This simple tutorial shows you to create a method in Eclipse that allows you to move to a different activity within your Android app.
In this tutorial we will create 4 files. (main.xml, Main.java, second.xml, Second.java)
The idea is simple, click a button on main screen and go to second screen.
Main files :
Add a button to your main.xml file and give it id button1.
In you main.java file find onCreate method and add this code
So we can easily find button on our main screen using findViewById method.
Then we add listener to a button and if someone click the button we lunch startActivity method.
startActivity method accept Intent(ourcontext, class we want to lunch) as a parameter.
Second files:
Now create second.xml and second.java
In second.xml add another button so you can go back to your main screen and set id to back.
It is a good idea to use strings resources, so in strings addnew String MainMenu and add value "Main".
In your second.xml file add this to your button:
android:text="@string/MainMenu"
Add code in second.java file:
We added to second.java file setContentView(R.layout.second), this is layout that our class will use(second.xml).
Now the last very important think is modifying the AndroidManifest.xml
We have to add our activity:
Thanks for following tutorial.
Adam Bielecki
In this tutorial we will create 4 files. (main.xml, Main.java, second.xml, Second.java)
The idea is simple, click a button on main screen and go to second screen.
Main files :
Add a button to your main.xml file and give it id button1.
In you main.java file find onCreate method and add this code
@Override
public void onCreate(Bundle
savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button b = (Button) findViewById(R.id.button1);
b.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, Second.class));
}
});
}
So we can easily find button on our main screen using findViewById method.
Then we add listener to a button and if someone click the button we lunch startActivity method.
startActivity method accept Intent(ourcontext, class we want to lunch) as a parameter.
Second files:
Now create second.xml and second.java
In second.xml add another button so you can go back to your main screen and set id to back.
It is a good idea to use strings resources, so in strings addnew String MainMenu and add value "Main".
In your second.xml file add this to your button:
android:text="@string/MainMenu"
Add code in second.java file:
@Override
protected void onCreate(Bundle
savedInstanceState) {
// TODO Auto-generated
method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
Button
button = (Button) findViewById(id.back);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
startActivity(new Intent(Second.this, Main.class));
}
});
}
We added to second.java file setContentView(R.layout.second), this is layout that our class will use(second.xml).
Now the last very important think is modifying the AndroidManifest.xml
We have to add our activity:
<activity
android:name=".Second"
android:label="@string/second_title">
</activity>
Thanks for following tutorial.
Adam Bielecki
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