Android中的Linkify的用法

Android中的Linkify可以用来判断一个字符串是电话号码、Email、网址或是其他。下面就一个例子来说明它的用法。当字符串在TextView中显示时,点击该字符串手机就会调用Intent,自动对该字符串进行判断,如果是网址就会自动启动浏览器打开该网页;如果是电话号码就会自动打开拨号器进行打电话······

程序如下所示:

import android.app.Activity;
import android.os.Bundle;
import android.text.util.Linkify;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnKeyListener;
import android.widget.EditText;
import android.widget.TextView;

public class A02Activity extends Activity {
 private TextView tv;
 private EditText et;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv=(TextView)findViewById(R.id.tv);
        et=(EditText)findViewById(R.id.et);
        et.setOnKeyListener(new OnKeyListener(){

@Override
   public boolean onKey(View v, int keyCode, KeyEvent event) {
    // TODO Auto-generated method stub
    tv.setText(et.getText());
    Linkify.addLinks(tv, Linkify.PHONE_NUMBERS|Linkify.WEB_URLS|Linkify.EMAIL_ADDRESSES);
    return false;
   }
        
        });
    }
}

res/layout/main.xml如下:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

<TextView
        android:id="@+id/tv"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />
    <EditText
        android:id="@+id/et"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        />

</LinearLayout>

也可以不在程序中用Linkify,而在res/layout/main.xml中使用android:autoLink="all"(这个适合所有的android手机支持的标识)或者是android:autoLink="web|phone|email"(这个支持指定的android手机支持的标识),具体举例如下:

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class A03Activity extends Activity {
 TextView tv01,tv02,tv03;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv01=(TextView)findViewById(R.id.tv01);
        tv02=(TextView)findViewById(R.id.tv02);
        tv03=(TextView)findViewById(R.id.tv03);  
        tv01.setText("www.baidu.com");
        tv02.setText("18775828658");
        tv03.setText("1650967185@qq.com");
    }
}

res/layout/main.xml如下所示:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

<TextView
        android:id="@+id/tv01"
        android:autoLink="all"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />
    <TextView
        android:id="@+id/tv02"
        android:autoLink="all"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        />
    <TextView
        android:id="@+id/tv03"
        android:autoLink="all"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        />

</LinearLayout>

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