android - Cannot wrap blockquote-like TextView of arbitrary line count by width -
i need render quote block of arbitrary length. text must aligned left, while block aligned right, similar one: 
for i'm trying textview android:width="wrap_content", android:gravity="start", , android:layout_gravity="end". however, works expected when text fits single line — if text longer that, textview behaves this:
- 1st quote block sentence spaces — devours parent's width;
- 2nd block — spaces non-breaking:
raw persistence may be only option other than giving up entirely.— still block behavesmatch_parent. - 3rd block uses explicit line break — looks closest what's required, that's least flexible option, , there's still padding on right.
here's layout (paddingright replaced layout_marginright highlight purpose — behavior same either way):
<linearlayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="end" android:textappearance="@style/textappearance.appcompat.body1" android:linespacingextra="3.5dp" android:paddingleft="24dp" android:layout_marginright="24dp" android:text="raw persistence may option other giving entirely." /> <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="end" android:textappearance="@style/textappearance.appcompat.body1" android:linespacingextra="3.5dp" android:paddingleft="24dp" android:layout_marginright="24dp" android:text="raw persistence may be only option other than giving up entirely." /> <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="end" android:textappearance="@style/textappearance.appcompat.body1" android:linespacingextra="3.5dp" android:paddingleft="24dp" android:layout_marginright="24dp" android:text="@string/raw persistence may option\nother giving entirely." /> </linearlayout> is there way lay out adequately, without having resort multiple strings different device width etc? =\
ok, after examination of textview's code put solution need:
package com.actinarium.persistence.common; import android.annotation.targetapi; import android.content.context; import android.os.build; import android.text.layout; import android.util.attributeset; import android.widget.textview; public class blockquotetextview extends textview { public blockquotetextview(context context) { super(context); } public blockquotetextview(context context, attributeset attrs) { super(context, attrs); } public blockquotetextview(context context, attributeset attrs, int defstyleattr) { super(context, attrs, defstyleattr); } @targetapi(build.version_codes.lollipop) public blockquotetextview(context context, attributeset attrs, int defstyleattr, int defstyleres) { super(context, attrs, defstyleattr, defstyleres); } @override protected void onmeasure(int widthmeasurespec, int heightmeasurespec) { super.onmeasure(widthmeasurespec, heightmeasurespec); // fix width float max = 0; layout layout = getlayout(); (int = 0, size = layout.getlinecount(); < size; i++) { final float linewidth = layout.getlinemax(i); if (linewidth > max) { max = linewidth; } } final int height = getmeasuredheight(); final int width = (int) math.ceil(max) + getcompoundpaddingleft() + getcompoundpaddingright(); setmeasureddimension(width, height); } } the default implementation of onmeasure not take line widths account unless broken down \n's (code). used getlinemax instead of getlinewidth because latter measured trailing whitespace — culprit of misalignment in block #3 in original post.
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