Android 标签栏pagerslidingtabstrip用法实例（含Demo）
作者：互联网
private void addTab(final int position, View tab) {
tab.setFocusable(true);
tab.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
pager.setCurrentItem(position);
}
});
tab.setPadding(tabPadding, 0, tabPadding, 0);
tabsContainer
-
.addView(tab, position, shouldExpand ? expandedTabLayoutParams
- defaultTabLayoutParams);
}
private void updateTabStyles() {
for (int i = 0; i < tabCount; i++) {
View v = tabsContainer.getChildAt(i);
v.setBackgroundResource(tabBackgroundResId);
if (v instanceof TextView) {
TextView tab = (TextView) v;
tab.setTextSize(TypedValue.COMPLEX_UNIT_PX, tabTextSize);
tab.setTypeface(tabTypeface, tabTypefaceStyle);
tab.setTextColor(tabTextColor);
// setAllCaps() is only available from API 14, so the upper case
// is made manually if we are on a
// pre-ICS-build
if (textAllCaps) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
tab.setAllCaps(true);
} else {
tab.setText(tab.getText().toString()
.toUpperCase(locale));
}
}
if (i == selectedPosition) {
tab.setTextColor(selectedTabTextColor);
}
}
}
}
private void scrollToChild(int position, int offset) {
if (tabCount == 0) {
return;
}
int newScrollX = tabsContainer.getChildAt(position).getLeft() + offset;
if (position > 0 || offset > 0) {
newScrollX -= scrollOffset;
}
if (newScrollX != lastScrollX) {
lastScrollX = newScrollX;
scrollTo(newScrollX, 0);
}
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (isInEditMode() || tabCount == 0) {
return;
}
final int height = getHeight();
// draw underline
rectPaint.setColor(underlineColor);
canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(),
height, rectPaint);
// draw indicator line
rectPaint.setColor(indicatorColor);
// default: line below current tab
View currentTab = tabsContainer.getChildAt(currentPosition);
float lineLeft = currentTab.getLeft();
float lineRight = currentTab.getRight();
// if there is an offset, start interpolating left and right coordinates
// between current and next tab
if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {
View nextTab = tabsContainer.getChildAt(currentPosition + 1);
final float nextTabLeft = nextTab.getLeft();
final float nextTabRight = nextTab.getRight();
lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset)
- lineLeft);
lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset)
- lineRight);
}
canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height,
rectPaint);
// draw divider
dividerPaint.setColor(dividerColor);
for (int i = 0; i < tabCount - 1; i++) {
View tab = tabsContainer.getChildAt(i);
canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(),
height - dividerPadding, dividerPaint);
}
}
private class PageListener implements OnPageChangeListener {
@Override
public void onPageScrolled(int position, float positionOffset,
int positionOffsetPixels) {
currentPosition = position;
currentPositionOffset = positionOffset;
scrollToChild(position, (int) (positionOffset * tabsContainer
.getChildAt(position).getWidth()));
invalidate();
if (delegatePageListener != null) {
delegatePageListener.onPageScrolled(position, positionOffset,
positionOffsetPixels);
}
}
@Override
public void onPageScrollStateChanged(int state) {
if (state == ViewPager.SCROLL_STATE_IDLE) {
scrollToChild(pager.getCurrentItem(), 0);
}
if (delegatePageListener != null) {
delegatePageListener.onPageScrollStateChanged(state);
}
}
@Override
public void onPageSelected(int position) {
selectedPosition = position;
updateTabStyles();
if (delegatePageListener != null) {
delegatePageListener.onPageSelected(position);
}
}
}
public void setSelectedPosition(int selectedPosition) {
this.selectedPosition = selectedPosition;
}
public void
setIndicatorColor(int indicatorColor) {
this.indicatorColor = indicatorColor;
invalidate();
}
public void setIndicatorColorResource(int resId) {
this.indicatorColor = getResources().getColor(resId);
invalidate();
}
public int getIndicatorColor() {
return this.indicatorColor;
}
public void setIndicatorHeight(int indicatorLineHeightPx) {
this.indicatorHeight = indicatorLineHeightPx;
invalidate();
}
public int getIndicatorHeight() {
return indicatorHeight;
}
public void setUnderlineColor(int underlineColor) {
this.underlineColor = underlineColor;
invalidate();
}
public void setUnderlineColorResource(int resId) {
this.underlineColor = getResources().getColor(resId);
invalidate();
}
public int getUnderlineColor() {
return underlineColor;
}
public void setDividerColor(int dividerColor) {
this.dividerColor = dividerColor;
invalidate();
}
public void setDividerColorResource(int resId) {
this.dividerColor = getResources().getColor(resId);
invalidate();
}
public int getDividerColor() {
return dividerColor;
}
public void setUnderlineHeight(int underlineHeightPx) {
this.underlineHeight = underlineHeightPx;
invalidate();
}
public int getUnderlineHeight() {
return underlineHeight;
}
public void setDividerPadding(int dividerPaddingPx) {
this.dividerPadding = dividerPaddingPx;
invalidate();
}
public int getDividerPadding() {
return dividerPadding;
}
public void setScrollOffset(int scrollOffsetPx) {
this.scrollOffset = scrollOffsetPx;
invalidate();
}
public int getScrollOffset() {
return scrollOffset;
}
public void setShouldExpand(boolean shouldExpand) {
this.shouldExpand = shouldExpand;
notifyDataSetChanged();
}
public boolean getShouldExpand() {
return shouldExpand;
}
public boolean isTextAllCaps() {
return textAllCaps;
}
public void setAllCaps(boolean textAllCaps) {
this.textAllCaps = textAllCaps;
}
public void setTextSize(int textSizePx) {
this.tabTextSize = textSizePx;
updateTabStyles();
}
public int getTextSize() {
return tabTextSize;
}
public void setTextColor(int textColor) {
this.tabTextColor = textColor;
updateTabStyles();
}
public void setTextColorResource(int resId) {
this.tabTextColor = getResources().getColor(resId);
updateTabStyles();
}
public int getTextColor() {
return tabTextColor;
}
public void setSelectedTextColor(int textColor) {
this.selectedTabTextColor = textColor;
updateTabStyles();
}
public void setSelectedTextColorResource(int resId) {
this.selectedTabTextColor = getResources().getColor(resId);
updateTabStyles();
}
public int getSelectedTextColor() {
return selectedTabTextColor;
}
public void setTypeface(Typeface typeface, int style) {
this.tabTypeface = typeface;
this.tabTypefaceStyle = style;
updateTabStyles();
}
public void setTabBackground(int resId) {
this.tabBackgroundResId = resId;
updateTabStyles();
}
public int getTabBackground() {
return tabBackgroundResId;
}
public void setTabPaddingLeftRight(int paddingPx) {
this.tabPadding = paddingPx;
updateTabStyles();
}
public int getTabPaddingLeftRight() {
return tabPadding;
}
@Override
public void onRestoreInstanceState(Parcelable state) {
SavedState savedState = (SavedState) state;
super.onRestoreInstanceState(savedState.getSuperState());
currentPosition = savedState.currentPosition;
requestLayout();
}
@Override
public Parcelable onSaveInstanceState() {
Parcelable superState = super.onSaveInstanceState();
SavedState savedState = new SavedState(superState);
savedState.currentPosition = currentPosition;
return savedState;
}
static class SavedState extends BaseSavedState {
int currentPosition;
public SavedState(Parcelable superState) {
super(superState);
}
private SavedState(Parcel in) {
super(in);
currentPosition = in.readInt();
}
@Override
public void writeToParcel(Parcel dest, int flags) {
super.writeToParcel(dest, flags);
dest.writeInt(currentPosition);
}
public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
@Override
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
@Override
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
}
}
xml布局中直接引用
<LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
xmlns:tools=“http://schemas.android.com/tools”
android:layout_width=“match_parent”
android:orientation=“vertical”
android:layout_height=“match_parent”>
<com.baobao.pagerslidingtabstrip.PagerSlidingTabStrip
android:id="@+id/slide_tabs"
android:layout_width=“match_parent”
android:layout_height=“40dp”/>
<android.support.v4.view.ViewPager
android:id="@+id/slide_pager"
android:layout_width=“match_parent”
android:layout_height=“match_parent” />
Activity代码
package com.baobao.pagerslidingtabstrip;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.util.DisplayMetrics;
import android.util.TypedValue;
public class MainActivity extends FragmentActivity {
private static final int VIEW_PAGE_SIZE = 8;
private PagerSlidingTabStrip mSlideTabs;
private DisplayMetrics mDm;
private ViewPager mSlidePager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//初始化 标签栏
mDm = getResources().getDisplayMetrics();
mSlidePager = (ViewPager) findViewById(R.id.slide_pager);
mSlideTabs = (PagerSlidingTabStrip) findViewById(R.id.slide_tabs);
if (mSlidePager.getAdapter() == null) {
mSlidePager.setOffscreenPageLimit(VIEW_PAGE_SIZE);
mSlidePager.setAdapter(new TabPageIndicatorAdapter(getSupportFragmentManager()));
}
mSlideTabs.setViewPager(mSlidePager);
setTabsValue();
}
/**
- 设置PagerSlidingTabStrip的样式
*/
private void setTabsValue() {
// 设置Tab是自动填充满屏幕的
mSlideTabs.setShouldExpand(true);
// 设置Tab的分割线是透明的
//tabs.setDividerColor(Color.TRANSPARENT);
// 设置Tab底部线的高度
mSlideTabs.setUnderlineHeight((int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 2, mDm));
// 设置Tab Indicator的高度
mSlideTabs.setIndicatorHeight((int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 1, mDm));
// 设置Tab标题文字的大小
mSlideTabs.setTextSize((int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_SP, 14, mDm));
// 设置Tab Indicator的颜色
mSlideTabs.setIndicatorColor(getResources().getColor(R.color.common_blue));
// 设置选中Tab文字的颜色 (这是我自定义的一个方法)
mSlideTabs.setSelectedTextColor(getResources().getColor(R.color.common_blue));
// 取消点击Tab时的背景色
mSlideTabs.setTabBackground(0);
}
}
SlidePager);
setTabsValue();
}
/**
- 设置PagerSlidingTabStrip的样式
*/
private void setTabsValue() {
// 设置Tab是自动填充满屏幕的
mSlideTabs.setShouldExpand(true);
// 设置Tab的分割线是透明的
//tabs.setDividerColor(Color.TRANSPARENT);
// 设置Tab底部线的高度
mSlideTabs.setUnderlineHeight((int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 2, mDm));
// 设置Tab Indicator的高度
mSlideTabs.setIndicatorHeight((int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 1, mDm));
// 设置Tab标题文字的大小
mSlideTabs.setTextSize((int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_SP, 14, mDm));
// 设置Tab Indicator的颜色
mSlideTabs.setIndicatorColor(getResources().getColor(R.color.common_blue));
// 设置选中Tab文字的颜色 (这是我自定义的一个方法)
mSlideTabs.setSelectedTextColor(getResources().getColor(R.color.common_blue));
// 取消点击Tab时的背景色
mSlideTabs.setTabBackground(0);
}
}
标签：pagerslidingtabstrip,int,Demo,void,tab,return,Android,public,mSlideTabs 来源： https://blog.csdn.net/m0_66145114/article/details/122665336