Android中字符串片段高亮

1. 引言

在Android中，使某个字符串中的某个单词或汉字高亮，效果图及代码实现如下。

2. 效果图

3. 功能实现

1. 主界面(main.xml)实现：<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android" android:orientation = "vertical" android:layout_width = "fill_parent" android:layout_height = "fill_parent" > <TextView android:id = "@+id/highLight" android:layout_width = "wrap_content" android:layout_height = "wrap_content" /> </LinearLayout>

2. 主Activity实现： package com.focus.fishme; import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.text.Spannable; import android.text.SpannableStringBuilder; import android.text.style.BackgroundColorSpan; import android.widget.TextView; public class HighLightActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TextView highLightView = (TextView) findViewById(R.id.highLight); String highLightStr = "HighLight MaYingCai"; String highLight = "MaYingCai"; int start = highLightStr.indexOf(highLight); SpannableStringBuilder style = new SpannableStringBuilder(highLightStr); style.setSpan(new BackgroundColorSpan(Color.RED), start, start + highLight.length(),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); highLightView.setText(style); } }

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