下面列出了android.view.Gravity#BOTTOM 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Init refresh view or loading view
*/
private void setRefreshView() {
// SetUp HeaderView
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, 0);
headerView = new WXRefreshView(getContext());
headerView.setStartEndTrim(0, 0.75f);
headerView.setBackgroundColor(mRefreshViewBgColor);
headerView.setProgressBgColor(mProgressBgColor);
headerView.setProgressColor(mProgressColor);
headerView.setContentGravity(Gravity.BOTTOM);
addView(headerView, lp);
// SetUp FooterView
lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, 0);
lp.gravity = Gravity.BOTTOM;
footerView = new WXRefreshView(getContext());
footerView.setStartEndTrim(0.5f, 1.25f);
footerView.setBackgroundColor(mRefreshViewBgColor);
footerView.setProgressBgColor(mProgressBgColor);
footerView.setProgressColor(mProgressColor);
footerView.setContentGravity(Gravity.TOP);
addView(footerView, lp);
}
private void hideBottomBar() {
if (mBottomBarView == null) return;
((ViewGroup) mBottomBarView.getParent()).removeView(mBottomBarView);
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
lp.gravity = Gravity.BOTTOM;
final ViewGroup compositorView = mActivity.getCompositorViewHolder();
compositorView.addView(mBottomBarView, lp);
compositorView.addOnLayoutChangeListener(new OnLayoutChangeListener() {
@Override
public void onLayoutChange(View v, int left, int top, int right, int bottom,
int oldLeft, int oldTop, int oldRight, int oldBottom) {
compositorView.removeOnLayoutChangeListener(this);
mBottomBarView.animate().alpha(0f).translationY(mBottomBarView.getHeight())
.setInterpolator(BakedBezierInterpolator.TRANSFORM_CURVE)
.setDuration(SLIDE_ANIMATION_DURATION_MS)
.withEndAction(new Runnable() {
@Override
public void run() {
((ViewGroup) mBottomBarView.getParent()).removeView(mBottomBarView);
mBottomBarView = null;
}
}).start();
}
});
}
@Override
public void addView(View child, int index, ViewGroup.LayoutParams params) {
if (child instanceof EditText) {
// If we already have an EditText, throw an exception
if (mEditText != null) {
throw new IllegalArgumentException("We already have an EditText, can only have one");
}
// Update the layout params so that the EditText is at the bottom, with enough top
// margin to show the label
final LayoutParams lp = new LayoutParams(params);
lp.gravity = Gravity.BOTTOM;
lp.topMargin = (int) mLabel.getTextSize();
params = lp;
setEditText((EditText) child);
}
// Carry on adding the View...
super.addView(child, index, params);
}
public void setImgUrl(String url) {
final Context context = getContext();
ImageView imageView = new ImageView(context);
ImageLoader.load(context, url, imageView);
final int size = (int) (SIZE * BUTTON_RATIO);
LayoutParams params = new LayoutParams(size, size);
params.gravity = Gravity.END | Gravity.BOTTOM;
addView(imageView, params);
mButtonView = imageView;
mButtonView.setOnClickListener(v -> {
if (isOpen) {
close();
} else {
show();
}
});
}
int getSnappedPosition(RecyclerView recyclerView) {
RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
if (layoutManager instanceof LinearLayoutManager) {
if (gravity == Gravity.START || gravity == Gravity.TOP) {
return ((LinearLayoutManager) layoutManager).findFirstCompletelyVisibleItemPosition();
} else if (gravity == Gravity.END || gravity == Gravity.BOTTOM) {
return ((LinearLayoutManager) layoutManager).findLastCompletelyVisibleItemPosition();
}
}
return RecyclerView.NO_POSITION;
}
private void configWindowLayoutParams(Window window,WindowManager.LayoutParams params){
params.gravity= mGravity;
if(mGravity==Gravity.LEFT||mGravity==Gravity.RIGHT){
params.width= getWidthParams(WindowManager.LayoutParams.WRAP_CONTENT);
params.height=getHeightParams(WindowManager.LayoutParams.MATCH_PARENT);
}else if(mGravity==Gravity.TOP||mGravity==Gravity.BOTTOM){
params.width= getWidthParams(WindowManager.LayoutParams.MATCH_PARENT);
params.height=getHeightParams(WindowManager.LayoutParams.WRAP_CONTENT);
}else{
params.width= getWidthParams(WindowManager.LayoutParams.WRAP_CONTENT);
params.height=getHeightParams(WindowManager.LayoutParams.WRAP_CONTENT);
}
window.setAttributes(params);
}
private void updateTopPositionByGravity(ViewPosition pos, int size, int gravity) {
switch (gravity & Gravity.VERTICAL_GRAVITY_MASK) {
case Gravity.BOTTOM:
pos.top += (size > 0) ? size : 0;
break;
case Gravity.CENTER_VERTICAL:
pos.top += ((size > 0) ? size : 0) / 2;
break;
}
}
/**
* 设置数据集合伴随drawable-icon
* @param datas 数据
* @param drawable 图标
* @param size 图标尺寸
* @param direction 图标位于文字方位
*/
public void setDatasWithDrawableIcon(List<String> datas, Drawable drawable,int size, int direction){
this.mDatas = datas;
if (DisplayUtils.isEmpty(mDatas)){
return;
}
mViewFlipper.removeAllViews();
for (int i = 0; i < mDatas.size(); i++) {
TextView textView = new TextView(getContext());
setTextView(textView,i);
textView.setCompoundDrawablePadding(8);
float scale = getResources().getDisplayMetrics().density;// 屏幕密度 ;
int muchDp = (int) (size * scale + 0.5f);
drawable.setBounds(0, 0, muchDp, muchDp);
if (direction==Gravity.LEFT){
textView.setCompoundDrawables(drawable,null,null , null);//左边
}else if (direction==Gravity.TOP){
textView.setCompoundDrawables(null,drawable,null , null);//顶部
}else if (direction==Gravity.RIGHT){
textView.setCompoundDrawables(null,null, drawable, null);//右边
}else if (direction==Gravity.BOTTOM){
textView.setCompoundDrawables(null,null, null, drawable);//底部
}
LinearLayout linearLayout = new LinearLayout(getContext());
linearLayout.setOrientation(LinearLayout.HORIZONTAL);//水平方向
linearLayout.setGravity(mGravity);//子view显示位置跟随TextView
LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(LinearLayout.
LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);
linearLayout.addView(textView,param);
mViewFlipper.addView(linearLayout,i);//添加子view,并标识子view位置
}
}
private void layoutChild(int rowIndex, View v, int start, int end, int startSecondary) {
int sizeSecondary = mOrientation == HORIZONTAL ? v.getMeasuredHeight()
: v.getMeasuredWidth();
if (mFixedRowSizeSecondary > 0) {
sizeSecondary = Math.min(sizeSecondary, mFixedRowSizeSecondary);
}
final int verticalGravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
final int horizontalGravity = mGravity & Gravity.HORIZONTAL_GRAVITY_MASK;
if (mOrientation == HORIZONTAL && verticalGravity == Gravity.TOP
|| mOrientation == VERTICAL && horizontalGravity == Gravity.LEFT) {
// do nothing
} else if (mOrientation == HORIZONTAL && verticalGravity == Gravity.BOTTOM
|| mOrientation == VERTICAL && horizontalGravity == Gravity.RIGHT) {
startSecondary += getRowSizeSecondary(rowIndex) - sizeSecondary;
} else if (mOrientation == HORIZONTAL && verticalGravity == Gravity.CENTER_VERTICAL
|| mOrientation == VERTICAL && horizontalGravity == Gravity.CENTER_HORIZONTAL) {
startSecondary += (getRowSizeSecondary(rowIndex) - sizeSecondary) / 2;
}
int left, top, right, bottom;
if (mOrientation == HORIZONTAL) {
left = start;
top = startSecondary;
right = end;
bottom = startSecondary + sizeSecondary;
} else {
top = start;
left = startSecondary;
bottom = end;
right = startSecondary + sizeSecondary;
}
v.layout(left, top, right, bottom);
updateChildOpticalInsets(v, left, top, right, bottom);
updateChildAlignments(v);
}
@Override
public boolean onLayoutChild(CoordinatorLayout parent, V child, int layoutDirection) {
CoordinatorLayout.LayoutParams layoutParams = (CoordinatorLayout.LayoutParams) child.getLayoutParams();
layoutParams.gravity = Gravity.BOTTOM;
return super.onLayoutChild(parent, child, layoutDirection);
}
void updateTextPositions(int position, float positionOffset, boolean force) {
if (position != mLastKnownCurrentPage) {
updateText(position, mPager.getAdapter());
} else if (!force && positionOffset == mLastKnownPositionOffset) {
return;
}
mUpdatingPositions = true;
final int prevWidth = mPrevText.getMeasuredWidth();
final int currWidth = mCurrText.getMeasuredWidth();
final int nextWidth = mNextText.getMeasuredWidth();
final int halfCurrWidth = currWidth / 2;
final int stripWidth = getWidth();
final int stripHeight = getHeight();
final int paddingLeft = getPaddingLeft();
final int paddingRight = getPaddingRight();
final int paddingTop = getPaddingTop();
final int paddingBottom = getPaddingBottom();
final int textPaddedLeft = paddingLeft + halfCurrWidth;
final int textPaddedRight = paddingRight + halfCurrWidth;
final int contentWidth = stripWidth - textPaddedLeft - textPaddedRight;
float currOffset = positionOffset + 0.5f;
if (currOffset > 1.f) {
currOffset -= 1.f;
}
final int currCenter = stripWidth - textPaddedRight - (int) (contentWidth * currOffset);
final int currLeft = currCenter - currWidth / 2;
final int currRight = currLeft + currWidth;
final int prevBaseline = mPrevText.getBaseline();
final int currBaseline = mCurrText.getBaseline();
final int nextBaseline = mNextText.getBaseline();
final int maxBaseline = Math.max(Math.max(prevBaseline, currBaseline), nextBaseline);
final int prevTopOffset = maxBaseline - prevBaseline;
final int currTopOffset = maxBaseline - currBaseline;
final int nextTopOffset = maxBaseline - nextBaseline;
final int alignedPrevHeight = prevTopOffset + mPrevText.getMeasuredHeight();
final int alignedCurrHeight = currTopOffset + mCurrText.getMeasuredHeight();
final int alignedNextHeight = nextTopOffset + mNextText.getMeasuredHeight();
final int maxTextHeight = Math.max(Math.max(alignedPrevHeight, alignedCurrHeight),
alignedNextHeight);
final int vgrav = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
int prevTop;
int currTop;
int nextTop;
switch (vgrav) {
default:
case Gravity.TOP:
prevTop = paddingTop + prevTopOffset;
currTop = paddingTop + currTopOffset;
nextTop = paddingTop + nextTopOffset;
break;
case Gravity.CENTER_VERTICAL:
final int paddedHeight = stripHeight - paddingTop - paddingBottom;
final int centeredTop = (paddedHeight - maxTextHeight) / 2;
prevTop = centeredTop + prevTopOffset;
currTop = centeredTop + currTopOffset;
nextTop = centeredTop + nextTopOffset;
break;
case Gravity.BOTTOM:
final int bottomGravTop = stripHeight - paddingBottom - maxTextHeight;
prevTop = bottomGravTop + prevTopOffset;
currTop = bottomGravTop + currTopOffset;
nextTop = bottomGravTop + nextTopOffset;
break;
}
mCurrText.layout(currLeft, currTop, currRight,
currTop + mCurrText.getMeasuredHeight());
final int prevLeft = Math.min(paddingLeft, currLeft - mScaledTextSpacing - prevWidth);
mPrevText.layout(prevLeft, prevTop, prevLeft + prevWidth,
prevTop + mPrevText.getMeasuredHeight());
final int nextLeft = Math.max(stripWidth - paddingRight - nextWidth,
currRight + mScaledTextSpacing);
mNextText.layout(nextLeft, nextTop, nextLeft + nextWidth,
nextTop + mNextText.getMeasuredHeight());
mLastKnownPositionOffset = positionOffset;
mUpdatingPositions = false;
}
/**
* コンストラクタ
*
* @param context Context
*/
TrashView(Context context) {
super(context);
mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
mMetrics = new DisplayMetrics();
mWindowManager.getDefaultDisplay().getMetrics(mMetrics);
mAnimationHandler = new AnimationHandler(this);
mIsEnabled = true;
mParams = new WindowManager.LayoutParams();
mParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
mParams.height = ViewGroup.LayoutParams.MATCH_PARENT;
mParams.type = OVERLAY_TYPE;
mParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE |
WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE |
WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL;
mParams.format = PixelFormat.TRANSLUCENT;
// INFO:Windowの原点のみ左下に設定
mParams.gravity = Gravity.LEFT | Gravity.BOTTOM;
// 各種Viewの設定
// TrashViewに直接貼り付けられるView（このViewを介さないと、削除Viewと背景Viewのレイアウトがなぜか崩れる）
mRootView = new FrameLayout(context);
mRootView.setClipChildren(false);
// 削除アイコンのルートView
mTrashIconRootView = new FrameLayout(context);
mTrashIconRootView.setClipChildren(false);
mFixedTrashIconView = new ImageView(context);
mActionTrashIconView = new ImageView(context);
// 背景View
mBackgroundView = new FrameLayout(context);
mBackgroundView.setAlpha(0.0f);
final GradientDrawable gradientDrawable = new GradientDrawable(GradientDrawable.Orientation.TOP_BOTTOM, new int[]{0x00000000, 0x50000000});
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
//noinspection deprecation
mBackgroundView.setBackgroundDrawable(gradientDrawable);
} else {
mBackgroundView.setBackground(gradientDrawable);
}
// 背景Viewの貼り付け
final LayoutParams backgroundParams = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, (int) (BACKGROUND_HEIGHT * mMetrics.density));
backgroundParams.gravity = Gravity.BOTTOM;
mRootView.addView(mBackgroundView, backgroundParams);
// アクションアイコンの貼り付け
final LayoutParams actionTrashIconParams = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
actionTrashIconParams.gravity = Gravity.CENTER;
mTrashIconRootView.addView(mActionTrashIconView, actionTrashIconParams);
// 固定アイコンの貼付け
final LayoutParams fixedTrashIconParams = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
fixedTrashIconParams.gravity = Gravity.CENTER;
mTrashIconRootView.addView(mFixedTrashIconView, fixedTrashIconParams);
// 削除アイコンの貼り付け
final LayoutParams trashIconParams = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
trashIconParams.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
mRootView.addView(mTrashIconRootView, trashIconParams);
// TrashViewに貼り付け
addView(mRootView);
// 初回描画処理用
getViewTreeObserver().addOnPreDrawListener(this);
}
public EasyTabsBuilder changeIconPosition(String position){
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT);
switch (position) {
case "left":
lp.gravity = Gravity.LEFT;
lp.setMargins(0,0, 0, 2);
break;
case "right":
lp.gravity = Gravity.RIGHT;
lp.setMargins(0, 2, 0, 0);
break;
case "top":
lp.gravity = Gravity.TOP;
lp.setMargins(2, 0, 0, 0);
break;
case "bottom":
lp.gravity = Gravity.BOTTOM;
lp.setMargins(0, 0, 2, 0);
break;
case "center":
lp.gravity = Gravity.CENTER;
lp.setMargins(0, 0, 0, 0);
break;
default:
break;
}
ViewGroup vg = (ViewGroup) StaticTabsLayout.getChildAt(0);
int tabsCount = vg.getChildCount();
for (int j = 0; j < tabsCount; j++) {
ViewGroup vgTab = (ViewGroup) vg.getChildAt(j);
int tabChildsCount = vgTab.getChildCount();
for (int i = 0; i < tabChildsCount; i++) {
View tabViewChild = vgTab.getChildAt(i);
if (tabViewChild instanceof ImageView) {
tabViewChild.setLayoutParams(lp);
}
}
}
return this;
}
private void changeGravityToBottomCenterHorizontal(View view) {
((FrameLayout.LayoutParams) view.getLayoutParams()).gravity =
Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL;
}
@OnClick({R.id.btn_color, R.id.btn_left, R.id.btn_top, R.id.btn_triangle,
R.id.btn_text1_minus, R.id.btn_text1_plus, R.id.btn_height1_minus, R.id.btn_height1_plus,
R.id.btn_text2_minus, R.id.btn_text2_plus, R.id.btn_height2_minus, R.id.btn_height2_plus})
@Override
public void onClick(View v) {
super.onClick(v);
switch (v.getId()) {
case R.id.btn_color:
labelView.setFillColor(0xff000000 | RandomUtils.getRandom(0, 0xffffff));
break;
case R.id.btn_left:
if (mIsLeft) {
labelView.right();
} else {
labelView.left();
}
mIsLeft = !mIsLeft;
FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) labelView.getLayoutParams();
lp.gravity = (mIsLeft ? Gravity.LEFT : Gravity.RIGHT) | (mIsTop ? Gravity.TOP : Gravity.BOTTOM);
labelView.setLayoutParams(lp);
break;
case R.id.btn_top:
if (mIsTop) {
labelView.bottom();
} else {
labelView.top();
}
mIsTop = !mIsTop;
FrameLayout.LayoutParams lp2 = (FrameLayout.LayoutParams) labelView.getLayoutParams();
lp2.gravity = (mIsLeft ? Gravity.LEFT : Gravity.RIGHT) | (mIsTop ? Gravity.TOP : Gravity.BOTTOM);
labelView.setLayoutParams(lp2);
break;
case R.id.btn_triangle:
mIsTriangle = !mIsTriangle;
labelView.triangle(mIsTriangle);
break;
case R.id.btn_text1_minus:
mText1Index = (mText1Index - 1 + TEXTS.length) % TEXTS.length;
labelView.setText1(TEXTS[mText1Index]);
break;
case R.id.btn_text1_plus:
mText1Index = (mText1Index + 1) % TEXTS.length;
labelView.setText1(TEXTS[mText1Index]);
break;
case R.id.btn_height1_minus:
if (mText1Height < 8) break;
mText1Height -= 2;
convertPx = SizeUtils.spConvertPx(mText1Height);
labelView.setTextHeight1(convertPx);
labelView.setPaddingTop(convertPx);
labelView.setPaddingCenter(convertPx / 3);
labelView.setPaddingBottom(convertPx / 3);
break;
case R.id.btn_height1_plus:
if (mText1Height > 30) break;
mText1Height += 2;
convertPx = SizeUtils.spConvertPx(mText1Height);
labelView.setTextHeight1(convertPx);
labelView.setPaddingTop(convertPx);
labelView.setPaddingCenter(convertPx / 3);
labelView.setPaddingBottom(convertPx / 3);
break;
case R.id.btn_text2_minus:
mText2Index = (mText2Index + 5 - 1) % 5;
labelView.setText2("1234567890".substring(0, mText2Index));
break;
case R.id.btn_text2_plus:
mText2Index = (mText2Index + 5 + 1) % 5;
labelView.setText2("1234567890".substring(0, mText2Index));
break;
case R.id.btn_height2_minus:
if (mText2Height < 4) break;
mText2Height -= 2;
convertPx = SizeUtils.spConvertPx(mText2Height);
labelView.setTextHeight2(convertPx);
break;
case R.id.btn_height2_plus:
if (mText2Height > 20) break;
mText2Height += 2;
convertPx = SizeUtils.spConvertPx(mText2Height);
labelView.setTextHeight2(convertPx);
break;
}
}
/**
* Tries to set task's bound in a way that it won't collide with any other task. By colliding
* we mean that two tasks have left-top corner very close to each other, so one might get
* obfuscated by the other one.
*/
@Override
public int onCalculate(TaskRecord task, ActivityInfo.WindowLayout layout,
ActivityRecord activity, ActivityRecord source, ActivityOptions options,
LaunchParams currentParams, LaunchParams outParams) {
// We can only apply positioning if we're in a freeform stack.
if (task == null || task.getStack() == null || !task.inFreeformWindowingMode()) {
return RESULT_SKIP;
}
final ArrayList<TaskRecord> tasks = task.getStack().getAllTasks();
mAvailableRect.set(task.getParent().getBounds());
final Rect resultBounds = outParams.mBounds;
if (layout == null) {
positionCenter(tasks, mAvailableRect, getFreeformWidth(mAvailableRect),
getFreeformHeight(mAvailableRect), resultBounds);
return RESULT_CONTINUE;
}
int width = getFinalWidth(layout, mAvailableRect);
int height = getFinalHeight(layout, mAvailableRect);
int verticalGravity = layout.gravity & Gravity.VERTICAL_GRAVITY_MASK;
int horizontalGravity = layout.gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
if (verticalGravity == Gravity.TOP) {
if (horizontalGravity == Gravity.RIGHT) {
positionTopRight(tasks, mAvailableRect, width, height, resultBounds);
} else {
positionTopLeft(tasks, mAvailableRect, width, height, resultBounds);
}
} else if (verticalGravity == Gravity.BOTTOM) {
if (horizontalGravity == Gravity.RIGHT) {
positionBottomRight(tasks, mAvailableRect, width, height, resultBounds);
} else {
positionBottomLeft(tasks, mAvailableRect, width, height, resultBounds);
}
} else {
// Some fancy gravity setting that we don't support yet. We just put the activity in the
// center.
Slog.w(TAG, "Received unsupported gravity: " + layout.gravity
+ ", positioning in the center instead.");
positionCenter(tasks, mAvailableRect, width, height, resultBounds);
}
return RESULT_CONTINUE;
}
@Override
protected void onDraw(Canvas canvas) {
final Drawable buttonDrawable = drawable;
if (buttonDrawable != null) {
final int verticalGravity = getGravity() & Gravity.VERTICAL_GRAVITY_MASK;
final int drawableHeight = buttonDrawable.getIntrinsicHeight();
final int drawableWidth = buttonDrawable.getIntrinsicWidth();
final int top;
switch (verticalGravity) {
case Gravity.BOTTOM:
top = getHeight() - drawableHeight - getPaddingBottom();
break;
case Gravity.CENTER_VERTICAL:
top = (getHeight() - drawableHeight - getPaddingTop() - getPaddingBottom()) / 2 + getPaddingTop();
break;
default:
top = getPaddingTop();
}
final int bottom = top + drawableHeight;
final int left = isButtonOnTheLeft() ? getPaddingLeft() : getWidth() - drawableWidth - getPaddingRight();
final int right = isButtonOnTheLeft() ? drawableWidth + getPaddingLeft() : getWidth() - getPaddingRight();
buttonDrawable.setBounds(left, top, right, bottom);
final Drawable background = getBackground();
if (background instanceof RippleDrawable) {
//TODO: hotspotBounds
// ((RippleDrawable)background).setHotspotBounds(left, top, right, bottom);
}
}
super.onDraw(canvas);
if (buttonDrawable != null) {
// TODO: get rid of invalidate() loop
if (animateColorChanges && tint != null && tintMode != null)
buttonDrawable.setColorFilter(new PorterDuffColorFilter(tint.getColorForState(buttonDrawable.getState(), tint.getDefaultColor()), tintMode));
final int scrollX = getScrollX();
final int scrollY = getScrollY();
if (scrollX == 0 && scrollY == 0) {
buttonDrawable.draw(canvas);
} else {
canvas.translate(scrollX, scrollY);
buttonDrawable.draw(canvas);
canvas.translate(-scrollX, -scrollY);
}
}
}
@Override
public void onDrawState(EmptyStateRecyclerView rv, Canvas canvas) {
final int width = rv.getMeasuredWidth();
final int height = rv.getMeasuredHeight();
configureTextLayouts(width);
// Account for vertical text gravity
final int verticalGravity = textGravity&Gravity.VERTICAL_GRAVITY_MASK;
float dy;
switch (verticalGravity) {
case Gravity.CENTER_VERTICAL:
dy = (height >> 1) - ((int)getFullTextHeight() >> 1);
break;
case Gravity.BOTTOM:
dy = height - getFullTextHeight();
break;
default:
case Gravity.TOP:
dy = 0;
break;
}
dy += getPaddingTop();
final int horizontalGravity = Gravity.getAbsoluteGravity(textGravity,
ViewCompat.getLayoutDirection(rv))&Gravity.HORIZONTAL_GRAVITY_MASK;
// Draw the title text
canvas.save();
canvas.translate(
getDx(width, horizontalGravity, titlePaint, titleLayout),
dy);
this.titleLayout.draw(canvas);
canvas.restore();
// Add spacing for under the text with the title spacing
dy += titleLayout.getHeight() + titleSpacing;
// Draw the subtitle text under the title text
canvas.save();
canvas.translate(
getDx(width, horizontalGravity, subtitlePaint, subtitleLayout),
dy);
this.subtitleLayout.draw(canvas);
canvas.restore();
}
private void updateTabStyles() {
for (int i = 0; i < mTabCount; i++) {
View tabView = mTabsContainer.getChildAt(i);
tabView.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0);
TextView tv_tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title);
tv_tab_title.setTextColor(i == mCurrentTab ? mTextSelectColor : mTextUnselectColor);
tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize);
// tv_tab_title.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0);
if (mTextAllCaps) {
tv_tab_title.setText(tv_tab_title.getText().toString().toUpperCase());
}
if (mTextBold == TEXT_BOLD_BOTH) {
tv_tab_title.getPaint().setFakeBoldText(true);
} else if (mTextBold == TEXT_BOLD_NONE) {
tv_tab_title.getPaint().setFakeBoldText(false);
}
ImageView iv_tab_icon = (ImageView) tabView.findViewById(R.id.iv_tab_icon);
if (mIconVisible) {
iv_tab_icon.setVisibility(View.VISIBLE);
CustomTabEntity tabEntity = mTabEntitys.get(i);
iv_tab_icon.setImageResource(i == mCurrentTab ? tabEntity.getTabSelectedIcon() : tabEntity.getTabUnselectedIcon());
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
mIconWidth <= 0 ? LinearLayout.LayoutParams.WRAP_CONTENT : (int) mIconWidth,
mIconHeight <= 0 ? LinearLayout.LayoutParams.WRAP_CONTENT : (int) mIconHeight);
if (mIconGravity == Gravity.LEFT) {
lp.rightMargin = (int) mIconMargin;
} else if (mIconGravity == Gravity.RIGHT) {
lp.leftMargin = (int) mIconMargin;
} else if (mIconGravity == Gravity.BOTTOM) {
lp.topMargin = (int) mIconMargin;
} else {
lp.bottomMargin = (int) mIconMargin;
}
iv_tab_icon.setLayoutParams(lp);
} else {
iv_tab_icon.setVisibility(View.GONE);
}
}
}
void updateTextPositions(int position, float positionOffset, boolean force) {
if (position != mLastKnownCurrentPage) {
updateText(position, mPager.getAdapter());
} else if (!force && positionOffset == mLastKnownPositionOffset) {
return;
}
mUpdatingPositions = true;
final int prevWidth = mPrevText.getMeasuredWidth();
final int currWidth = mCurrText.getMeasuredWidth();
final int nextWidth = mNextText.getMeasuredWidth();
final int halfCurrWidth = currWidth / 2;
final int stripWidth = getWidth();
final int stripHeight = getHeight();
final int paddingLeft = getPaddingLeft();
final int paddingRight = getPaddingRight();
final int paddingTop = getPaddingTop();
final int paddingBottom = getPaddingBottom();
final int textPaddedLeft = paddingLeft + halfCurrWidth;
final int textPaddedRight = paddingRight + halfCurrWidth;
final int contentWidth = stripWidth - textPaddedLeft - textPaddedRight;
float currOffset = positionOffset + 0.5f;
if (currOffset > 1.f) {
currOffset -= 1.f;
}
final int currCenter = stripWidth - textPaddedRight - (int) (contentWidth * currOffset);
final int currLeft = currCenter - currWidth / 2;
final int currRight = currLeft + currWidth;
final int prevBaseline = mPrevText.getBaseline();
final int currBaseline = mCurrText.getBaseline();
final int nextBaseline = mNextText.getBaseline();
final int maxBaseline = Math.max(Math.max(prevBaseline, currBaseline), nextBaseline);
final int prevTopOffset = maxBaseline - prevBaseline;
final int currTopOffset = maxBaseline - currBaseline;
final int nextTopOffset = maxBaseline - nextBaseline;
final int alignedPrevHeight = prevTopOffset + mPrevText.getMeasuredHeight();
final int alignedCurrHeight = currTopOffset + mCurrText.getMeasuredHeight();
final int alignedNextHeight = nextTopOffset + mNextText.getMeasuredHeight();
final int maxTextHeight = Math.max(Math.max(alignedPrevHeight, alignedCurrHeight),
alignedNextHeight);
final int vgrav = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
int prevTop;
int currTop;
int nextTop;
switch (vgrav) {
default:
case Gravity.TOP:
prevTop = paddingTop + prevTopOffset;
currTop = paddingTop + currTopOffset;
nextTop = paddingTop + nextTopOffset;
break;
case Gravity.CENTER_VERTICAL:
final int paddedHeight = stripHeight - paddingTop - paddingBottom;
final int centeredTop = (paddedHeight - maxTextHeight) / 2;
prevTop = centeredTop + prevTopOffset;
currTop = centeredTop + currTopOffset;
nextTop = centeredTop + nextTopOffset;
break;
case Gravity.BOTTOM:
final int bottomGravTop = stripHeight - paddingBottom - maxTextHeight;
prevTop = bottomGravTop + prevTopOffset;
currTop = bottomGravTop + currTopOffset;
nextTop = bottomGravTop + nextTopOffset;
break;
}
mCurrText.layout(currLeft, currTop, currRight,
currTop + mCurrText.getMeasuredHeight());
final int prevLeft = Math.min(paddingLeft, currLeft - mScaledTextSpacing - prevWidth);
mPrevText.layout(prevLeft, prevTop, prevLeft + prevWidth,
prevTop + mPrevText.getMeasuredHeight());
final int nextLeft = Math.max(stripWidth - paddingRight - nextWidth,
currRight + mScaledTextSpacing);
mNextText.layout(nextLeft, nextTop, nextLeft + nextWidth,
nextTop + mNextText.getMeasuredHeight());
mLastKnownPositionOffset = positionOffset;
mUpdatingPositions = false;
}