如何在android中实现链接,下面四种方式告诉你

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">kelly</string>
<string name="link_text_auto"><b>text1:</b> This is some text.  In
this text are some things that are actionable.  For instance,
you can click on http://www.google.com and it will launch the
web browser.  You can click on google.com too.  And, if you
click on (415) 555-1212 it should dial the phone.
</string>
<string name="link_text_manual"><b>text2:</b> This is some other
text, with a <a href="http://www.google.com">link</a> specified
via an <a> tag.  Use a \"tel:\" URL
to <a href="tel:4155551212">dial a phone number</a>.
</string>
</resources>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/text1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:autoLink="all"
android:text="@string/link_text_auto"
/>

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/text2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/link_text_manual"
/>

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/text3"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/text4"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>

</LinearLayout>

package com.test.activity;

import java.io.IOException;

import android.app.Activity;
import android.app.WallpaperManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.PorterDuff;
import android.graphics.Typeface;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.method.LinkMovementMethod;
import android.text.style.StyleSpan;
import android.text.style.URLSpan;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.ImageView.ScaleType;

public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// Be sure to call the super class.
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView t2 = (TextView) findViewById(R.id.text2);
t2.setMovementMethod(LinkMovementMethod.getInstance());
TextView t3 = (TextView) findViewById(R.id.text3);
t3.setText(
Html.fromHtml(
"<b>text3:</b>  Text with a " +
"<a href=\"http://www.google.com\">link</a> " +
"created in the Java source code using HTML."));
t3.setMovementMethod(LinkMovementMethod.getInstance());
SpannableString ss = new SpannableString(
"text4: Click here to dial the phone.");

ss.setSpan(new StyleSpan(Typeface.BOLD), 0, 6,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(new URLSpan("tel:4155551212"), 13, 17,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
TextView t4 = (TextView) findViewById(R.id.text4);
t4.setText(ss);
t4.setMovementMethod(LinkMovementMethod.getInstance());
}
}