<activity android:name="com.ldw.createActivity.SecondActivity"></activity> 

<intent-filter> 
  <action android:name="android.intent.action.MAIN" /> 
  <category android:name="android.intent.category.LAUNCHER" /> 
</intent-filter> 

<activity 
 android:name="com.ldw.activityto.MainActivity" 
 android:label="@string/app_name" > 
 <intent-filter> 
  <action android:name="android.intent.action.MAIN" /> 
 
  <category android:name="android.intent.category.LAUNCHER" /> 
 </intent-filter> 
</activity> 

<activity android:name="com.ldw.activityto.SecondActivity"></activity> 

/* 
 * 跳转到本应用中的activity 
 * 显示跳转：直接指定目标activity的包名和类名 
 */ 
public void click2(View v){ 
 Intent intent = new Intent(); 
 //第一个参数是上下文对象，第二个参数是制定目的activity的类名 
 //显示意图 
 intent.setClass(this, SecondActivity.class); 
 startActivity(intent); 
}

<activity android:name="com.ldw.activityto.SecondActivity"> 
   <intent-filter> 
    <action android:name="com.ldw.activityto.sa"/> 
<span style="white-space:pre">  </span> <action android:name="com.ldw.activityto.sasa"/> 
<span style="white-space:pre">  </span> <data android:scheme="ldw" android:mimeType="text/password"/> 
    <category android:name="android.intent.category.DEFAULT"/> 
   </intent-filter> 
  </activity> 

/* 
  * 隐式跳转到拨secondActivity 
  */ 
 public void click5(View v){ 
 <span style="white-space:pre"> </span>Intent intent = new Intent(); 
 <span style="white-space:pre"> </span>//目标activity的包名和类名 
 <span style="white-space:pre"> </span>intent.setAction("com.ldw.activityto.sa"); 
 <span style="white-space:pre"> </span>intent.setData(Uri.parse("ldw:canshu")); //scheme中的参数加上冒号，没有miniType时候的配置 
 <span style="white-space:pre"> </span>//intent.setType("text/password");//没有配置data却有miniType的时候的配置 
 <span style="white-space:pre"> </span>//intent.setDataAndType(Uri.parse("ldw:canshu"), "text/password");//data和miniType都有的时候的 
 <span style="white-space:pre"> </span>intent.addCategory(Intent.CATEGORY_DEFAULT);//不写这句系统就添加默认的category 
 <span style="white-space:pre"> </span>startActivity(intent); 
 } 

package com.ldw.activityto; 
import android.app.Activity; 
import android.content.Intent; 
import android.net.Uri; 
import android.os.Bundle; 
public class SecondActivity extends Activity { 
 @Override 
 protected void onCreate(Bundle savedInstanceState){ 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_second); 
  //获取到启动这个activity的意图 
  Intent intent = getIntent(); 
  //获取到传递过来的数据 
  Uri uri = intent.getData(); 
 } 
} 

/* 
 * 跳转到打电话activity 
 * 隐式跳转：通过制定action和data来跳转 
 */ 
 public void click1(View v){ 
 Intent intent = new Intent(); 
 //隐式意图 
 intent.setAction(Intent.ACTION_CALL); 
 intent.setData(Uri.parse("tel:1190")); 
 //跳转 
 startActivity(intent); 
 } 
 /* 
 * 显示跳转到拨号器 
 */ 
 public void click3(View v){ 
 Intent intent = new Intent(); 
 //目标activity的包名和类名 
 intent.setClassName("com.android.dialer", ".DialtactsActivity"); 
 startActivity(intent); 
 } 

/* 
  * 显示跳转到浏览器 
  */ 
 public void click6(View v){ 
 <span style="white-space: pre;"> </span>Intent intent = new Intent(); 
 <span style="white-space: pre;"> </span>//目标activity的包名和类名 
 <span style="white-space: pre;"> </span>intent.setClassName("com.android.browser","com.android.browser.BrowserActivity"); 
 <span style="white-space: pre;"> </span>startActivity(intent); 
 } 
 /* 
  * 隐式跳转到浏览器 
  */ 
 public void click7(View v){ 
 <span style="white-space: pre;"> </span>Intent intent = new Intent(); 
 <span style="white-space: pre;"> </span>//目标activity的包名和类名 
 <span style="white-space: pre;"> </span>intent.setAction(intent.ACTION_VIEW); 
 <span style="white-space: pre;"> </span>intent.setData(Uri.parse("http://www.baidu.com")); 
 <span style="white-space: pre;"> </span>startActivity(intent); 
 }