[英]Set Android Custom Font on Tab Title
我正在嘗試從下面的代碼中為標題(“Tab Item 1”、“Tab Item 2”、“Tab Item 3”)設置自定義字體。 我對 Android Studio 和 Java 真的很陌生,我只是邊做邊學,以及互聯網上的各種材料。
假設我的資產文件夾中已經有一個名為“abc.ttf”的字體,我該如何更改標簽標題的字體? 下面是我的 TabFragment.java
import android.graphics.Typeface;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.widget.AppCompatTextView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class TabFragment extends Fragment {
TabLayout mTabLayout;
ViewPager mViewPager;
private static final int int_items = 3;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
/**
*Inflate tab_layout and setup Views.
*/
View x = inflater.inflate(R.layout.tabbed_layout, null);
mTabLayout = (TabLayout) x.findViewById(R.id.tabs);
mViewPager = (ViewPager) x.findViewById(R.id.viewpager);
/**
*Set an Apater for the View Pager
*/
mViewPager.setAdapter(new MyAdapter(getChildFragmentManager()));
/**
* Now , this is a workaround ,
* The setupWithViewPager dose't works without the runnable .
* Maybe a Support Library Bug .
*/
mTabLayout.post(new Runnable() {
@Override
public void run() {
mTabLayout.setupWithViewPager(mViewPager);
}
});
return x;
}
class MyAdapter extends FragmentPagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
/**
* Return fragment with respect to Position .
*/
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new TabOneFragment();
case 1:
return new TabTwoFragment();
case 2:
return new TabThreeFragment();
}
return null;
}
@Override
public int getCount() {
return int_items;
}
/**
* This method returns the title of the tab according to the position.
*/
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Tab Item 1";
case 1:
return "Tab Item 2";
case 2:
return "Tab Item 3";
}
return null;
}
}
}
這是我的 tabbed_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
app:tabGravity="fill"
app:tabMode="fixed"
android:background="@color/white"
app:tabIndicatorColor="@color/colorPrimary"
app:tabSelectedTextColor="@color/colorPrimary"
app:tabTextColor="@color/black"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
</LinearLayout>
創建一個將從Tablayout
驅動的CustomTabLayout
類然后在xml
使用這個CustomTablayout
而不是Tablayout
import android.content.Context;
import android.graphics.Typeface;
import android.support.design.widget.TabLayout;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class CustomTabLayout extends TabLayout {
private Typeface mTypeface;
public CustomTabLayout(Context context) {
super(context);
init();
}
public CustomTabLayout(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public CustomTabLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
private void init() {
mTypeface = Typeface.createFromAsset(getContext().getAssets(), "your fonts"); // here you will provide fully qualified path for fonts
}
@Override
public void addTab(Tab tab) {
super.addTab(tab);
ViewGroup mainView = (ViewGroup) getChildAt(0);
ViewGroup tabView = (ViewGroup) mainView.getChildAt(tab.getPosition());
int tabChildCount = tabView.getChildCount();
for (int i = 0; i < tabChildCount; i++) {
View tabViewChild = tabView.getChildAt(i);
if (tabViewChild instanceof TextView) {
((TextView) tabViewChild).setTypeface(mTypeface, Typeface.NORMAL);
}
}
}
}
這就是您必須在 xml 中執行的操作。
<yourpackagename.CustomTabLayout
android:id="@+id/tabs"
app:tabGravity="fill"
app:tabMode="fixed"
android:background="@color/white"
app:tabIndicatorColor="@color/colorPrimary"
app:tabSelectedTextColor="@color/colorPrimary"
app:tabTextColor="@color/black"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
編輯
這個自定義類
package com.ifavaz.kulli;
/**
* Created by ifawaz on 12/11/16.
*/
import android.content.Context;
import android.graphics.Typeface;
import android.support.design.widget.TabLayout;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.widget.AppCompatTextView;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class CustomTabLayout extends TabLayout {
private Typeface mTypeface;
public CustomTabLayout(Context context) {
super(context);
init();
}
public CustomTabLayout(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public CustomTabLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
private void init() {
mTypeface = Typeface.createFromAsset(getContext().getAssets(), "fonts/AmazingDayEveryday.ttf"); // here you will provide fully qualified path for fonts
}
@Override
public void setupWithViewPager(ViewPager viewPager) {
super.setupWithViewPager(viewPager);
if (mTypeface != null) {
this.removeAllTabs();
ViewGroup slidingTabStrip = (ViewGroup) getChildAt(0);
PagerAdapter adapter = viewPager.getAdapter();
for (int i = 0, count = adapter.getCount(); i < count; i++) {
Tab tab = this.newTab();
this.addTab(tab.setText(adapter.getPageTitle(i)));
AppCompatTextView view = (AppCompatTextView) ((ViewGroup) slidingTabStrip.getChildAt(i)).getChildAt(1);
view.setTypeface(mTypeface, Typeface.NORMAL);
}
}
}
}
我希望這能幫到您
簡短的回答:您不需要創建自定義 TabLayout 類,只需在 xml 中為您的 TabLayout 提供一個主題,如下所示:
xml文件
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
app:tabGravity="fill"
app:tabMode="fixed"
android:background="@color/white"
app:tabIndicatorColor="@color/colorPrimary"
app:tabSelectedTextColor="@color/colorPrimary"
app:tabTextColor="@color/black"
android:layout_width="match_parent"
android:theme="@style/AppTheme.YourThemeName" <!-- This is the change -->
android:layout_height="wrap_content" />
樣式.xml 文件
<style name="AppTheme.YourThemeName" parent="ThemeOverlay.AppCompat.Light">
<item name="fontFamily">@font/your_font</item>
</style>
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