Add View textAlignment

- fix bug #6163772
- use bits field and pack them as much as possible
- take care of "supportsRtl" flag from Manifest
- add visual unit tests

CTS unit tests in another CL

Change-Id: Ib77c4eb423854209af130688c5ef9977401a9c1c

Author: Fabrice Di Meglio

api/current.txt

@@ -596,7 +596,7 @@ package android {
     field public static final int layerType = 16843604; // 0x1010354
     field public static final int layout = 16842994; // 0x10100f2
     field public static final int layoutAnimation = 16842988; // 0x10100ec
-    field public static final int layoutDirection = 16843690; // 0x10103aa
+    field public static final int layoutDirection = 16843691; // 0x10103ab
     field public static final int layout_above = 16843140; // 0x1010184
     field public static final int layout_alignBaseline = 16843142; // 0x1010186
     field public static final int layout_alignBottom = 16843146; // 0x101018a
@@ -618,10 +618,10 @@ package android {
     field public static final int layout_height = 16842997; // 0x10100f5
     field public static final int layout_margin = 16842998; // 0x10100f6
     field public static final int layout_marginBottom = 16843002; // 0x10100fa
-    field public static final int layout_marginEnd = 16843694; // 0x10103ae
+    field public static final int layout_marginEnd = 16843695; // 0x10103af
     field public static final int layout_marginLeft = 16842999; // 0x10100f7
     field public static final int layout_marginRight = 16843001; // 0x10100f9
-    field public static final int layout_marginStart = 16843693; // 0x10103ad
+    field public static final int layout_marginStart = 16843694; // 0x10103ae
     field public static final int layout_marginTop = 16843000; // 0x10100f8
     field public static final int layout_row = 16843643; // 0x101037b
     field public static final int layout_rowSpan = 16843644; // 0x101037c
@@ -717,10 +717,10 @@ package android {
     field public static final int packageNames = 16843649; // 0x1010381
     field public static final int padding = 16842965; // 0x10100d5
     field public static final int paddingBottom = 16842969; // 0x10100d9
-    field public static final int paddingEnd = 16843692; // 0x10103ac
+    field public static final int paddingEnd = 16843693; // 0x10103ad
     field public static final int paddingLeft = 16842966; // 0x10100d6
     field public static final int paddingRight = 16842968; // 0x10100d8
-    field public static final int paddingStart = 16843691; // 0x10103ab
+    field public static final int paddingStart = 16843692; // 0x10103ac
     field public static final int paddingTop = 16842967; // 0x10100d7
     field public static final int panelBackground = 16842846; // 0x101005e
     field public static final int panelColorBackground = 16842849; // 0x1010061
@@ -962,6 +962,7 @@ package android {
     field public static final int tension = 16843370; // 0x101026a
     field public static final int testOnly = 16843378; // 0x1010272
     field public static final int text = 16843087; // 0x101014f
+    field public static final int textAlignment = 16843690; // 0x10103aa
     field public static final int textAllCaps = 16843660; // 0x101038c
     field public static final int textAppearance = 16842804; // 0x1010034
     field public static final int textAppearanceButton = 16843271; // 0x1010207
@@ -23209,6 +23210,7 @@ package android.view {
     method public void buildLayer();
     method public boolean callOnClick();
     method public boolean canResolveLayoutDirection();
+    method public boolean canResolveTextAlignment();
     method public boolean canResolveTextDirection();
     method public boolean canScrollHorizontally(int);
     method public boolean canScrollVertically(int);
@@ -23329,6 +23331,7 @@ package android.view {
     method public float getPivotY();
     method public int getResolvedLayoutDirection();
     method public int getResolvedLayoutDirection(android.graphics.drawable.Drawable);
+    method public int getResolvedTextAlignment();
     method public int getResolvedTextDirection();
     method public android.content.res.Resources getResources();
     method public final int getRight();
@@ -23349,6 +23352,7 @@ package android.view {
     method public int getSystemUiVisibility();
     method public java.lang.Object getTag();
     method public java.lang.Object getTag(int);
+    method public int getTextAlignment();
     method public int getTextDirection();
     method public final int getTop();
     method protected float getTopFadingEdgeStrength();
@@ -23456,6 +23460,8 @@ package android.view {
     method public void onPopulateAccessibilityEvent(android.view.accessibility.AccessibilityEvent);
     method public void onResolvedLayoutDirectionChanged();
     method public void onResolvedLayoutDirectionReset();
+    method public void onResolvedTextAlignmentChanged();
+    method public void onResolvedTextAlignmentReset();
     method public void onResolvedTextDirectionChanged();
     method public void onResolvedTextDirectionReset();
     method protected void onRestoreInstanceState(android.os.Parcelable);
@@ -23496,11 +23502,13 @@ package android.view {
     method public boolean requestRectangleOnScreen(android.graphics.Rect);
     method public boolean requestRectangleOnScreen(android.graphics.Rect, boolean);
     method public void resetResolvedLayoutDirection();
+    method public void resetResolvedTextAlignment();
     method public void resetResolvedTextDirection();
     method public void resolveLayoutDirection();
     method public void resolvePadding();
     method public static int resolveSize(int, int);
     method public static int resolveSizeAndState(int, int, int);
+    method public void resolveTextAlignment();
     method public void resolveTextDirection();
     method public void restoreHierarchyState(android.util.SparseArray<android.os.Parcelable>);
     method public void saveHierarchyState(android.util.SparseArray<android.os.Parcelable>);
@@ -23584,6 +23592,7 @@ package android.view {
     method public void setSystemUiVisibility(int);
     method public void setTag(java.lang.Object);
     method public void setTag(int, java.lang.Object);
+    method public void setTextAlignment(int);
     method public void setTextDirection(int);
     method public final void setTop(int);
     method public void setTouchDelegate(android.view.TouchDelegate);
@@ -23694,6 +23703,15 @@ package android.view {
     field public static final int SYSTEM_UI_FLAG_LOW_PROFILE = 1; // 0x1
     field public static final int SYSTEM_UI_FLAG_VISIBLE = 0; // 0x0
     field public static final int SYSTEM_UI_LAYOUT_FLAGS = 1536; // 0x600
+    field public static final int TEXT_ALIGNMENT_CENTER = 4; // 0x4
+    field protected static int TEXT_ALIGNMENT_DEFAULT;
+    field public static final int TEXT_ALIGNMENT_GRAVITY = 1; // 0x1
+    field public static final int TEXT_ALIGNMENT_INHERIT = 0; // 0x0
+    field public static final int TEXT_ALIGNMENT_RESOLVED_DEFAULT = 131072; // 0x20000
+    field public static final int TEXT_ALIGNMENT_TEXT_END = 3; // 0x3
+    field public static final int TEXT_ALIGNMENT_TEXT_START = 2; // 0x2
+    field public static final int TEXT_ALIGNMENT_VIEW_END = 6; // 0x6
+    field public static final int TEXT_ALIGNMENT_VIEW_START = 5; // 0x5
     field public static final int TEXT_DIRECTION_ANY_RTL = 2; // 0x2
     field protected static int TEXT_DIRECTION_DEFAULT;
     field public static final int TEXT_DIRECTION_FIRST_STRONG = 1; // 0x1