[android] Trigger back-button functionality on button click in Android

I know we have back button in android to move us back on the previous form, but my team leader asked to put a back button functionality on button click

How can I do this?

With this code i solved my problem.For back button paste these two line code.Hope this will help you.

Only paste this code on button click

super.onBackPressed();

Example:-

Button backButton = (Button)this.findViewById(R.id.back);
backButton.setOnClickListener(new OnClickListener() {
  @Override
  public void onClick(View v) {
    super.onBackPressed();
  }
});

layout.xml

<Button
    android:id="@+id/buttonBack"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:onClick="finishActivity"
    android:text="Back" />

Activity.java

public void finishActivity(View v){
    finish();
}

Related:

• Android - Return to calling Activity
• Android: Go back to previous activity

If you need the exact functionality of the back button in your custom button, why not just call yourActivity.onBackPressed() that way if you override the functionality of the backbutton your custom button will behave the same.

Well the answer from @sahhhm didn't work for me, what i needed was to trigger the backKey from a custom button so what I did was I simply called,

backAction.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                MyRides.super.onBackPressed();

            }
});

and it work like charm. Hope it will help others too.

If you are inside the fragment then you write the following line of code inside your on click listener, getActivity().onBackPressed(); this works perfectly for me.

public boolean onKeyDown(int keyCode, KeyEvent event) {
             if (keyCode == KeyEvent.KEYCODE_BACK) {
                     // your code here
                     return false;
             }
         return super.onKeyDown(keyCode, event);
     }