LineHeightSpan.Standard
public
static
class
LineHeightSpan.Standard
extends Object
implements
LineHeightSpan,
ParcelableSpan
| java.lang.Object | |
| ↳ | android.text.style.LineHeightSpan.Standard |
Default implementation of the LineHeightSpan, which changes the line height of the
attached paragraph.
For example, a paragraph with its line height equal to 100px can be set like this:
SpannableString string = new SpannableString("This is a multiline paragraph. This is a multiline paragraph.");
string.setSpan(new LineHeightSpan.Standard(100), 0, string.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
Notice that LineHeightSpan will change the line height of the entire paragraph, even though it covers only part of the paragraph.
Summary
Inherited constants |
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Public constructors | |
|---|---|
Standard(Parcel src)
Constructor called from |
|
Standard(int height)
Set the line height of the paragraph to |
|
Public methods | |
|---|---|
void
|
chooseHeight(CharSequence text, int start, int end, int spanstartv, int lineHeight, Paint.FontMetricsInt fm)
Classes that implement this should define how the height is being calculated. |
int
|
describeContents()
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
int
|
getHeight()
Returns the line height specified by this span. |
int
|
getSpanTypeId()
Return a special type identifier for this span class. |
void
|
writeToParcel(Parcel dest, int flags)
Flatten this object in to a Parcel. |
Inherited methods | |
|---|---|
Public constructors
Standard
public Standard (Parcel src)
Constructor called from TextUtils to restore the span from a parcel
| Parameters | |
|---|---|
src |
Parcel: This value cannot be null. |
Standard
public Standard (int height)
Set the line height of the paragraph to height physical pixels.
| Parameters | |
|---|---|
height |
int: The units of this value are pixels.
Value is 1 or greater |
Public methods
chooseHeight
public void chooseHeight (CharSequence text, int start, int end, int spanstartv, int lineHeight, Paint.FontMetricsInt fm)
Classes that implement this should define how the height is being calculated.
| Parameters | |
|---|---|
text |
CharSequence: This value cannot be null. |
start |
int: the start of the line |
end |
int: the end of the line |
spanstartv |
int: the start of the span |
lineHeight |
int: the line height |
fm |
Paint.FontMetricsInt: This value cannot be null. |
describeContents
public int describeContents ()
Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation. For example, if the object will
include a file descriptor in the output of writeToParcel(android.os.Parcel, int),
the return value of this method must include the
CONTENTS_FILE_DESCRIPTOR bit.
| Returns | |
|---|---|
int |
a bitmask indicating the set of special object types marshaled
by this Parcelable object instance.
Value is either 0 or CONTENTS_FILE_DESCRIPTOR |
getHeight
public int getHeight ()
Returns the line height specified by this span.
The units of this value are pixels.
| Returns | |
|---|---|
int |
The units of this value are pixels. |
getSpanTypeId
public int getSpanTypeId ()
Return a special type identifier for this span class.
| Returns | |
|---|---|
int |
|
writeToParcel
public void writeToParcel (Parcel dest, int flags)
Flatten this object in to a Parcel.
| Parameters | |
|---|---|
dest |
Parcel: The Parcel in which the object should be written.
This value cannot be null. |
flags |
int: Additional flags about how the object should be written.
May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE.
Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |