Java tutorial
//package com.java2s; import android.content.Context; import android.content.Intent; import android.net.Uri; import android.util.Log; public class Main { public static boolean jump(Context context, String s) { Intent intent = new Intent("android.intent.action.VIEW", Uri.parse(s)); boolean flag; if (!isIntentAvailable(context, intent)) { Log.e("MicroMsg.Util", (new StringBuilder("jump to url failed, ")).append(s).toString()); flag = false; } else { context.startActivity(intent); flag = true; } return flag; } public static boolean isIntentAvailable(Context context, Intent intent) { boolean flag; if (context.getPackageManager().queryIntentActivities(intent, 0x10000).size() > 0) flag = true; else flag = false; return flag; } }