android开发之高仿微信6.0+滑动Tab逐渐变色

一自定义WeiXinTabChangeView

1 自定义属性attrs.xml：

<?xml version="1.0" encoding="utf-8"?>

<declare-styleable name="WinXinTabView">

</declare-styleable>

</resources>

2 自定义 WeiXinTabChangeView类

public classWeiXinTabChangeViewextendsRelativeLayout {

privateContextmContext;

private booleanisChecked;//tab是否被选中

privateStringtable_title;//tab的标题

private floattabTitleSize;//标题的字体大小

private inttabTitleColor;//字体的颜色

//标题

privateTextViewtitle_one;

//二层标题

privateTextViewtitle_two;

//图标

privateDrawabletabIcon;

privateImageViewimageview_one;

//二层图标

privateDrawabletabIcon_two;

privateImageViewimageview_two;

//透明度

private floatmAlpha=1f;

private inttitleNolColor= Color.GRAY;

publicWeiXinTabChangeView(Context context) {

super(context);

}

publicWeiXinTabChangeView(Context context,AttributeSet attrs) {

super(context,attrs);

TypedArray typedArray = context.obtainStyledAttributes(attrs,R.styleable.WinXinTabView);//获取TypedArray从而获取属性

isChecked= typedArray.getBoolean(R.styleable.WinXinTabView_tabChecked, false);

table_title= typedArray.getString(R.styleable.WinXinTabView_tabTitle);

tabTitleSize= typedArray.getDimension(R.styleable.WinXinTabView_tabTitleSize,20);

tabTitleColor= typedArray.getColor(R.styleable.WinXinTabView_tabTitleColor,Color.GRAY);

tabIcon= typedArray.getDrawable(R.styleable.WinXinTabView_tabIcon);

tabIcon_two= typedArray.getDrawable(R.styleable.WinXinTabView_tabIconOver);

typedArray.recycle();

mContext= context;

initView();

}

publicWeiXinTabChangeView(Context context,AttributeSet attrs, intdefStyleAttr) {

super(context,attrs,defStyleAttr);

}

//初始化控件

private voidinitView() {

RelativeLayout.LayoutParams titleLayoutParams =newRelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);

titleLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);//父容器底部

titleLayoutParams.addRule(RelativeLayout.CENTER_HORIZONTAL,RelativeLayout.TRUE);

//二层标题

title_two=newTextView(mContext);

title_two.setId(R.id.title_two);//设置id

title_two.setLayoutParams(titleLayoutParams);

this.addView(title_two);//二层标题添加到控件中

//标题

title_one=newTextView(mContext);

title_one.setId(R.id.title_one);

title_one.setLayoutParams(titleLayoutParams);

this.addView(title_one);

//图标的layoutparams

RelativeLayout.LayoutParams iconLayoutParams =newRelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);

iconLayoutParams.addRule(RelativeLayout.CENTER_HORIZONTAL,RelativeLayout.TRUE);

iconLayoutParams.addRule(RelativeLayout.ABOVE,R.id.title_one);

//二层图标

imageview_two=newImageView(mContext);

imageview_two.setId(R.id.image_two);

imageview_two.setLayoutParams(iconLayoutParams);

this.addView(imageview_two);

//图标

imageview_one=newImageView(mContext);

imageview_one.setId(R.id.image_one);

imageview_one.setLayoutParams(iconLayoutParams);

this.addView(imageview_one);

//设置数据并刷新

refreshData();

}

private voidrefreshData() {

mAlpha=1;

setTitleOne();

setTitleTwo();

setIconOne();

setIconTwo();

}

//设置二层图标

private voidsetIconTwo() {

imageview_two.setImageDrawable(tabIcon_two);

if(isChecked){

imageview_two.setAlpha(mAlpha);

}else{

imageview_two.setAlpha(1-mAlpha);

}

//设置一层图标

private voidsetIconOne() {

imageview_one.setImageDrawable(tabIcon);

if(isChecked){

imageview_one.setAlpha(1-mAlpha);

}else{

imageview_one.setAlpha(mAlpha);

}

//设置二层标题

private voidsetTitleTwo() {

title_two.setText(table_title);

title_two.setTextColor(tabTitleColor);

if(isChecked){

title_two.setAlpha(mAlpha);

}else{

title_two.setAlpha(1-mAlpha);

}

//设置标题的

private voidsetTitleOne() {

title_one.setText(table_title);

title_one.setTextColor(titleNolColor);

if(isChecked){

title_one.setAlpha(1-mAlpha);

}else{

title_one.setAlpha(mAlpha);

}

/**

*设置选中状态

* */

public voidsetChecked(booleanisChecked) {

this.isChecked= isChecked;

setCheckedData();

}

/**

*选中之后重新设置数据

* */

private voidsetCheckedData(){

refreshData();

}

/**

*滑动时改变颜色

* */

public voidonScrolling(floatalpha){

mAlpha= alpha;

onScrollSetData();

}

/**

*滑动时设置图标透明度以及文字透明度

* */

private voidonScrollSetData(){

//设置图标透明度

imageview_one.setAlpha(1-mAlpha);

imageview_two.setAlpha(mAlpha);

//设置标题透明度

title_one.setAlpha(1-mAlpha);

title_two.setAlpha(mAlpha);

}

publicStringgetTitleText() {

returntable_title;

}

public voidsetTitleText(String titleText) {

this.table_title= titleText;

}

publicDrawablegetTabIcon() {

returntabIcon;

}

public voidsetTabIcon(Drawable tabIcon) {

this.tabIcon= tabIcon;

}

public booleanisChecked() {

returnisChecked;

}

publicImageViewgetIconImageView() {

returnimageview_one;

}

二自定义一个 viewGroup 来存放 WeiXinTabChangeView

public classTabGroupViewextendsLinearLayout {

privateArrayListtabViewList;

privateWeiXinTabVieOnItemClickweiXinTabVieOnItemClick;

publicTabGroupView(Context context) {

this(context,null);

}

publicTabGroupView(Context context,AttributeSet attrs) {

super(context,attrs);

tabViewList=newArrayList();

//设置默认的水平布局

this.setOrientation(HORIZONTAL);

}

/**

*选中某一个

* */

public voidsetCurrentItem(intitem){

changeItem();

WeiXinTabChangeView weiXinTab =tabViewList.get(item);

weiXinTab.setChecked(true);

}

/**

*清除选中状态

* */

private voidchangeItem(){

for(WeiXinTabChangeView weiXinTab :tabViewList){

weiXinTab.setChecked(false);

}

/**

*@paramposition当前界面索引

*@parampositionOffset滑动的百分比

* */

public voidonPageScrolling(intposition, floatpositionOffset) {

if(positionOffset>0){

WeiXinTabChangeView weiXinTab =tabViewList.get(position);

weiXinTab.onScrolling(1-positionOffset);

if(position+1

WeiXinTabChangeView nextweiXinTab =tabViewList.get(position+1);

nextweiXinTab.onScrolling(positionOffset);

}

/**

*点击事件

* */

public interfaceWeiXinTabVieOnItemClick{

voidonClick(intposition,WeiXinTabChangeView tabLayout);

}

/**

*设置每个Item的监听事件

* */

public voidsetOnItemClickListener(WeiXinTabVieOnItemClick weiXinTabVieOnItemClick) {

this.weiXinTabVieOnItemClick= weiXinTabVieOnItemClick;

initListener();

}

/**

*设置监听器

* */

private voidinitListener(){

intcount =this.getChildCount();

for(inti=0;i

finalWeiXinTabChangeView weiXinTab = (WeiXinTabChangeView)this.getChildAt(i);

tabViewList.add(weiXinTab);

final intfinalI = i;

weiXinTab.setOnClickListener(newOnClickListener() {

@Override

public voidonClick(View v) {

changeItem();//清除选中状态

weiXinTab.setChecked(true);

if(weiXinTabVieOnItemClick!=null){

weiXinTabVieOnItemClick.onClick(finalI,weiXinTab);

}

});

}

/**

*设置只能水平布局

* */

@Override

public voidsetOrientation(intorientation) {

super.setOrientation(HORIZONTAL);

}

三使用方法

1 布局中的使用方式

<?xml version="1.0"encoding="utf-8"?>

<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

xmlns:lishuai="http://schemas.android.com/apk/res-auto"

android:id="@+id/activity_main"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.example.lishuai.copyweixinhomedemo.ui.MainActivity">

<com.example.lishuai.copyweixinhomedemo.view.TabGroupView

android:id="@+id/tgv_weixingroup"

android:layout_alignParentBottom="true"

android:layout_width="match_parent"

android:layout_height="55dp"

android:paddingBottom="5dp"

android:paddingTop="5dp"

<com.example.lishuai.copyweixinhomedemo.view.WeiXinTabChangeView

android:layout_width="match_parent"

android:layout_height="match_parent"

android:id="@+id/tab_main"

android:layout_weight="1"

lishuai:tabTitle="微信"

lishuai:tabTitleColor="#FBA615"

lishuai:tabIcon="@mipmap/tab_1_false"

lishuai:tabIconOver="@mipmap/tab_1_true"

lishuai:tabChecked="true"/>

<com.example.lishuai.copyweixinhomedemo.view.WeiXinTabChangeView

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="1"

lishuai:tabTitle="微信"

lishuai:tabTitleColor="#FBA615"

lishuai:tabIcon="@mipmap/tab_1_false"

lishuai:tabIconOver="@mipmap/tab_1_true"

<com.example.lishuai.copyweixinhomedemo.view.WeiXinTabChangeView

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="1"

lishuai:tabTitle="微信"

lishuai:tabTitleColor="#FBA615"

lishuai:tabIcon="@mipmap/tab_1_false"

lishuai:tabIconOver="@mipmap/tab_1_true"

<com.example.lishuai.copyweixinhomedemo.view.WeiXinTabChangeView

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="1"

lishuai:tabTitle="微信"

lishuai:tabTitleColor="#FBA615"

lishuai:tabIcon="@mipmap/tab_1_false"

lishuai:tabIconOver="@mipmap/tab_1_true"

</com.example.lishuai.copyweixinhomedemo.view.TabGroupView>

<android.support.v4.view.ViewPager

android:id="@+id/viewpager"

android:layout_above="@id/tgv_weixingroup"

android:layout_width="match_parent"

android:layout_height="match_parent"/>

</RelativeLayout>

2代码中使用

public classMainActivityextendsAppCompatActivity {

privateTabGroupViewtabGroupView;

privateViewPagerviewpager;

private intmPosition=0;

@Override

protected voidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

initView();

}

private voidinitView() {

tabGroupView= (TabGroupView) findViewById(R.id.tgv_weixingroup);

viewpager= (ViewPager) findViewById(R.id.viewpager);

tabGroupView.setOnItemClickListener(newTabGroupView.WeiXinTabVieOnItemClick() {

@Override

public voidonClick(intposition,WeiXinTabChangeView tabLayout) {

Log.i("dfdf","选中的tablayout="+ position);

viewpager.setCurrentItem(position,false);

}

});

viewpager.setAdapter(newMainPagerAdapter(getSupportFragmentManager()));

viewpager.addOnPageChangeListener(newViewPager.OnPageChangeListener() {

@Override

public voidonPageScrolled(intposition, floatpositionOffset, intpositionOffsetPixels) {

tabGroupView.onPageScrolling(position,positionOffset);

}

@Override

public voidonPageSelected(intposition) {

mPosition= position;

tabGroupView.setCurrentItem(position);

}

@Override

public voidonPageScrollStateChanged(intstate) {

}

});

}

3 MainPagerAdapter

public classMainPagerAdapterextendsFragmentPagerAdapter {

publicMainPagerAdapter(FragmentManager fm) {

super(fm);

}

@Override

publicFragmentgetItem(intposition) {

returnFragmentFactory.create(position);

}

@Override

public intgetCount() {

return4;

}

4 FragmentFactory

public classFragmentFactory {

public staticFragmentcreate(intposition){

Fragment fragment =null;

switch(position) {

case0:

fragment =newWeiXinFragment();

break;

case1:

fragment =newTongXunLuFragment();

break;

case2:

fragment =newFindFragment();

break;

case3:

fragment =newMeFragment();

break;

}

returnfragment;

}

5 Fragment

public classWeiXinFragmentextendsFragment {

@Nullable

@Override

publicViewonCreateView(LayoutInflater inflater,@NullableViewGroup container,@NullableBundle savedInstanceState) {

TextView textView =newTextView(getActivity());

textView.setText(getClass().getSimpleName());

returntextView;

}

版权声明：本文来源简书，感谢博主原创文章，遵循 CC 4.0 by-sa 版权协议，转载请附上原文出处链接和本声明。
原文链接：https://www.jianshu.com/p/d923a64d5f6b
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发表于 2020-01-07 21:08:32
阅读 ( 1090 )
分类：

android开发之高仿微信6.0+滑动Tab逐渐变色

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