First project in android

Yesterday i learned how to program and make application using

Android in eclipse
i just learned the basics of it .
1) how to design ,add buttons , layouts,textfeilds ,pictures...etc
2)how to jump from page to page using onClickListener and intent .

Steps for creating new project.

First step is to create new android application

1.File->New->Android application project;

2.Write the Application name;

3.minimum required SDK and target SDK change it to android 4.0;

4.next->next

5.Configure launcher icon (change the icon of your application as you like, adding picture, change the shape…etc.

6. create activity you can choose anything you want.

7. next-> finish.

According to my understanding, I wrote a very simple login application named it Funny. Firstly if the user has an account and he/she inputs the right account then click the login yellow button-this means login- It will jump to the next page and Welcome the user for entering the page.- it means welcome to my page-

I used onClickListener and intent for doing this function.

Second If the user don’t have account, he/she will register for new account so I add another button for this function (gray button)-this button means signup -. when the user click this button it will jump to the register page.

First line means enter name ;

Second means enter the password;

Third enter your email address;

I made a very simple application because my laptop is too slow , every step really takes a long time .I hope that I will improve my application and make it more creative.

These are my pages.

When I finished this program I remember that I have to change the buttons in the first page to like the button in the register page but I found an error .

Unfortunately, Funny has stopped.

the error was because of unused linear veiw.

this is my code:

package com.example.funny;public class Secondpage extends Activity{protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_second);}}

package com.example.funny;public class MainActivity extends Activity {Button login;Button signup;EditText account;TextView check;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);signup=(Button)super.findViewById(R.id.signup);login=(Button)super.findViewById(R.id.login);account=(EditText)super.findViewById(R.id.account);check=(TextView)super.findViewById(R.id.check);login.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubif(account.getText().toString().equals("8888")){check.setText(account.getText());    Intent t=new Intent(MainActivity.this,Secondpage.class);  MainActivity.this.startActivity(t);}}});signup.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub    Intent t=new Intent(MainActivity.this,Register.class);  MainActivity.this.startActivity(t);}});}}

package com.example.funny;public class Register extends Activity{protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_register);}}

I found some difficulties because Arabic language starts from right to left opposite to English .

查看图片附件

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