASURED_HEIGHT_STATE_SHIFT, MEASURED_SIZE_MASK, MEASURED_STATE_MASK, MEASURED_STATE_TOO_SMALL, NO_ID, OVER_SCROLL_ALWAYS, OVER_SCROLL_IF_CONTENT_SCROLLS, OVER_SCROLL_NEVER, PRESSED_ENABLED_FOCUSED_SELECTED_STATE_SET, PRESSED_ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_FOCUSED_STATE_SET, PRESSED_ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_SELECTED_STATE_SET, PRESSED_ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_STATE_SET, PRESSED_ENABLED_WINDOW_FOCUSED_STATE_SET, PRESSED_FOCUSED_SELECTED_STATE_SET, PRESSED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_FOCUSED_STATE_SET, PRESSED_FOCUSED_WINDOW_FOCUSED_STATE_SET, PRESSED_SELECTED_STATE_SET, PRESSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_WINDOW_FOCUSED_STATE_SET, ROTATION, ROTATION_X, ROTATION_Y, SCALE_X, SCALE_Y, SCREEN_STATE_OFF, SCREEN_STATE_ON, SCROLLBAR_POSITION_DEFAULT, SCROLLBAR_POSITION_LEFT, SCROLLBAR_POSITION_RIGHT, SCROLLBARS_INSIDE_INSET, SCROLLBARS_INSIDE_OVERLAY, SCROLLBARS_OUTSIDE_INSET, SCROLLBARS_OUTSIDE_OVERLAY, SELECTED_STATE_SET, SELECTED_WINDOW_FOCUSED_STATE_SET, SOUND_EFFECTS_ENABLED, STATUS_BAR_HIDDEN, STATUS_BAR_VISIBLE, SYSTEM_UI_FLAG_FULLSCREEN, SYSTEM_UI_FLAG_HIDE_NAVIGATION, SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN, SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION, SYSTEM_UI_FLAG_LAYOUT_STABLE, SYSTEM_UI_FLAG_LOW_PROFILE, SYSTEM_UI_FLAG_VISIBLE, SYSTEM_UI_LAYOUT_FLAGS, TEXT_ALIGNMENT_INHERIT, TEXT_ALIGNMENT_RESOLVED_DEFAULT, TRANSLATION_X, TRANSLATION_Y, VIEW_LOG_TAG, VISIBLE, WINDOW_FOCUSED_STATE_SET, X, Y

Constructor Summary

Constructors

Constructor and Description
AutoResizeTextView(android.content.Context context)
AutoResizeTextView(android.content.Context context, android.util.AttributeSet attrs)
AutoResizeTextView(android.content.Context context, android.util.AttributeSet attrs, int defStyle)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	getAddEllipsis() Return flag to add ellipsis to text that overflows at the smallest text size
float	getMinTextSize() Return lower text size limit
protected void	onLayout(boolean changed, int left, int top, int right, int bottom) Resize text after measuring
protected void	onSizeChanged(int w, int h, int oldw, int oldh) If the text view size changed, set the force resize flag to true
protected void	onTextChanged(CharSequence text, int start, int before, int after) When text changes, set the force resize flag to true and resetInterpreter the text size.
void	resizeText() Resize the text size with default width and height
void	setAddEllipsis(boolean addEllipsis) Set flag to add ellipsis to text that overflows at the smallest text size
void	setLineSpacing(float add, float mult) Override the set line spacing to update our internal reference values
void	setMinTextSize(float minTextSize) Set the lower text size limit and invalidate the view
void	setOnResizeListener(AutoResizeTextView.OnTextResizeListener listener) Register listener to receive resize notifications
void	setTextSize(int unit, float size) Override the set text size to update our internal reference values

Methods inherited from class android.widget.TextView

addTextChangedListener, append, append, beginBatchEdit, bringPointIntoView, cancelLongPress, clearComposingText, computeHorizontalScrollRange, computeScroll, computeVerticalScrollExtent, computeVerticalScrollRange, debug, didTouchFocusSelect, drawableStateChanged, endBatchEdit, extractText, findViewsWithText, getAutoLinkMask, getBaseline, getBottomPaddingOffset, getCompoundDrawablePadding, getCompoundDrawables, getCompoundPaddingBottom, getCompoundPaddingLeft, getCompoundPaddingRight, getCompoundPaddingTop, getCurrentHintTextColor, getCurrentTextColor, getCustomSelectionActionModeCallback, getDefaultEditable, getDefaultMovementMethod, getEditableText, getEllipsize, getError, getExtendedPaddingBottom, getExtendedPaddingTop, getFilters, getFocusedRect, getFreezesText, getGravity, getHighlightColor, getHint, getHintTextColors, getImeActionId, getImeActionLabel, getImeOptions, getIncludeFontPadding, getInputExtras, getInputType, getKeyListener, getLayout, getLeftFadingEdgeStrength, getLeftPaddingOffset, getLineBounds, getLineCount, getLineHeight, getLineSpacingExtra, getLineSpacingMultiplier, getLinksClickable, getLinkTextColors, getMarqueeRepeatLimit, getMaxEms, getMaxHeight, getMaxLines, getMaxWidth, getMinEms, getMinHeight, getMinLines, getMinWidth, getMovementMethod, getOffsetForPosition, getPaint, getPaintFlags, getPrivateImeOptions, getRightFadingEdgeStrength, getRightPaddingOffset, getSelectionEnd, getSelectionStart, getShadowColor, getShadowDx, getShadowDy, getShadowRadius, getText, getTextColor, getTextColors, getTextColors, getTextScaleX, getTextSize, getTopPaddingOffset, getTotalPaddingBottom, getTotalPaddingLeft, getTotalPaddingRight, getTotalPaddingTop, getTransformationMethod, getTypeface, getUrls, hasOverlappingRendering, hasSelection, invalidateDrawable, isCursorVisible, isInputMethodTarget, isPaddingOffsetRequired, isSuggestionsEnabled, isTextSelectable, jumpDrawablesToCurrentState, length, moveCursorToVisibleOffset, onAttachedToWindow, onBeginBatchEdit, onCheckIsTextEditor, onCommitCompletion, onCommitCorrection, onCreateDrawableState, onCreateInputConnection, onDetachedFromWindow, onDragEvent, onDraw, onEditorAction, onEndBatchEdit, onFinishTemporaryDetach, onFocusChanged, onGenericMotionEvent, onInitializeAccessibilityEvent, onInitializeAccessibilityNodeInfo, onKeyDown, onKeyMultiple, onKeyPreIme, onKeyShortcut, onKeyUp, onMeasure, onPopulateAccessibilityEvent, onPreDraw, onPrivateIMECommand, onRestoreInstanceState, onSaveInstanceState, onScreenStateChanged, onScrollChanged, onSelectionChanged, onStartTemporaryDetach, onTextContextMenuItem, onTouchEvent, onTrackballEvent, onVisibilityChanged, onWindowFocusChanged, performLongClick, removeTextChangedListener, resetResolvedDrawables, resolveDrawables, sendAccessibilityEvent, setAllCaps, setAutoLinkMask, setCompoundDrawablePadding, setCompoundDrawables, setCompoundDrawablesWithIntrinsicBounds, setCompoundDrawablesWithIntrinsicBounds, setCursorVisible, setCustomSelectionActionModeCallback, setEditableFactory, setEllipsize, setEms, setEnabled, setError, setError, setExtractedText, setFilters, setFrame, setFreezesText, setGravity, setHeight, setHighlightColor, setHint, setHint, setHintTextColor, setHintTextColor, setHorizontallyScrolling, setImeActionLabel, setImeOptions, setIncludeFontPadding, setInputExtras, setInputType, setKeyListener, setLines, setLinksClickable, setLinkTextColor, setLinkTextColor, setMarqueeRepeatLimit, setMaxEms, setMaxHeight, setMaxLines, setMaxWidth, setMinEms, setMinHeight, setMinLines, setMinWidth, setMovementMethod, setOnEditorActionListener, setPadding, setPaddingRelative, setPaintFlags, setPrivateImeOptions, setRawInputType, setScroller, setSelectAllOnFocus, setSelected, setShadowLayer, setSingleLine, setSingleLine, setSpannableFactory, setText, setText, setText, setText, setText, setTextAppearance, setTextColor, setTextColor, setTextIsSelectable, setTextKeepState, setTextKeepState, setTextScaleX, setTextSize, setTransformationMethod, setTypeface, setTypeface, setWidth, verifyDrawable

Methods inherited from class android.view.View

addChildrenForAccessibility, addFocusables, addFocusables, addOnAttachStateChangeListener, addOnLayoutChangeListener, addTouchables, animate, announceForAccessibility, awakenScrollBars, awakenScrollBars, awakenScrollBars, bringToFront, buildDrawingCache, buildDrawingCache, buildLayer, callOnClick, canScrollHorizontally, canScrollVertically, checkInputConnectionProxy, clearAnimation, clearFocus, combineMeasuredStates, computeHorizontalScrollExtent, computeHorizontalScrollOffset, computeVerticalScrollOffset, createAccessibilityNodeInfo, createContextMenu, destroyDrawingCache, dispatchConfigurationChanged, dispatchDisplayHint, dispatchDragEvent, dispatchDraw, dispatchGenericFocusedEvent, dispatchGenericMotionEvent, dispatchGenericPointerEvent, dispatchHoverEvent, dispatchKeyEvent, dispatchKeyEventPreIme, dispatchKeyShortcutEvent, dispatchPopulateAccessibilityEvent, dispatchRestoreInstanceState, dispatchSaveInstanceState, dispatchSetActivated, dispatchSetPressed, dispatchSetSelected, dispatchSystemUiVisibilityChanged, dispatchTouchEvent, dispatchTrackballEvent, dispatchUnhandledMove, dispatchVisibilityChanged, dispatchWindowFocusChanged, dispatchWindowSystemUiVisiblityChanged, dispatchWindowVisibilityChanged, draw, findFocus, findViewById, findViewWithTag, fitSystemWindows, focusSearch, forceLayout, getAccessibilityNodeProvider, getAlpha, getAnimation, getApplicationWindowToken, getBackground, getBottom, getBottomFadingEdgeStrength, getCameraDistance, getContentDescription, getContext, getContextMenuInfo, getDefaultSize, getDrawableState, getDrawingCache, getDrawingCache, getDrawingCacheBackgroundColor, getDrawingCacheQuality, getDrawingRect, getDrawingTime, getFilterTouchesWhenObscured, getFitsSystemWindows, getFocusables, getGlobalVisibleRect, getGlobalVisibleRect, getHandler, getHeight, getHitRect, getHorizontalFadingEdgeLength, getHorizontalScrollbarHeight, getId, getImportantForAccessibility, getKeepScreenOn, getKeyDispatcherState, getLayerType, getLayoutParams, getLeft, getLocalVisibleRect, getLocationInWindow, getLocationOnScreen, getMatrix, getMeasuredHeight, getMeasuredHeightAndState, getMeasuredState, getMeasuredWidth, getMeasuredWidthAndState, getMinimumHeight, getMinimumWidth, getNextFocusDownId, getNextFocusForwardId, getNextFocusLeftId, getNextFocusRightId, getNextFocusUpId, getOnFocusChangeListener, getOverScrollMode, getPaddingBottom, getPaddingLeft, getPaddingRight, getPaddingTop, getParent, getParentForAccessibility, getPivotX, getPivotY, getResources, getRight, getRootView, getRotation, getRotationX, getRotationY, getScaleX, getScaleY, getScrollBarDefaultDelayBeforeFade, getScrollBarFadeDuration, getScrollBarSize, getScrollBarStyle, getScrollX, getScrollY, getSolidColor, getSuggestedMinimumHeight, getSuggestedMinimumWidth, getSystemUiVisibility, getTag, getTag, getTop, getTopFadingEdgeStrength, getTouchables, getTouchDelegate, getTranslationX, getTranslationY, getVerticalFadingEdgeLength, getVerticalScrollbarPosition, getVerticalScrollbarWidth, getViewTreeObserver, getVisibility, getWidth, getWindowAttachCount, getWindowSystemUiVisibility, getWindowToken, getWindowVisibility, getWindowVisibleDisplayFrame, getX, getY, hasFocus, hasFocusable, hasOnClickListeners, hasTransientState, hasWindowFocus, inflate, initializeFadingEdge, initializeScrollbars, invalidate, invalidate, invalidate, isActivated, isClickable, isDirty, isDrawingCacheEnabled, isDuplicateParentStateEnabled, isEnabled, isFocusable, isFocusableInTouchMode, isFocused, isHapticFeedbackEnabled, isHardwareAccelerated, isHorizontalFadingEdgeEnabled, isHorizontalScrollBarEnabled, isHovered, isInEditMode, isInTouchMode, isLayoutRequested, isLongClickable, isOpaque, isPressed, isSaveEnabled, isSaveFromParentEnabled, isScrollbarFadingEnabled, isScrollContainer, isSelected, isShown, isSoundEffectsEnabled, isVerticalFadingEdgeEnabled, isVerticalScrollBarEnabled, layout, measure, mergeDrawableStates, offsetLeftAndRight, offsetTopAndBottom, onAnimationEnd, onAnimationStart, onConfigurationChanged, onCreateContextMenu, onDisplayHint, onDrawScrollBars, onFilterTouchEventForSecurity, onFinishInflate, onHoverChanged, onHoverEvent, onKeyLongPress, onOverScrolled, onSetAlpha, onWindowSystemUiVisibilityChanged, onWindowVisibilityChanged, overScrollBy, performAccessibilityAction, performClick, performHapticFeedback, performHapticFeedback, playSoundEffect, post, postDelayed, postInvalidate, postInvalidate, postInvalidateDelayed, postInvalidateDelayed, postInvalidateOnAnimation, postInvalidateOnAnimation, postOnAnimation, postOnAnimationDelayed, refreshDrawableState, removeCallbacks, removeOnAttachStateChangeListener, removeOnLayoutChangeListener, requestFitSystemWindows, requestFocus, requestFocus, requestFocus, requestFocusFromTouch, requestLayout, requestRectangleOnScreen, requestRectangleOnScreen, resolveSize, resolveSizeAndState, restoreHierarchyState, saveHierarchyState, scheduleDrawable, scrollBy, scrollTo, sendAccessibilityEventUnchecked, setAccessibilityDelegate, setActivated, setAlpha, setAnimation, setBackground, setBackgroundColor, setBackgroundDrawable, setBackgroundResource, setBottom, setCameraDistance, setClickable, setContentDescription, setDrawingCacheBackgroundColor, setDrawingCacheEnabled, setDrawingCacheQuality, setDuplicateParentStateEnabled, setFadingEdgeLength, setFilterTouchesWhenObscured, setFitsSystemWindows, setFocusable, setFocusableInTouchMode, setHapticFeedbackEnabled, setHasTransientState, setHorizontalFadingEdgeEnabled, setHorizontalScrollBarEnabled, setHovered, setId, setImportantForAccessibility, setKeepScreenOn, setLayerType, setLayoutParams, setLeft, setLongClickable, setMeasuredDimension, setMinimumHeight, setMinimumWidth, setNextFocusDownId, setNextFocusForwardId, setNextFocusLeftId, setNextFocusRightId, setNextFocusUpId, setOnClickListener, setOnCreateContextMenuListener, setOnDragListener, setOnFocusChangeListener, setOnGenericMotionListener, setOnHoverListener, setOnKeyListener, setOnLongClickListener, setOnSystemUiVisibilityChangeListener, setOnTouchListener, setOverScrollMode, setPivotX, setPivotY, setPressed, setRight, setRotation, setRotationX, setRotationY, setSaveEnabled, setSaveFromParentEnabled, setScaleX, setScaleY, setScrollBarDefaultDelayBeforeFade, setScrollBarFadeDuration, setScrollbarFadingEnabled, setScrollBarSize, setScrollBarStyle, setScrollContainer, setScrollX, setScrollY, setSoundEffectsEnabled, setSystemUiVisibility, setTag, setTag, setTop, setTouchDelegate, setTranslationX, setTranslationY, setVerticalFadingEdgeEnabled, setVerticalScrollBarEnabled, setVerticalScrollbarPosition, setVisibility, setWillNotCacheDrawing, setWillNotDraw, setX, setY, showContextMenu, startActionMode, startAnimation, startDrag, unscheduleDrawable, unscheduleDrawable, willNotCacheDrawing, willNotDraw

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MIN_TEXT_SIZE

public static final float MIN_TEXT_SIZE

See Also:

Constant Field Values

Constructor Detail

AutoResizeTextView

public AutoResizeTextView(android.content.Context context)

AutoResizeTextView

public AutoResizeTextView(android.content.Context context,
                  android.util.AttributeSet attrs)

AutoResizeTextView

public AutoResizeTextView(android.content.Context context,
                  android.util.AttributeSet attrs,
                  int defStyle)

Method Detail

onTextChanged

protected void onTextChanged(CharSequence text,
                 int start,
                 int before,
                 int after)

When text changes, set the force resize flag to true and resetInterpreter the text size.

Overrides:

onTextChanged in class android.widget.TextView

onSizeChanged

protected void onSizeChanged(int w,
                 int h,
                 int oldw,
                 int oldh)

If the text view size changed, set the force resize flag to true

Overrides:

onSizeChanged in class android.view.View

setOnResizeListener

public void setOnResizeListener(AutoResizeTextView.OnTextResizeListener listener)

Register listener to receive resize notifications

Parameters:

listener -

setTextSize

public void setTextSize(int unit,
               float size)

Override the set text size to update our internal reference values

Overrides:

setTextSize in class android.widget.TextView

setLineSpacing

public void setLineSpacing(float add,
                  float mult)

Override the set line spacing to update our internal reference values

Overrides:

setLineSpacing in class android.widget.TextView

setMinTextSize

public void setMinTextSize(float minTextSize)

Set the lower text size limit and invalidate the view

Parameters:

minTextSize -

getMinTextSize

public float getMinTextSize()

Return lower text size limit

Returns:

setAddEllipsis

public void setAddEllipsis(boolean addEllipsis)

Set flag to add ellipsis to text that overflows at the smallest text size

Parameters:

addEllipsis -

getAddEllipsis

public boolean getAddEllipsis()

Return flag to add ellipsis to text that overflows at the smallest text size

Returns:

onLayout

protected void onLayout(boolean changed,
            int left,
            int top,
            int right,
            int bottom)

Resize text after measuring

Overrides:

onLayout in class android.widget.TextView

resizeText

public void resizeText()

Resize the text size with default width and height