Я создал пользовательскую ViewGroup для реализации следующего пользовательского интерфейса.Но я так или иначе получил текстовое представление, текст которого не центрирован.Я пробовал много способов, но, к сожалению, не смог.
Вот моя пользовательская группа просмотра
/**
* Used for showing second sift
*/
public class SecondSiftContainerView extends ViewGroup {
@Nullable
private List<MultiOptInfo.SecondLevelSiftItem> mSecondLevelSiftItemList;
private List<Integer> mLineNumList = new ArrayList<>();
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (getChildCount() >= 4) {
} else {
int mPaddingTop = getPaddingTop();
int mPaddingBottom = getPaddingBottom();
int widthSize = MeasureSpec.getSize(widthMeasureSpec);
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
int lineHeight = 0;
for (int i = 0; i < this.getChildCount(); i++) {
View child = this.getChildAt(i);
if (child.getVisibility() == GONE) {
continue;
}
measureChildWithMargins(child, widthMeasureSpec, 0, heightMeasureSpec, mPaddingTop);
MarginLayoutParams marginLayoutParams =
(MarginLayoutParams) child.getLayoutParams();
int childHeight = child.getMeasuredHeight();
int spaceHeight =
marginLayoutParams.topMargin + childHeight
+ marginLayoutParams.bottomMargin;
if (spaceHeight > lineHeight) {
lineHeight = spaceHeight;
}
}
setMeasuredDimension(widthSize,
heightMode == MeasureSpec.EXACTLY ? heightSize :
mPaddingTop + lineHeight + mPaddingBottom
);
}
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int mPaddingLeft = getPaddingLeft();
int mPaddingRight = getPaddingRight();
int mPaddingTop = getPaddingTop();
int lineX = mPaddingLeft;
int lineWidth = r - l;
int lineUsed = mPaddingLeft + mPaddingRight;
int lineHeight = 0;
int lineNum = 0;
mLineNumList.clear();
if (getChildCount() == 2) {
View child0 = getChildAt(0);
int child0width = (getMeasuredWidth() - 30 * 3) / 2;
child0.layout(30, 30, child0width + 30, 30 + child0.getMeasuredHeight());
View child1 = getChildAt(1);
child1.layout(child0width + 30 + 40, 30, 30 + 40 + child0width * 2,
30 + child1.getMeasuredHeight());
} else if (getChildCount() == 3) {
int viewWidth = (getMeasuredWidth() - 30 * 4) / 3;
View child0 = getChildAt(0);
child0.layout(30, 30, 30 + viewWidth, 30 + child0.getMeasuredHeight());
View child1 = getChildAt(1);
child1.layout(30 * 2 + viewWidth, 30, 30 * 2 + viewWidth * 2,
30 + child1.getMeasuredHeight());
View child2 = getChildAt(2);
child2.layout(30 * 3 + viewWidth * 2, 30, 30 * 3 + viewWidth * 3,
30 + child2.getMeasuredHeight());
} else if (getChildCount() >= 4) {
for (int i = 0; i < getChildCount(); i++) {
View child = this.getChildAt(i);
if (child.getVisibility() == GONE) {
continue;
}
int spaceWidth = 0;
int spaceHeight = 0;
int left;
int top;
int right;
int bottom;
int childWidth = child.getMeasuredWidth();
int childHeight = child.getMeasuredHeight();
LayoutParams childLayoutParams = child.getLayoutParams();
if (childLayoutParams instanceof MarginLayoutParams) {
MarginLayoutParams marginLayoutParams = (MarginLayoutParams) childLayoutParams;
spaceWidth = marginLayoutParams.leftMargin + marginLayoutParams.rightMargin;
spaceHeight = marginLayoutParams.topMargin + marginLayoutParams.bottomMargin;
left = lineX + marginLayoutParams.leftMargin;
top = mPaddingTop + marginLayoutParams.topMargin;
right = lineX + marginLayoutParams.leftMargin + childWidth;
bottom = mPaddingTop + marginLayoutParams.topMargin + childHeight;
} else {
left = lineX;
top = mPaddingTop;
right = lineX + childWidth;
bottom = mPaddingTop + childHeight;
}
spaceWidth += childWidth;
spaceHeight += childHeight;
if (lineUsed + spaceWidth > lineWidth) {
break;
}
child.layout(left, top, right, bottom);
lineNum++;
if (spaceHeight > lineHeight) {
lineHeight = spaceHeight;
}
lineUsed += spaceWidth;
lineX += spaceWidth;
}
// add the num of last line
mLineNumList.add(lineNum);
}
}
public void setSecondLevelSiftItemList(@NonNull
List<MultiOptInfo.SecondLevelSiftItem> secondLevelSiftItemList) {
mSecondLevelSiftItemList = secondLevelSiftItemList;
int itemListSize = mSecondLevelSiftItemList.size();
if (itemListSize == 2 || itemListSize == 3) {
initTwoOrThreeTextView();
} else if (itemListSize >= 4) {
initFourOrAboveTextView();
}
}
private void initTwoOrThreeTextView() {
List<TextView> tagTextViewList = new ArrayList<>();
assert mSecondLevelSiftItemList != null;
for (int i = 0; i < mSecondLevelSiftItemList.size(); i++) {
TextView textView = new TextView(getContext());
textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 12);
textView.setTextColor(Styles.parseColor("#333333"));
textView.setBackgroundColor(getResources().getColor(R.color.white));
LinearLayout.LayoutParams layoutParams =
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.gravity = Gravity.CENTER;
textView.setLayoutParams(layoutParams);
textView.setText(mSecondLevelSiftItemList.get(i).itemValue);
layoutParams.setMargins(0, 30, 0, 30);
int verticalPadding = DensityUtil.dip2px(textView.getContext(), 4);
int horizontalPadding = DensityUtil.dip2px(textView.getContext(), 0);
textView.setPadding(horizontalPadding, verticalPadding, horizontalPadding,
verticalPadding);
textView.setGravity(Gravity.CENTER);
tagTextViewList.add(textView);
final int finalI = i;
textView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
ToastUtils.showToast(getContext(),
mSecondLevelSiftItemList.get(finalI).itemValue);
}
});
}
for (int i = 0; i < tagTextViewList.size(); i++) {
addView(tagTextViewList.get(i));
}
}
}
Вот реальный дисплей:
