Android sets local font file ttf

Table of contents

foreword

①Use the typeface method

1. Create an instance of loading fonts

2. Use steps

1. Load fonts in Application

2. Use in xml

② Use the fontFamily method

1. Import the ttf file under res/font

 2. Use in xml

Summarize

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foreword

   The product tells you to use cool fonts when designing your UI. Because Android is not like a web project that can use the browser's native fonts, Android only has those fonts.

Two methods can be used:

• android:typeface="serif"

• android:fontFamily="@font/xxxx"

The typeface value is as follows

The fontFamily values ​​are as follows

sans serif

sans-serif-condensed

sans-serif-smallcaps

serif

serif-monospace

minivan

casual

cursive

 fontFamily priority is greater than typeface priority

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You can check the Android common font library below

Android comes with font library https://blog.csdn.net/weixin_41620505/article/details/114673516

①Use the typeface method

1. Create an instance of loading fonts

The reflection method used

import android.content.Context
import android.graphics.Typeface

object FontsOverride {

/**
*staticTypefaceFieldName :最好是 normal、sans、serif、monospace其中一个
*/
    fun setDefaultFont(context: Context, staticTypefaceFieldName: String, fontAssetName: String?) {
        val regular = Typeface.createFromAsset(context.assets, fontAssetName)
        replaceFont(staticTypefaceFieldName, regular)
    }

    internal fun replaceFont(staticTypefaceFieldName: String, newTypeface: Typeface?) {
        try {
            val staticField = Typeface::class.java.getDeclaredField(staticTypefaceFieldName)
            staticField.isAccessible = true
            staticField[null] = newTypeface
        } catch (e: NoSuchFieldException) {
            e.printStackTrace()
        } catch (e: IllegalAccessException) {
            e.printStackTrace()
        }
    }
}

2. Use steps

1. Load fonts in Application

Put the font ttf file in the assets/fonts directory, without this directory, create it manually

//staticTypefaceFieldName :最好是 normal、sans、serif、monospace其中一个
FontsOverride.setDefaultFont(this, "SERIF", "fonts/pangmenzhengdaobiaoti.ttf")

2. Use in xml

The code is as follows (example):

    <TextView
                android:id="@+id/newHomeLoction" 
                android:textColor="@color/white"
                android:textSize="26sp"
                android:typeface="serif"
                app:layout_constraintStart_toStartOf="@+id/newHomeLeaveTitle"
                app:layout_constraintTop_toBottomOf="@+id/newHomeLeaveTitle" />

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② Use the fontFamily method

1. Import the ttf file under res/font

As shown below:

 2. Use in xml

        <TextView
                android:id="@+id/newHomeLoction"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="1"
                android:gravity="bottom|end"
                android:includeFontPadding="false"
                android:paddingBottom="28dp"
                android:fontFamily="@font/pangiaoti"
                android:text="字体水水水水" />

Summarize

Using typeface does not require every TextView to be written, because there is a default font style (monospace)

Using the fontFamily method requires each TextView to be written once

 used in xml layout

1：

android:typeface

2：

android:fontFamily

Make a distinction