在查看尋呼機中使用字體真棒

Question

我知道如何在View Pager中使用字符串作爲標題，但現在我想將字體真棒整合到它中。我不知道如何在View Pager中使用自定義類型的面。這裏是我的viewPagerAdapter代碼：

package com.example.skmishra.customiconsviewpager; 

    import android.content.Context; 
    import android.graphics.Typeface; 
    import android.graphics.drawable.Drawable; 
    import android.support.v4.app.Fragment; 
    import android.support.v4.app.FragmentManager; 
    import android.support.v4.app.FragmentStatePagerAdapter; 
    import android.support.v4.app.FragmentTransaction; 
    import android.support.v4.view.ViewPager; 
    import android.support.v7.app.ActionBar; 
    import android.text.Spannable; 
    import android.text.SpannableString; 
    import android.text.SpannableStringBuilder; 


public class ViewPagerAdapter extends FragmentStatePagerAdapter implements    ActionBar.TabListener , ViewPager.OnPageChangeListener { 

String Titles[]; // This will Store the Titles of the Tabs which are Going to be passed when ViewPagerAdapter is created 
int NumbOfTabs; // Store the number of tabs, this will also be passed when the ViewPagerAdapter is created 
private final ActionBar mActionBar; 
Context context; 

     ViewPager mPager; 
     Typeface font; 

      // Build a Constructor and assign the passed Values to appropriate values in the class 
     public ViewPagerAdapter(FragmentManager fm, String mTitles[], int mNumbOfTabsumb, ActionBar mActionBar,Context context,ViewPager pager) { 
      super(fm); 

      this.Titles = mTitles; 
      this.NumbOfTabs = mNumbOfTabsumb; 

      this.context=context; 

      this.mActionBar = mActionBar; 
      this.mPager=pager; 
     } 

      //This method return the fragment for the every position in the View Pager 
     @Override 
     public Fragment getItem(int position) { 

      if(position==0) 
      { 
       fragment_tab_bio tab1=new fragment_tab_bio(); 

       return tab1; 
      } 
      else if(position==1) 
      { 
       fragment_tab_movies tab2=new fragment_tab_movies(); 
       return tab2; 
      } 
      else 
      { 
       fragment_tab_funStuff tab3=new fragment_tab_funStuff(); 
       return tab3; 

      } 

     } 



     @Override 
     public CharSequence getPageTitle(int position) { 
      Typeface font = Typeface.createFromAsset(context.getAssets(), "fontawesome-webfont.ttf"); 
      String title = ""; 

      title = Titles[position]; 


      SpannableString styled = new SpannableString(title); 
      styled.setSpan(new CustomTypefaceSpan("",font), 0, title.length(), Spannable.SPAN_EXCLUSIVE_INCLUSIVE); 

      return styled; 
     } 
      // This method return the Number of tabs for the tabs Strip 

     @Override 
     public int getCount() { 
      return NumbOfTabs; 
     } 

     @Override 
     public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { 

     } 

     @Override 
     public void onPageSelected(int position) { 



     } 

     @Override 
     public void onPageScrollStateChanged(int state) { 

     } 

     @Override 
     public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) { 

     } 

     @Override 
     public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) { 

     } 

     @Override 
     public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) { 

     } 
     } 

定製字樣跨度類

package com.example.skmishra.customiconsviewpager; 

import android.graphics.Paint; 
import android.graphics.Typeface; 
import android.text.TextPaint; 
import android.text.style.TypefaceSpan; 

public class CustomTypefaceSpan extends TypefaceSpan { 

    private final Typeface newType; 

    public CustomTypefaceSpan(String family, Typeface type) { 
     super(family); 
     newType = type; 
    } 

    @Override 
    public void updateDrawState(TextPaint ds) { 
     applyCustomTypeFace(ds, newType); 
    } 

    @Override 
    public void updateMeasureState(TextPaint paint) { 
     applyCustomTypeFace(paint, newType); 
    } 

    private static void applyCustomTypeFace(Paint paint, Typeface tf) { 
     int oldStyle; 
     Typeface old = paint.getTypeface(); 
     if (old == null) { 
      oldStyle = 0; 
     } else { 
      oldStyle = old.getStyle(); 
     } 

     int fake = oldStyle & ~tf.getStyle(); 
     if ((fake & Typeface.BOLD) != 0) { 
      paint.setFakeBoldText(true); 
     } 

     if ((fake & Typeface.ITALIC) != 0) { 
      paint.setTextSkewX(-0.25f); 
     } 

     paint.setTypeface(tf); 
    } 
} 

Answer 1

那麼答案就在由谷歌的slidingTabLayout.java文件。在那個文件中只需要populataTabStrip函數。在那個函數中，找到setText（getPageTitle（position）），就在這之前，使用setTypeface函數和你的Typeface對象作爲參數。你完成了