Android调用默认浏览器打开指定Url的方法实例

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(https://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~~~"); 
        } 
}