测试应用中有关字体设置的接口:
package com.gzgd.typefacetest;
import android.app.Activity;
import android.graphics.Typeface;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
public static final String TAG ="Typeface";
TextView tv;
Button bu1;
Button bu2;
int typefacenum=0;
int typestylenum=0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = findViewById(R.id.tv);
bu1 = (Button) findViewById(R.id.button1);
bu2 = (Button) findViewById(R.id.button2);
bu2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
switch ((++typefacenum)%4) {
case 1:
tv.setTypeface(Typeface.DEFAULT);
break;
case 2:
tv.setTypeface(Typeface.SERIF);
break;
case 3:
tv.setTypeface(Typeface.SANS_SERIF);
break;
case 4:
tv.setTypeface(Typeface.DEFAULT_BOLD);
break;
case 0:
tv.setTypeface(Typeface.MONOSPACE);
break;
default:
tv.setTypeface(Typeface.MONOSPACE);
}
}
});
bu1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
switch ((++typestylenum)%3) {
case 1:
tv.setTypeface(tv.getTypeface(),Typeface.BOLD);
break;
case 2:
tv.setTypeface(tv.getTypeface(),Typeface.BOLD_ITALIC);
break;
case 3:
tv.setTypeface(tv.getTypeface(),Typeface.NORMAL);
break;
case 0:
tv.setTypeface(tv.getTypeface(),Typeface.ITALIC);
break;
default:
tv.setTypeface(tv.getTypeface(),Typeface.ITALIC);
}
}
});
}
}
布局文件:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
android:typeface="monospace"
android:textStyle="italic"
android:textSize="40dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="样式"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="@+id/tv"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:text="字体"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/tv"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>