Eclipse Helios Android模拟器如何运行示例项目

Question

Hi I have installed eclipse helios with android emulation like its written http://www.futuredesktop.org/developing_android_apps_on_ubuntu.html but after running application

package com.example.android.apis;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class ApiDemos extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //setContentView(R.layout.main);
        TextView tv = new TextView(this);
        tv.setText("Hello, Android");
        setContentView(tv);
    }
}

I only see this screen How can I run this simple project ??

Edit: Problem was that package name was always this same, when I changed it, it works fine.

Answer 1

Ok, after you posted what your eclipse is saying there are two routes you can take, either make a new project or uninstall the existing. I will cover both.

Uninstalling: Exactly what it says. Open up a terminal. If you are on windows do

C:\\Program Files\\Android\\android-sdk\\platform-tools\\adb uninstall com.example.android.apis As needed (either because you installed it elsewhere or you are on Linux/Mac), substitute C:\\Program File\\Android for the Android home folder. You should know where it is since you declared it. If you are unsure, in Eclipse do Window -> Preferences -> Android and look at where the android sdk is.

Making a new project:

In eclipse File -> New -> Android Project . Follow the steps to creating a new android project. There are two things you want to note here: the Create Activity and Package name . Your package name something like com.example for now (or whatever you want it to be). It should not be the same as com.example.android.apis . Then just copy and paste the above code into your new Android class. You might need to change the class name from ApiDemos to your new Activity name.

Answer 2

在Package Explorer中 ，右键单击项目文件夹并选择Run As

Answer 3

I think you didn't start the app but the emulator only, by using the menu "Windows/Android and SDK manager/start [applied to a virtual device]" of Eclipse.

When you start your app, the console output of Eclipse shoud be saying (replace 00-sandbox by the name of your app):

[2011-08-30 13:26:16 - 00-sandbox] Uploading 00-sandbox.apk onto device 'emulator-5554'
[2011-08-30 13:26:16 - 00-sandbox] Installing 00-sandbox.apk...
[2011-08-30 13:26:19 - 00-sandbox] Success!
[2011-08-30 13:26:19 - 00-sandbox] Starting activity org.shlublu.android.sandbox.Main on device emulator-5554
[2011-08-30 13:26:22 - 00-sandbox] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=org.shlublu.android.sandbox/.Main }

If this is not the case, this means the app was not uploaded or not started on the emulator, or neither of them. You must then press "ctrl+f11" to run the application. Eclipse will ask you whether this is an Android app, a Java app or anything else: chose "Android Application".