可以添加很多的属性,样式或者是什么的,目前要完成的功能是 点击TextView里面的某个文字链接,进入另外一个Activity里面!
例如你可以做微博里面的 @XXX; 点击后进入他的个人主页!
下面都是Activity:
package wq.gdky005; import java.util.ArrayList; import android.R.color; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.graphics.Color; import android.os.Bundle; import android.text.Html; import android.text.Spannable; import android.text.SpannableStringBuilder; import android.text.method.LinkMovementMethod; import android.text.style.ClickableSpan; import android.text.style.URLSpan; import android.view.View; import android.widget.TextView; import android.widget.Toast; public class AbcActivity extends Activity { private TextView tv; private static Context ctx; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); tv = new TextView(this); tv.setClickable(false); ctx = this; String htmlLinkText = ""; htmlLinkText = "aaaaaaaaaa" + "<a style=\"color:red;\" href=\"我是超链接……\">@超链接点击事件;</a>" + " <a style=\"color:red;\" href=\"我是超链接2……\">@超链接点击事件;</a>" + "aaaaaaaaaaaaaaaa"; // 文字的样式(style)被覆盖,不能改变…… tv.setText(Html.fromHtml(htmlLinkText)); tv.setMovementMethod(LinkMovementMethod.getInstance()); CharSequence text = tv.getText(); if (text instanceof Spannable) { int end = text.length(); Spannable sp = (Spannable) tv.getText(); URLSpan[] urls = sp.getSpans(0, end, URLSpan.class); SpannableStringBuilder style = new SpannableStringBuilder(text); style.clearSpans();// should clear old spans for (URLSpan url : urls) { MyURLSpan myURLSpan = new MyURLSpan(url.getURL()); style.setSpan(myURLSpan, sp.getSpanStart(url), sp.getSpanEnd(url), Spannable.SPAN_EXCLUSIVE_INCLUSIVE); } tv.setText(style); } setContentView(tv); } private static class MyURLSpan extends ClickableSpan { private String mUrl; MyURLSpan(String url) { mUrl = url; } @Override public void onClick(View widget) { Toast.makeText(ctx, mUrl, Toast.LENGTH_LONG).show(); widget.setBackgroundColor(Color.parseColor("#00000000")); Intent intent = new Intent(AbcActivity.ctx, AAAActivity.class); ctx.startActivity(intent); } } }
这是设置文件的颜色和样式的
TextView是用来显示文本的,有时需要给TextView中的个别字设置为超链接,或者设置个别字的颜色、字体等,那就需要用到Spannable对象,可以借助Spannable对象实现以上设置 myTextView = (TextView) this.findViewById(R.id.myTextView); //创建一个 SpannableString对象 SpannableString sp = new SpannableString("这句话中有百度超链接,有高亮显示,这样,或者这样,还有斜体."); //设置超链接 sp.setSpan(new URLSpan("http://www.baidu.com"), 5, 7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); //设置高亮样式一 sp.setSpan(new BackgroundColorSpan(Color.RED), 17 ,19,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); //设置高亮样式二 sp.setSpan(new ForegroundColorSpan(Color.YELLOW),20,24,Spannable.SPAN_EXCLUSIVE_INCLUSIVE); //设置斜体 sp.setSpan(new StyleSpan(android.graphics.Typeface.BOLD_ITALIC), 27, 29, Spannable.SPAN_EXCLUSIVE_INCLUSIVE); //SpannableString对象设置给TextView myTextView.setText(sp); //设置TextView可点击 myTextView.setMovementMethod(LinkMovementMethod.getInstance());
时间: 2024-11-05 12:28:25