阅读《Android 从入门到精通》（30）——字体

Posted 2020-06-20 SweetLoverFT

TypeFace 类方法

TypeFace 的五种字型和四种字体

TypeFace 示例

完整工程：

1.MainActivity.java

package com.sweetlover.activity;

import com.sweetlover.typeface.R;

import android.app.Activity;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

	private EditText editText = null;
	private RadioGroup radioGroup = null;
	private RadioButton[] radioBtn = null;
	private TextView textView = null;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		editText = (EditText) findViewById(R.id.edittext1);
		radioGroup = (RadioGroup) findViewById(R.id.rg);
		radioBtn = new RadioButton[5];
		radioBtn[0] = (RadioButton) findViewById(R.id.rb1);
		radioBtn[1] = (RadioButton) findViewById(R.id.rb2);
		radioBtn[2] = (RadioButton) findViewById(R.id.rb3);
		radioBtn[3] = (RadioButton) findViewById(R.id.rb4);
		radioBtn[4] = (RadioButton) findViewById(R.id.rb5);
		textView = (TextView) findViewById(R.id.textview);

		radioGroup.setOnCheckedChangeListener(new CheckChangedListener());
	}

	class CheckChangedListener implements OnCheckedChangeListener {

		@Override
		public void onCheckedChanged(RadioGroup group, int checkedId) {
			// TODO Auto-generated method stub
			if (checkedId == radioBtn[0].getId() && radioBtn[0].isChecked()) {
				textView.setText(editText.getText());
				textView.setTextColor(Color.BLUE);
				textView.setTypeface(Typeface.DEFAULT, Typeface.NORMAL);
				Toast.makeText(MainActivity.this,
						radioBtn[0].getText() + " 被选择", Toast.LENGTH_SHORT)
						.show();
			} else if (checkedId == radioBtn[1].getId() && radioBtn[1].isChecked()) {
				textView.setText(editText.getText());
				textView.setTextColor(Color.BLUE);
				textView.setTypeface(Typeface.DEFAULT_BOLD, Typeface.BOLD);
				Toast.makeText(MainActivity.this,
						radioBtn[1].getText() + " 被选择", Toast.LENGTH_SHORT)
						.show();
			} else if (checkedId == radioBtn[2].getId() && radioBtn[2].isChecked()) {
				textView.setText(editText.getText());
				textView.setTextColor(Color.BLUE);
				textView.setTypeface(Typeface.MONOSPACE, Typeface.ITALIC);
				Toast.makeText(MainActivity.this,
						radioBtn[2].getText() + " 被选择", Toast.LENGTH_SHORT)
						.show();
			} else if (checkedId == radioBtn[3].getId() && radioBtn[3].isChecked()) {
				textView.setText(editText.getText());
				textView.setTextColor(Color.BLUE);
				textView.setTypeface(Typeface.MONOSPACE, Typeface.BOLD_ITALIC);
				Toast.makeText(MainActivity.this,
						radioBtn[3].getText() + " 被选择", Toast.LENGTH_SHORT)
						.show();
			} else if (checkedId == radioBtn[4].getId() && radioBtn[4].isChecked()) {
				textView.setText(editText.getText());
				textView.setTextColor(Color.BLUE);
				textView.setTypeface(Typeface.DEFAULT_BOLD, Typeface.BOLD);
				textView.getPaint().setFakeBoldText(true);
				Toast.makeText(MainActivity.this,
						radioBtn[4].getText() + " 被选择", Toast.LENGTH_SHORT)
						.show();
			}
		}
	}
}

2.activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    
    <EditText
        android:id="@+id/edittext1"
        android:layout_width="300dp"
        android:layout_height="60dp"
        android:layout_gravity="center"
        android:textSize="30sp"
        android:hint="@string/note" />
    
    <RadioGroup
        android:id="@+id/rg"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="vertical" >
        
        <RadioButton
            android:id="@+id/rb1"
            android:layout_width="wrap_content"
        	android:layout_height="wrap_content"
        	android:text="@string/rb1" />
        
        <RadioButton
            android:id="@+id/rb2"
            android:layout_width="wrap_content"
        	android:layout_height="wrap_content"
        	android:text="@string/rb2" />
        
        <RadioButton
            android:id="@+id/rb3"
            android:layout_width="wrap_content"
        	android:layout_height="wrap_content"
        	android:text="@string/rb3" />
        
        <RadioButton
            android:id="@+id/rb4"
            android:layout_width="wrap_content"
        	android:layout_height="wrap_content"
        	android:text="@string/rb4" />
        
        <RadioButton
            android:id="@+id/rb5"
            android:layout_width="wrap_content"
        	android:layout_height="wrap_content"
        	android:text="@string/rb5" />
        
    </RadioGroup>
    
    <TextView
        android:id="@+id/textview"
        android:layout_width="300dp"
        android:layout_height="60dp"
        android:layout_gravity="center"
        android:textSize="30sp"
        android:text="@string/note" />

</LinearLayout>

3.string.xml

<resources>

    <string name="app_name">TypeFace</string>
    <string name="note">请输入文字</string>
    <string name="rb1">默认</string>
    <string name="rb2">粗体</string>
    <string name="rb3">斜体</string>
    <string name="rb4">粗斜体</string>
    <string name="rb5">仿粗体</string>

</resources>