复制代码 代码如下:

package com.gzz.whyinzi;

import android.net.Uri;

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.util.Log;

import android.view.Menu;

import android.view.View;

public class MainActivity extends Activity {

private static final String TAG = "ActivityDemo";

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Intent intent = new Intent();

intent.setAction("android.intent.action.VIEW");

Uri content_url = Uri.parse(http://www.jb51.net);

intent.setData(content_url);

startActivity(intent);

}

@Override

protected void onResume() {

super.onResume();

Intent intent = new Intent();

intent.setAction("android.intent.action.VIEW");

Uri content_url = Uri.parse("http://play.jb51.net");

intent.setData(content_url);

startActivity(intent);

Log.e(TAG, "start onResume~~~");

}

@Override

protected void onStop() {

super.onStop();

this.finish();

Log.e(TAG, "start onStop~~~");

}

}

onResume()在没有默认浏览器的时候就起作用了,当没有默认浏览器的时候会弹出提示以哪个浏览器打开,如果点击取消就会出现黑色背景,为防止出现黑色背景,onsume()重新调用打开浏览器.

onStop()在选择浏览器后结束进程.