In this post we will
read to how to add/set back button in android app projects in action bar in
android studio.
Here provide a android studio code which code we use in activity of android studio projects, paste this code where you want to show the back button for go back after clicked, for example we create a story app and we want to show back button in details story page then we need to paste this java code in the details story activity in java file in the main section. For more explain I suggest to you watch video which below here.
Step 1 Create a project
Step 2 Create new activity (for go next page)
Step 3 paste code in the second activity (new activity) which
below
Java Code
package in.app.androidpro.makemoneyonline;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebView;
public class Card1 extends AppCompatActivity
{
@Override
protected
void onCreate(Bundle
savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_card1);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
}
WebView webView;
webView = findViewById(R.id.webview);
webView.loadUrl("file:///android_asset/Start
A YouTube Channel.html");
}
public
boolean onOptionsItemSelected(MenuItem item){
switch (item.getItemId())
{
case android.R.id.home:
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
public
boolean onCreateOptionsMenu(Menu menu) {
return true;
}
}