/*
* Copyright (C) 2012 www.amsoft.cn
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.ab.view.sliding;
/*
* Copyright (C) 2012 www.amsoft.cn
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.util.ArrayList;
import java.util.List;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.View;
import android.view.animation.TranslateAnimation;
import android.widget.ImageView;
import android.widget.LinearLayout;
import com.ab.adapter.AbFragmentPagerAdapter;
import com.ab.util.AbAppUtil;
import com.ab.util.AbLogUtil;
import com.ab.view.sample.AbViewPager;
// TODO: Auto-generated Javadoc
/**
* © 2012 amsoft.cn
* 名称：AbSlidingTabView.java
* 描述：滑动的tab.
*
* @author 还如一梦中
* @version v1.0
* @date：2013-05-17 下午6:46:29
*/
public class AbBottomTabView extends LinearLayout {
/** The context. */
private Context context;
/** tab的线性布局. */
private LinearLayout mTabLayout = null;
/** The m view pager. */
private AbViewPager mViewPager;
/** The m listener. */
private ViewPager.OnPageChangeListener mListener;
/** tab的列表. */
private ArrayList<AbTabItemView> tabItemList = null;
/** 内容的View. */
private ArrayList<Fragment> pagerItemList = null;
/** tab的文字. */
private List<String> tabItemTextList = null;
/** tab的图标. */
private List<Drawable> tabItemDrawableList = null;
/** 当前选中编号. */
private int mSelectedTabIndex = 0;
/** 内容区域的适配器. */
private AbFragmentPagerAdapter mFragmentPagerAdapter = null;
/** tab的背景. */
private int tabBackgroundResource = -1;
/** tab的文字大小. */
private int tabTextSize = 30;
/** tab的文字颜色. */
private int tabTextColor = Color.BLACK;
/** tab的选中文字颜色. */
private int tabSelectColor = Color.WHITE;
/** 图片尺寸. */
private int mDrawablesBoundsLeft,mDrawablesBoundsTop,mDrawablesBoundsRight,mDrawablesBoundsBottom;
/** The m tab click listener. */
private OnClickListener mTabClickListener = new OnClickListener() {
public void onClick(View view) {
AbTabItemView tabView = (AbTabItemView)view;
setCurrentItem(tabView.getIndex());
}
};
/** 滑块动画图片. */
private ImageView mTabImg;
/** tab滑块的高度. */
private int tabSlidingHeight = 3;
/** tab滑块颜色. */
private int tabSlidingColor = tabSelectColor;
/** 当前tab的位置. */
private int startX = 0;
/** The m width. */
private int mWidth = 0;
/**
* Instantiates a new ab bottom tab view.
*
* @param context the context
* @param attrs the attrs
*/
public AbBottomTabView(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
this.setOrientation(LinearLayout.VERTICAL);
this.setBackgroundColor(Color.rgb(255, 255, 255));
mTabLayout = new LinearLayout(context);
mTabLayout.setOrientation(LinearLayout.HORIZONTAL);
mTabLayout.setGravity(Gravity.CENTER);
//内容的View的适配
mViewPager = new AbViewPager(context);
//手动创建的ViewPager,必须调用setId()方法设置一个id
mViewPager.setId(1985);
pagerItemList = new ArrayList<Fragment>();
this.addView(mViewPager,new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT,0,1));
//页卡滑动图片
mTabImg = new ImageView(context);
mTabImg.setBackgroundColor(tabSlidingColor);
this.addView(mTabImg,new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,tabSlidingHeight));
this.addView(mTabLayout, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
//定义Tab栏
tabItemList = new ArrayList<AbTabItemView>();
tabItemTextList = new ArrayList<String>();
tabItemDrawableList = new ArrayList<Drawable>();
//要求必须是FragmentActivity的实例
if(!(this.context instanceof FragmentActivity)){
AbLogUtil.e(AbBottomTabView.class, "构造AbSlidingTabView的参数context,必须是FragmentActivity的实例。");
}
DisplayMetrics mDisplayMetrics = AbAppUtil.getDisplayMetrics(context);
mWidth = mDisplayMetrics.widthPixels;
FragmentManager mFragmentManager = ((FragmentActivity)this.context).getFragmentManager();
mFragmentPagerAdapter = new AbFragmentPagerAdapter(
mFragmentManager, pagerItemList);
mViewPager.setAdapter(mFragmentPagerAdapter);
mViewPager.setOnPageChangeListener(new MyOnPageChangeListener());
mViewPager.setOffscreenPageLimit(3);
}
/**
* The listener interface for receiving myOnPageChange events.
* The class that is interested in processing a myOnPageChange
* event implements this interface, and the object created
* with that class is registered with a component using the
* component's <code>addMyOnPageChangeListener<code> method. When
* the myOnPageChange event occurs, that object's appropriate
* method is invoked.
*
* @see MyOnPageChangeEvent
*/
public class MyOnPageChangeListener implements OnPageChangeListener{
/* (non-Javadoc)
* @see android.support.v4.view.ViewPager.OnPageChangeListener#onPageScrollStateChanged(int)
*/
@Override
public void onPageScrollStateChanged(int arg0) {
if(mListener!=null){
mListener.onPageScrollStateChanged(arg0);
}
}
/* (non-Javadoc)
* @see android.support.v4.view.ViewPager.OnPageChangeListener#onPageScrolled(int, float, int)
*/
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
if(mListener!=null){
mListener.onPageScrolled(arg0,arg1,arg2);
}
}
/* (non-Javadoc)
* @see android.support.v4.view.ViewPager.OnPageChangeListener#onPageSelected(int)
*/
@Override
public void onPageSelected(int arg0) {
setCurrentItem(arg0);
if(mListener!=null){
mListener.onPageSelected(arg0);
}
}
}
/**
* 描述：设置显示哪一个.
*
* @param index the new current item
*/
public void setCurrentItem(int index) {
if (mViewPager == null) {
throw new IllegalStateException("ViewPager has not been bound.");
}
mSelectedTabIndex = index;
final int tabCount = mTabLayout.getChildCount();
for (int i = 0; i < tabCount; i++) {
final AbTabItemView child = (AbTabItemView)mTabLayout.getChildAt(i);
final boolean isSelected = (i == index);
child.setSelected(isSelected);
if (isSelected) {
if(tabBackgroundResource!=-1){
child.setTabBackgroundResource(tabBackgroundResource);
}
if(tabItemDrawableList.size() >= tabCount*2){
child.setTabCompoundDrawables(null, tabItemDrawableList.get(index*2+1), null, null);
}else if(tabItemDrawableList.size() >= tabCount){
child.setTabCompoundDrawables(null, tabItemDrawableList.get(index), null, null);
}
child.setTabTextColor(tabSelectColor);
mViewPager.setCurrentItem(index);
}else{
if(tabBackgroundResource!=-1){
child.setTabBackgroundDrawable(null);
}
if(tabItemDrawableList.size() >= tabCount*2){
child.setTabCompoundDrawables(null, tabItemDrawableList.get(i*2), null, null);
}
child.setTabTextColor(tabTextColor);
}
}
//判断滑动距离
int itemWidth = mWidth/tabItemList.size();
LayoutParams mParams = new LayoutParams(itemWidth,tabSlidingHeight);
mParams.topMargin = -tabSlidingHeight;
mTabImg.setLayoutParams(mParams);
int toX = itemWidth*index;
imageSlide(mTabImg,startX,toX,0,0);
startX = toX;
mSelectedTabIndex = index;
}
/**
* 描述：设置一个外部的监听器.
*
* @param listener the new on page change listener
*/
public void setOnPageChangeListener(ViewPager.OnPageChangeListener listener) {
mListener = listener;
}
/* (non-Javadoc)
* @see android.widget.LinearLayout#onMeasure(int, int)
*/
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
/**
* 描述：设置单个tab的背景选择器.
*
* @param resid the new tab background resource
*/
public void setTabBackgroundResource(int resid) {
tabBackgroundResource = resid;
}
/**
* 描述：设置Tab的背景.
*
* @param resid the new tab layout background resource
*/
public void setTabLayoutBackgroundResource(int resid) {
this.mTabLayout.setBackgroundResource(resid);
}
/**
* Gets the tab text size.
*
* @return the tab text size
*/
public int getTabTextSize() {
return tabTextSize;
}
/**
* Sets the tab text size.
*
* @param tabTextSize the new tab text size
*/
public void setTabTextSize(int tabTextSize) {
this.tabTextSize = tabTextSize;
}
/**
* 描述：设置tab文字的颜色.
*
* @param tabColor the new tab text color
*/
public void setTabTextColor(int tabColor) {
this.tabTextColor = tabColor;
}
/**
* 描述：设置选中的颜色.
*
* @param tabColor the new tab select color
*/
public void setTabSelectColor(int tabColor) {
this.tabSelectColor = tabColor;
}
/**
* 描述：创造一个Tab.
*
* @param text the text
* @param index the index
*/
private void addTab(String text, int index) {
addTab(text,index,null);
}
/**
* 描述：创造一个Tab.
*
* @param text the text
* @param index the index
* @param top the top
*/
private void addTab(String text, int index,Drawable top) {
AbTabItemView tabView = new AbTabItemView(this.context);
if(top!=null){
tabView.setTabCompoundDrawables(null, top, null, null);
tabView.setTabCompoundDrawablesBounds(mDrawablesBoundsLeft, mDrawablesBoundsTop, mDrawablesBoundsRight, mDrawablesBoundsBottom);
}
tabView.setTabTextColor(tabTextColor);
tabView.setTabTextSize(tabTextSize);
tabView.init(index,text);
tabItemList.add(tabView);
tabView.setOnClickListener(mTabClickListener);
mTabLayout.addView(tabView, new LayoutParams(0,LayoutParams.WRAP_CONTENT,1));
}
/**
* 描述：图片尺寸,在addItemViews之前设置.
*
* @param left the left
* @param top the top
* @param right the right
* @param bottom the bottom
*/
public void setTabCompoundDrawablesBounds(int left, int top, int right, int bottom){
mDrawablesBoundsLeft = left;
mDrawablesBoundsTop = top;
mDrawablesBoundsRight = right;
mDrawablesBoundsBottom = bottom;
}
/**
* 描述：tab有变化刷新.
*/
public void notifyTabDataSetChanged() {
mTabLayout.removeAllViews();
tabItemList.clear();
final int count = mFragmentPagerAdapter.getCount();
for (int i = 0; i < count; i++) {
if(tabItemDrawableList.size()>=count*2){
addTab(tabItemTextList.get(i), i,tabItemDrawableList.get(i*2));
}else if(tabItemDrawableList.size()>=count){
addTab(tabItemTextList.get(i), i,tabItemDrawableList.get(i));
}else{
addTab(tabItemTextList.get(i), i);
}
}
if (mSelectedTabIndex > count) {
mSelectedTabIndex = count - 1;
}
setCurrentItem(mSelectedTabIndex);
requestLayout();
}
/**
* 描述：增加一组内容与tab.
*
* @param tabTexts the tab texts
* @param fragments the fragments
*/
public void addItemViews(List<String> tabTexts,List<Fragment> fragments){
tabItemTextList.addAll(tabTexts);
pagerItemList.addAll(fragments);
mFragmentPagerAdapter.notifyDataSetChanged();
notifyTabDataSetChanged();
}
/**
* 描述：增加一组内容与tab附带顶部图片.
*
* @param tabTexts the tab texts
* @param fragments the fragments
* @param drawables the drawables
*/
public void addItemViews(List<String> tabTexts,List<Fragment> fragments,List<Drawable> drawables){
tabItemTextList.addAll(tabTexts);
pagerItemList.addAll(fragments);
tabItemDrawableList.addAll(drawables);
mFragmentPagerAdapter.notifyDataSetChanged();
notifyTabDataSetChanged();
}
/**
* 描述：增加一个内容与tab.
*
* @param tabText the tab text
* @param fragment the fragment
*/
public void addItemView(String tabText,Fragment fragment){
tabItemTextList.add(tabText);
pagerItemList.add(fragment);
mFragmentPagerAdapter.notifyDataSetChanged();
notifyTabDataSetChanged();
}
/**
* 描述：增加一个内容与tab.
*
* @param tabText the tab text
* @param fragment the fragment
* @param drawableNormal the drawable normal
* @param drawablePressed the drawable pressed
*/
public void addItemView(String tabText,Fragment fragment,Drawable drawableNormal,Drawable drawablePressed){
tabItemTextList.add(tabText);
pagerItemList.add(fragment);
tabItemDrawableList.add(drawableNormal);
tabItemDrawableList.add(drawablePressed);
mFragmentPagerAdapter.notifyDataSetChanged();
notifyTabDataSetChanged();
}
/**
* 描述：删除某一个.
*
* @param index the index
*/
public void removeItemView(int index){
mTabLayout.removeViewAt(index);
pagerItemList.remove(index);
tabItemList.remove(index);
tabItemDrawableList.remove(index);
mFragmentPagerAdapter.notifyDataSetChanged();
notifyTabDataSetChanged();
}
/**
* 描述：删除所有.
*/
public void removeAllItemViews(){
mTabLayout.removeAllViews();
pagerItemList.clear();
tabItemList.clear();
tabItemDrawableList.clear();
mFragmentPagerAdapter.notifyDataSetChanged();
notifyTabDataSetChanged();
}
/**
* 描述：获取这个View的ViewPager.
*
* @return the view pager
*/
public ViewPager getViewPager() {
return mViewPager;
}
/**
* 描述：设置每个tab的边距.
*
* @param left the left
* @param top the top
* @param right the right
* @param bottom the bottom
*/
public void setTabPadding(int left, int top, int right, int bottom) {
for(int i = 0;i<tabItemList.size();i++){
AbTabItemView tabView = tabItemList.get(i);
tabView.setPadding(left, top, right, bottom);
}
}
/**
* Sets the sliding enabled.
*
* @param sliding the new sliding enabled
*/
public void setSlidingEnabled(boolean sliding) {
mViewPager.setPagingEnabled(sliding);
}
/**
* Gets the tab sliding color.
*
* @return the tab sliding color
*/
public int getTabSlidingColor() {
return tabSlidingColor;
}
/**
* Sets the tab sliding color.
*
* @param tabSlidingColor the new tab sliding color
*/
public void setTabSlidingColor(int tabSlidingColor) {
this.tabSlidingColor = tabSlidingColor;
this.mTabImg.setBackgroundColor(tabSlidingColor);
}
/**
* 描述：滑动动画.
*
* @param v the v
* @param startX the start x
* @param toX the to x
* @param startY the start y
* @param toY the to y
*/
public void imageSlide(View v, int startX, int toX, int startY, int toY) {
TranslateAnimation anim = new TranslateAnimation(startX, toX, startY, toY);
anim.setDuration(100);
anim.setFillAfter(true);
v.startAnimation(anim);
}
}