[英]How to set the font style to bold, italic and underlined in an Android TextView?
I want to make a TextView
's content bold, italic and underlined.我想让
TextView
的内容加粗、斜体和带下划线。 I tried the following code and it works, but doesn't underline.我尝试了以下代码并且它有效,但没有下划线。
<Textview android:textStyle="bold|italic" ..
How do I do it?我该怎么做? Any quick ideas?
任何快速的想法?
This should make your TextView bold , underlined and italic at the same time.这应该使您的 TextView 同时加粗、加下划线和斜体。
strings.xml字符串.xml
<resources>
<string name="register"><u><b><i>Copyright</i></b></u></string>
</resources>
To set this String to your TextView, do this in your main.xml将此字符串设置为您的 TextView,请在您的main.xml 中执行此操作
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/textview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="@string/register" />
or In JAVA ,或在JAVA 中,
TextView textView = new TextView(this);
textView.setText(R.string.register);
Sometimes the above approach will not be helpful when you might have to use Dynamic Text.有时,当您可能不得不使用动态文本时,上述方法将无济于事。 So in that case SpannableString comes into action.
所以在这种情况下SpannableString 开始起作用。
String tempString="Copyright";
TextView text=(TextView)findViewById(R.id.text);
SpannableString spanString = new SpannableString(tempString);
spanString.setSpan(new UnderlineSpan(), 0, spanString.length(), 0);
spanString.setSpan(new StyleSpan(Typeface.BOLD), 0, spanString.length(), 0);
spanString.setSpan(new StyleSpan(Typeface.ITALIC), 0, spanString.length(), 0);
text.setText(spanString);
OUTPUT输出
I don't know about underline, but for bold and italic there is "bolditalic"
.我不知道下划线,但对于粗体和斜体有
"bolditalic"
。 There is no mention of underline here: http://developer.android.com/reference/android/widget/TextView.html#attr_android:textStyle这里没有提到下划线: http : //developer.android.com/reference/android/widget/TextView.html#attr_android : textStyle
Mind you that to use the mentioned bolditalic
you need to, and I quote from that page请注意,要使用提到的
bolditalic
您需bolditalic
,我引用了该页面
Must be one or more (separated by '|') of the following constant values.
必须是以下常量值中的一个或多个(以“|”分隔)。
so you'd use bold|italic
所以你会使用
bold|italic
You could check this question for underline: Can I underline text in an android layout?你可以检查这个问题的下划线: Can I underline text in an android layout?
Or just like this in Kotlin:或者就像在 Kotlin 中这样:
val tv = findViewById(R.id.textViewOne) as TextView
tv.setTypeface(null, Typeface.BOLD_ITALIC)
// OR
tv.setTypeface(null, Typeface.BOLD or Typeface.ITALIC)
// OR
tv.setTypeface(null, Typeface.BOLD)
// OR
tv.setTypeface(null, Typeface.ITALIC)
// AND
tv.paintFlags = tv.paintFlags or Paint.UNDERLINE_TEXT_FLAG
Or in Java:或者在 Java 中:
TextView tv = (TextView)findViewById(R.id.textViewOne);
tv.setTypeface(null, Typeface.BOLD_ITALIC);
// OR
tv.setTypeface(null, Typeface.BOLD|Typeface.ITALIC);
// OR
tv.setTypeface(null, Typeface.BOLD);
// OR
tv.setTypeface(null, Typeface.ITALIC);
// AND
tv.setPaintFlags(tv.getPaintFlags()|Paint.UNDERLINE_TEXT_FLAG);
Keep it simple and in one line :)保持简单并在一行中:)
For bold and italic whatever you are doing is correct for underscore use following code对于粗体和斜体,无论你在做什么都是正确的下划线使用以下代码
HelloAndroid.java你好Android.java
package com.example.helloandroid;
import android.app.Activity;
import android.os.Bundle;
import android.text.SpannableString;
import android.text.style.UnderlineSpan;
import android.widget.TextView;
public class HelloAndroid extends Activity {
TextView textview;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textview = (TextView)findViewById(R.id.textview);
SpannableString content = new SpannableString(getText(R.string.hello));
content.setSpan(new UnderlineSpan(), 0, content.length(), 0);
textview.setText(content);
}
}
main.xml主文件
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/textview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="@string/hello"
android:textStyle="bold|italic"/>
string.xml字符串.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World, HelloAndroid!</string>
<string name="app_name">Hello, Android</string>
</resources>
这是添加下划线的简单方法,同时保持其他设置:
textView.setPaintFlags(textView.getPaintFlags() | Paint.UNDERLINE_TEXT_FLAG);
Programmatialy:以编程方式:
You can do programmatically using setTypeface() method:您可以使用 setTypeface() 方法以编程方式执行:
Below is the code for default Typeface以下是默认字体的代码
textView.setTypeface(null, Typeface.NORMAL); // for Normal Text
textView.setTypeface(null, Typeface.BOLD); // for Bold only
textView.setTypeface(null, Typeface.ITALIC); // for Italic
textView.setTypeface(null, Typeface.BOLD_ITALIC); // for Bold and Italic
and if you want to set custom Typeface:如果你想设置自定义字体:
textView.setTypeface(textView.getTypeface(), Typeface.NORMAL); // for Normal Text
textView.setTypeface(textView.getTypeface(), Typeface.BOLD); // for Bold only
textView.setTypeface(textView.getTypeface(), Typeface.ITALIC); // for Italic
textView.setTypeface(textView.getTypeface(), Typeface.BOLD_ITALIC); // for Bold and Italic
XML: XML:
You can set Directly in XML file in like:您可以直接在 XML 文件中设置,例如:
android:textStyle="normal"
android:textStyle="normal|bold"
android:textStyle="normal|italic"
android:textStyle="bold"
android:textStyle="bold|italic"
If you are reading that text from a file or from the network.如果您正在从文件或网络中读取该文本。
You can achieve it by adding HTML tags to your text like mentioned您可以通过向您的文本添加 HTML 标签来实现它
This text is <i>italic</i> and <b>bold</b>
and <u>underlined</u> <b><i><u>bolditalicunderlined</u></b></i>
and then you can use the HTML class that processes HTML strings into displayable styled text.然后您可以使用HTML类将 HTML 字符串处理为可显示的样式文本。
// textString is the String after you retrieve it from the file
textView.setText(Html.fromHtml(textString));
没有引号对我有用:
<item name="android:textStyle">bold|italic</item>
xml中只有一行代码
android:textStyle="italic"
You can achieve it easily by using Kotlin's buildSpannedString{}
under its core-ktx
dependency.您可以通过在其
core-ktx
依赖项下使用 Kotlin 的buildSpannedString{}
轻松实现它。
val formattedString = buildSpannedString {
append("Regular")
bold { append("Bold") }
italic { append("Italic") }
underline { append("Underline") }
bold { italic {append("Bold Italic")} }
}
textView.text = formattedString
style="?android:attr/listSeparatorTextViewStyle
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