On Android, how do you switch activities programmatically?

dicroce_3886 0
Viewed 82189

It seems like every example I can find of switching between activities involves creating an Intent and passing in the context of a View via an OnClickListener associated with a button.

But what if you just decide you need to switch activities? In my case, a preference value is causing an Activity switch.

How do you create an Intent that can cause an Activity switch without an associated OnClickListener?

android-activity android
8 Answers

Firstly you need to create UI for a button by using layout intro_activity_1.XML file. After that set id for button group using android:id="@+id/button"

Example:

intro_activity_1.xml

<Button    android:id="@+id/button"    
android:layout_width="wrap_content"    
android:layout_height="wrap_content"    
android:layout_weight="1"    
android:background="@android:color/transparent"    
android:text="NEXT" />

Now change your java class of first activity. In this example, we change java file of IntroActivity1.java

Example:

IntroActivity1.java

//header, import and package data


public class IntroActivity1 extends AppCompatActivity {


    Button next_btn;

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.intro_activity_1); 

           next_btn=(Button)findViewById(R.id.button);//button class

           next_btn.setOnClickListener(new View.OnClickListener(){
   public void onClick(View arg0){
       //Start new activity class
              Intent myIntent=new Intent(IntroActivity1.this,IntroActivity2.class);
             startActivity(myIntent);
      }
  });
}

For More details about activity changer visit : https://answerdone.blogspot.com/2018/01/how-to-change-new-activity-in-android.html

user_81201780
Related