Apps hellow world not working

[ketanco]

Hi I was trying to write my first android app "hello world"

and I went to tutorial in developer.android.com

but

here is what i got and it didnt work:

Can you tell me what's wrong?

The code is as below:

package com.example.helloandroid;

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

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

and the messages below were:

[2011-09-13 22:20:29 - HelloAndroid] ------------------------------
[2011-09-13 22:20:29 - HelloAndroid] Android Launch!
[2011-09-13 22:20:29 - HelloAndroid] adb is running normally.
[2011-09-13 22:20:29 - HelloAndroid] Performing com.example.helloandroid.HelloAndroid activity launch
[2011-09-13 22:20:29 - HelloAndroid] Automatic Target Mode: launching new emulator with compatible AVD 'hello_world_avd'
[2011-09-13 22:20:29 - HelloAndroid] Launching a new emulator with Virtual Device 'hello_world_avd'
[2011-09-13 22:20:30 - Emulator] invalid command-line parameter: Files\Android\android-sdk\tools/emulator-arm.exe.
[2011-09-13 22:20:30 - Emulator] Hint: use '@foo' to launch a virtual device named 'foo'.
[2011-09-13 22:20:30 - Emulator] please use -help for more information

 

[miXer]

Move the android-sdk folder to a path with no spaces in the path like C:\android-sdk

 

[ketanco]

ok thanks it worked and i got one step further now. but this time, i got new error messages as below:

[2011-09-14 06:12:40 - HelloAndroid] Android Launch!
[2011-09-14 06:12:40 - HelloAndroid] adb is running normally.
[2011-09-14 06:12:40 - HelloAndroid] Performing com.example.helloandroid.HelloAndroid activity launch
[2011-09-14 06:12:40 - HelloAndroid] Automatic Target Mode: launching new emulator with compatible AVD 'hello_world_avd'
[2011-09-14 06:12:40 - HelloAndroid] Launching a new emulator with Virtual Device 'hello_world_avd'
[2011-09-14 06:12:43 - Emulator] emulator: warning: opening audio input failed
[2011-09-14 06:12:43 - Emulator]
[2011-09-14 06:12:44 - Emulator] emulator: emulator window was out of view and was recentred
[2011-09-14 06:12:44 - Emulator]
[2011-09-14 06:12:44 - HelloAndroid] New emulator found: emulator-5554
[2011-09-14 06:12:44 - HelloAndroid] Waiting for HOME ('android.process.acore') to be launched...
[2011-09-14 06:16:12 - HelloAndroid] HOME is up on device 'emulator-5554'
[2011-09-14 06:16:12 - HelloAndroid] Uploading HelloAndroid.apk onto device 'emulator-5554'
[2011-09-14 06:16:12 - HelloAndroid] Installing HelloAndroid.apk...
[2011-09-14 06:18:29 - HelloAndroid] Failed to install HelloAndroid.apk on device 'emulator-5554!
[2011-09-14 06:18:29 - HelloAndroid] (null)
[2011-09-14 06:18:29 - HelloAndroid] Failed to install HelloAndroid.apk on device 'emulator-5554': device not found
[2011-09-14 06:18:29 - HelloAndroid] com.android.ddmlib.InstallException: device not found
[2011-09-14 06:18:29 - HelloAndroid] Launch canceled!

 

[Sam Voss]

Without knowing more, i would suggest trying to restart the emulator, then make a change in your code (even as simple as deleting a ; and replacing it, then saving) which causes eclipse to regenerate the .apk which also could be a problem

 

[jonbonazza]

Also, make sure that you have "Unknown Sources" enabled in your device's settings.
(Home Screen > Menu Key > Settings > Application)

 

[TheCompBoy]

Try Sam Voss advice.. I think thats what you're looking for.