我使用TabLayout
和ViewPager
,我想知道如何最有效地更改TabLayout中所选标签图标的颜色。
Google的Youtube应用是完美的参考方式。在主页面上,有四个图标为深灰色。选择特定选项卡后,选项卡的图标将变为白色。
没有任何第三方库,我怎样才能达到同样的效果?
一个可能的解决方案显然是选择器。但在这种情况下,我必须同时找到图标的白色和灰色版本,然后在选中或取消选择选项卡时切换图标。我想知道是否有更有效的方法,我可以突出显示图标颜色或其他东西。我还没有在任何教程中找到这个。
修改
我直接在上面提到的解决方案需要为每个标签的图标使用两个drawable。我想知道是否有一种方法可以通过 ONE 为每个标签的图标进行编程。
答案 0 :(得分:77)
我找到了一种方便的方法。
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
tabLayout.setOnTabSelectedListener(
new TabLayout.ViewPagerOnTabSelectedListener(viewPager) {
@Override
public void onTabSelected(TabLayout.Tab tab) {
super.onTabSelected(tab);
int tabIconColor = ContextCompat.getColor(context, R.color.tabSelectedIconColor);
tab.getIcon().setColorFilter(tabIconColor, PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
super.onTabUnselected(tab);
int tabIconColor = ContextCompat.getColor(context, R.color.tabUnselectedIconColor);
tab.getIcon().setColorFilter(tabIconColor, PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
super.onTabReselected(tab);
}
}
);
答案 1 :(得分:38)
private void setupTabIcons() {
tabLayout.getTabAt(0).setIcon(tabIcons[0]);
tabLayout.getTabAt(1).setIcon(tabIcons[1]);
tabLayout.getTabAt(2).setIcon(tabIcons[2]);
tabLayout.getTabAt(3).setIcon(tabIcons[3]);
tabLayout.getTabAt(0).getIcon().setColorFilter(Color.GREEN, PorterDuff.Mode.SRC_IN);
tabLayout.getTabAt(1).getIcon().setColorFilter(Color.parseColor("#a8a8a8"), PorterDuff.Mode.SRC_IN);
tabLayout.getTabAt(2).getIcon().setColorFilter(Color.parseColor("#a8a8a8"), PorterDuff.Mode.SRC_IN);
tabLayout.getTabAt(3).getIcon().setColorFilter(Color.parseColor("#a8a8a8"), PorterDuff.Mode.SRC_IN);
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
tab.getIcon().setColorFilter(Color.GREEN, PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
tab.getIcon().setColorFilter(Color.parseColor("#a8a8a8"), PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
答案 2 :(得分:33)
您可以使用ColorStateList。
首先,创建一个看起来像这样的xml文件(例如/color/tab_icon.xml
)并定义不同状态的不同色调:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="@color/icon_light"
android:state_selected="true" />
<item android:color="@color/icon_light_inactive" />
</selector>
然后将其添加到您的代码中:
ColorStateList colors;
if (Build.VERSION.SDK_INT >= 23) {
colors = getResources().getColorStateList(R.color.tab_icon, getTheme());
}
else {
colors = getResources().getColorStateList(R.color.tab_icon);
}
for (int i = 0; i < tabLayout.getTabCount(); i++) {
TabLayout.Tab tab = tabLayout.getTabAt(i);
Drawable icon = tab.getIcon();
if (icon != null) {
icon = DrawableCompat.wrap(icon);
DrawableCompat.setTintList(icon, colors);
}
}
首先,从XML中获取ColorStateList(不使用主题的方法,但对于Marshmallow之前的设备是必需的)。然后为每个选项卡的图标设置它的TintList到ColorStateList;使用DrawableCompat(支持库)也支持旧版本。
就是这样!
答案 3 :(得分:12)
对于它你必须使用每个标签的选择器类来自定义标签图标,如:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/advisory_selected" android:state_selected="true" />
<item android:drawable="@drawable/advisory_normal" android:state_selected="false" />
答案 4 :(得分:11)
这可以非常简单地完全在xml中完成。
在XML app:tabIconTint="@color/your_color_selector"
中的TabLayout中添加一行,如下所示:
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabIconTint="@color/your_color_selector"
app:tabIndicatorColor="@color/selected_color"/>
然后,在res / color目录中创建一个颜色选择器文件(上面名为“ your_color_selector.xml”):
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="@color/selected_color" android:state_selected="true"/>
<item android:color="@color/unselected_color"/>
</selector>
假设您的colors.xml文件中有“ selected_color”和“ unselected_color”两种颜色。
答案 5 :(得分:3)
为什么不为图标使用图标字体(如字体真棒)?然后将标签文本的字体更改为您想要的字体图标.ttf并享受将所选文本颜色更改为标签图标!
我,我自己,使用这种方法,它真的很干净:)
首先,从您想要的图标字体设置标题:
在string.xml中:
<string name="ic_calculator"></string>
<string name="ic_bank"></string>
然后在MainActivity.Java中:
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new FragmentBank(), getString(R.string.ic_bank));
adapter.addFragment(new FragmentCalculate(), getString(R.string.ic_calculator));
viewPager.setAdapter(adapter);
}
然后你应该将Tab标题的字体改为font-awesome:
Typeface typeFaceFont = Typeface.createFromAsset(getAssets(), "fontawesome-webfont.ttf");
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
ViewGroup vg = (ViewGroup) tabLayout.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 TextView) {
((TextView) tabViewChild).setTypeface(typeFaceFont);
}
}
}
最后但并非最不重要的是,在相关的.xml文件中,为tabTextColor和tabSelectedTextColor设置颜色:
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="horizontal"
android:background="@color/colorPrimaryDark"
app:tabSelectedTextColor="@color/colorAccent"
app:tabTextColor="@color/textColorPrimary"
app:tabIndicatorColor="@color/colorAccent"
app:tabMode="fixed"
app:tabGravity="fill"/>
</android.support.design.widget.AppBarLayout>
并在colors.xml中:
<resources>
<color name="colorPrimary">#3F51B5</color>
<color name="colorPrimaryDark">#303F9F</color>
<color name="colorAccent">#FF4081</color>
<color name="colorHighlight">#FFFFFF</color>
<color name="textColorPrimary">#E1E3F3</color>
</resources>
答案 6 :(得分:3)
检查以下代码。自定义您的图标一个是彩色,另一个是没有颜色。
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/mybookings_select" android:state_selected="true"/><!-- tab is selected(colored icon)-->
<item android:drawable="@drawable/mybookings" /><!-- tab is not selected(normal no color icon)-->
答案 7 :(得分:3)
将此添加到res > colors
目录下:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_selected="true" android:color="@android:color/holo_orange_dark"/>
<item android:color="@android:color/holo_red_light"/>
</selector>
在xml标签视图中添加代码:
app:tabIconTint="@color/selector_tab"
答案 8 :(得分:2)
为了改变色调,即使你可以设置相同的颜色,你可以绘制标签图标
$sort
<块引用>
tab_search_text_clr.xml
<com.google.android.material.tabs.TabLayout
android:id="@+id/tabs"
android:background="@color/bgFrag"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:layout_gravity="bottom"
app:tabGravity="fill"
app:tabTextColor="@drawable/tab_search_text_clr"
app:tabIconTintMode="multiply"
app:tabIconTint="#ffffff"
app:tabIndicator="@null"
app:tabTextAppearance="@android:style/TextAppearance.Widget.TabWidget"
app:tabInlineLabel="true"
app:tabMode="fixed" >
</com.google.android.material.tabs.TabLayout>
答案 9 :(得分:1)
在参考显示如何分别设置颜色的第二个答案时,许多人可能想知道如何在切换到下一个图标时删除第一个图标的颜色。你能做的就是这样:
private void setupTabIcons() {
tabLayout.getTabAt(0).setIcon(tabIcons[0]);
tabLayout.getTabAt(1).setIcon(tabIcons[1]);
tabLayout.getTabAt(2).setIcon(tabIcons[2]);
tabLayout.getTabAt(3).setIcon(tabIcons[3]);
tabLayout.getTabAt(0).getIcon().setColorFilter(Color.GREEN, PorterDuff.Mode.SRC_IN);
tabLayout.getTabAt(1).getIcon().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN);
tabLayout.getTabAt(2).getIcon().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN);
tabLayout.getTabAt(3).getIcon().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN);
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
tab.getIcon().setColorFilter(Color.GREEN,PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
//for removing the color of first icon when switched to next tab
tablayout.getTabAt(0).getIcon().clearColorFilter();
//for other tabs
tab.getIcon().clearColorFilter();
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});}
我会对第二个答案发表评论,但没有足够的声誉!抱歉。但请注意,以节省您的时间和头痛!快乐学习
答案 10 :(得分:1)
一种可能的方式&#34;突出显示&#34;该图标用于访问图像视图并设置滤色器。尝试使用setColorFilter(int color)ImageView方法并应用白色。
答案 11 :(得分:0)
tabLayout.setOnTabSelectedListener(new TabLayout.ViewPagerOnTabSelectedListener(viewPager) {...}
已弃用。宁可使用
tabLayout.addOnTabSelectedListener(new TabLayout.BaseOnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
int tabIconColor = ContextCompat.getColor(context, R.color.tabSelectedIconColor);
tab.getIcon().setColorFilter(tabIconColor, PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
int tabIconColor = ContextCompat.getColor(context, R.color.tabUnselectedIconColor);
tab.getIcon().setColorFilter(tabIconColor, PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
答案 12 :(得分:0)
检查以下代码:
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
if(tab.getPosition() == 0){
tabLayout.getTabAt(0).setIcon(tabIcons1[0]);
}
if(tab.getPosition() == 1){
tabLayout.getTabAt(1).setIcon(tabIcons1[1]);
}
if(tab.getPosition() == 2){
tabLayout.getTabAt(2).setIcon(tabIcons1[2]);
}
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
tabLayout.getTabAt(0).setIcon(tabIcons[0]);
tabLayout.getTabAt(1).setIcon(tabIcons[1]);
tabLayout.getTabAt(2).setIcon(tabIcons[2]);
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
答案 13 :(得分:0)
您可以使用以下标签布局的xml属性更改所选标签的文本颜色:
app:tabSelectedTextColor="your desired color"
要自定义所选标签的图标颜色,您需要使用选择器 在可绘制文件夹下创建一个xml文件:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="selected_item_color" android:state_activated="true" />
<item android:color="unselected_item_color" />
</selector>
并将此选择器添加到选项卡布局xml属性中,如下所示:
app:tabIconTint="@drawable/name_of_file"
答案 14 :(得分:0)
您可以使用addOnTabSelectedListener
,它对我有用。
tablayout = findViewById(R.id.viewall_tablayout);
pager = findViewById(R.id.viewall_pager);
adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragments(new RestFragment(),"Restaurant");
adapter.addFragments(new BarFragment(),"Bar");
adapter.addFragments(new HotelFragment(),"Hotel");
adapter.addFragments(new CoffeeFragment(),"Coffee Shop");
pager.setAdapter(adapter);
tablayout.setupWithViewPager(pager);
tablayout.getTabAt(0).setIcon(R.drawable.ic_restaurant);
tablayout.getTabAt(1).setIcon(R.drawable.ic_glass_and_bottle_of_wine);
tablayout.getTabAt(2).setIcon(R.drawable.ic_hotel_black_24dp);
tablayout.getTabAt(3).setIcon(R.drawable.ic_hot_coffee);
tablayout.getTabAt(0).getIcon().setTint(getResources().getColor(R.color.colorAccent,getTheme()));
tablayout.getTabAt(1).getIcon().setTint(getResources().getColor(R.color.colorAccent,getTheme()));
tablayout.getTabAt(2).getIcon().setTint(getResources().getColor(R.color.colorAccent,getTheme()));
tablayout.getTabAt(3).getIcon().setTint(getResources().getColor(R.color.colorAccent,getTheme()));
tablayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
tab.getIcon().setTint(getResources().getColor(R.color.colorPrimary,getTheme()));
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
tab.getIcon().setTint(getResources().getColor(R.color.colorAccent,getTheme()));
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
答案 15 :(得分:0)
app / src / main / res / values / colors.xml(添加到colors.xml)
<color name="icon_enabled">#F3D65F</color>
<color name="icon_disabled">#FFFFFF</color>
app / src / main / res / color / custom_tab_icon.xml(在res中创建一个名为color的文件夹。在该文件夹中创建一个自定义标签icon.xml。)
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="@color/icon_enabled" android:state_selected="true"/>
<item android:color="@color/icon_disabled" android:state_selected="false"/>
</selector>
app / src / main / res / drawable / ic_action_settings.png(创建)
双击action_settings进行添加
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="21.6"
android:viewportHeight="21.6"
android:tint="@color/custom_tab_icon">
<group android:translateX="-1.2"
android:translateY="-1.2">
<path
android:fillColor="#FF000000"
android:pathData="M19.1,12.9a2.8,2.8 0,0 0,0.1 -0.9,2.8 2.8,0 0,0 -0.1,-0.9l2.1,-1.6a0.7,0.7 0,0 0,0.1 -0.6L19.4,5.5a0.7,0.7 0,0 0,-0.6 -0.2l-2.4,1a6.5,6.5 0,0 0,-1.6 -0.9l-0.4,-2.6a0.5,0.5 0,0 0,-0.5 -0.4H10.1a0.5,0.5 0,0 0,-0.5 0.4L9.3,5.4a5.6,5.6 0,0 0,-1.7 0.9l-2.4,-1a0.4,0.4 0,0 0,-0.5 0.2l-2,3.4c-0.1,0.2 0,0.4 0.2,0.6l2,1.6a2.8,2.8 0,0 0,-0.1 0.9,2.8 2.8,0 0,0 0.1,0.9L2.8,14.5a0.7,0.7 0,0 0,-0.1 0.6l1.9,3.4a0.7,0.7 0,0 0,0.6 0.2l2.4,-1a6.5,6.5 0,0 0,1.6 0.9l0.4,2.6a0.5,0.5 0,0 0,0.5 0.4h3.8a0.5,0.5 0,0 0,0.5 -0.4l0.3,-2.6a5.6,5.6 0,0 0,1.7 -0.9l2.4,1a0.4,0.4 0,0 0,0.5 -0.2l2,-3.4c0.1,-0.2 0,-0.4 -0.2,-0.6ZM12,15.6A3.6,3.6 0,1 1,15.6 12,3.6 3.6,0 0,1 12,15.6Z"/>
</group>
</vector>
答案 16 :(得分:0)
我知道这有点旧,但我刚刚面临同样的问题,而且这里的答案似乎已经过时。
使用颜色状态列表并将其直接添加到 TabLayout XML 元素
鉴于下面的 tab_icon.xml 文件:-
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="@color/colorPrimary" android:state_selected="true" />
<item android:color="@android:color/darker_gray" />
</selector>
和 TabLayout XML 元素(注意 tabIconTint 属性)
<com.google.android.material.tabs.TabLayout
android:id="@+id/favourites_selectionTL"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:tabIconTint="@color/tab_icon"
app:tabIndicatorColor="@color/colorPrimary"
app:tabInlineLabel="true"
app:tabSelectedTextColor="@color/colorPrimary" />
就是这样。
答案 17 :(得分:-1)
使用here中的ColorStateList扩展我的首选答案,如果您使用自定义标签,则可以使用以下解决方案。
在活动的xml中设置标签
...
<android.support.design.widget.TabLayout
android:id="@+id/main_tablayout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TabItem
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout="@layout/nav_bar_tab_item"/>
<android.support.design.widget.TabItem
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout="@layout/nav_bar_tab_item"/>
</android.support.design.widget.TabLayout>
...
自定义标签布局nav_bar_item.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
android:id="@+id/nav_bar_item_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingEnd="@dimen/_5sdp"
android:paddingStart="@dimen/_5sdp">
<ImageView
android:id="@+id/item_img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<TextView
android:id="@+id/item_description"
android:layout_width="wrap_content"
android:gravity="center"
<!-- Use selector here to change the text color when selected/unselected -->
android:textColor="@color/nav_bar_icons_color"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/item_img"/>
</android.support.constraint.ConstraintLayout>
在您的活动中
tabLayout = findViewById(R.id.main_tablayout);
ConstraintLayout navMyHotelLayout = (ConstraintLayout) tabLayout.getTabAt(0)
.getCustomView();
tab1Icon = navMyHotelLayout.findViewById(R.id.item_img);
tab1TextView = navMyHotelLayout.findViewById(R.id.item_description);
tab1Icon.setImageResource(R.drawable.ic_tab1);
// Use the selector here to change the color when selected/unselected
tintImageViewSelector(tab1Icon, R.color.nav_bar_icons_color);
tab1TextView.setText("tab 1");
ConstraintLayout navTtdLayout = (ConstraintLayout) tabLayout.getTabAt(1)
.getCustomView();
tab2Icon = navTtdLayout.findViewById(R.id.item_img);
tab2View = navTtdLayout.findViewById(R.id.item_description);
tab2Icon.setImageResource(R.drawable.ic_tab2);
tintImageViewSelector(tab2Icon, R.color.nav_bar_icons_color);
tab2TextView.setText("tab 2");
并添加这些辅助函数以更改颜色
public static void tintDrawableSelector(Drawable vd, final @ColorRes int clrRes, Context context) {
DrawableCompat.setTintList(vd, ContextCompat.getColorStateList(context, clrRes));
}
public static void tintImageViewSelector(ImageView imgView, final @ColorRes int clrRes, Context context) {
tintDrawableSelector(imgView.getDrawable(), clrRes);
}
最后,选择器nav_bar_icons_color.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="@android:color/white" android:state_checked="true"/>
<item android:color="@android:color/white" android:state_selected="true"/>
<item android:color="@android:color/black"/>
</selector>