Activity转发

实现类似于J2EE web开发中的servlet转发效果，用于往他人程序中嵌入插件。做法为

1package com.flrsdk.activity;
2
3import com.flrsdk.service.FloatService;
4
5import android.app.Activity;
6import android.content.Intent;
7import android.os.Bundle;
8
9public class PreActivity extends Activity {
10	@Override
11	protected void onCreate(Bundle savedInstanceState) {
12		// TODO Auto-generated method stub
13		super.onCreate(savedInstanceState);
14//		setContentView(R.layout.main);
15
16		System.out.println("Pre启动");
17		Intent service = new Intent();
18		service.setClass(this, FloatService.class);
19		startService(service);
20		Intent intent=new Intent();
21		intent.setAction("com.mh.sdk.demo.MainActivity");
22		startActivity(intent);
23	}
24
25	@Override
26	protected void onDestroy() {
27		// TODO Auto-generated method stub
28		super.onDestroy();
29		Intent serviceStop = new Intent();
30		serviceStop.setClass(this, FloatService.class);
31		stopService(serviceStop);
32	}
33
34	@Override
35	protected void onRestart() {
36		// TODO Auto-generated method stub
37		super.onRestart();
38			//第二次进入的时候说明有戏退出了，立马结束掉当前activity
39			finish();
40	}
41
42}

将该activity配置为对话框形式，

            android:theme="@android :style/Theme.Dialog" 

否则很容易看出来activity经过了一次跳转。