How Can An Activity Use A Toolbar Without Extending Appcompatactivity

I have an activity HomeView which already extends another activity and it cannot extend AppCompatActivity. But HomeView needs to have a Toolbar. The Android documentation says that

Solution 1:

You need to implement AppCompatCallback and use AppCompatDelegate. Here's an excellent article about how to use it: https://medium.com/google-developer-experts/how-to-add-toolbar-to-an-activity-which-doesn-t-extend-appcompatactivity-a07c026717b3#.nuyghrgr9 and also check out https://developer.android.com/reference/android/support/v7/app/AppCompatDelegate.html for knowing which methods to delegate.

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AppCompatDelegate

This class represents a delegate which you can use to extend AppCompat's support to any Activity.

When using an AppCompatDelegate, you should any methods exposed in it rather than the Activity method of the same name. This applies to:

addContentView(android.view.View, android.view.ViewGroup.LayoutParams)
setContentView(int)
setContentView(android.view.View)
setContentView(android.view.View, android.view.ViewGroup.LayoutParams)
requestWindowFeature(int)
invalidateOptionsMenu()
startSupportActionMode(android.support.v7.view.ActionMode.Callback)
setSupportActionBar(android.support.v7.widget.Toolbar)
getSupportActionBar()
getMenuInflater()

There also some Activity lifecycle methods which should be proxied to the delegate:

onCreate(android.os.Bundle)
onPostCreate(android.os.Bundle)
onConfigurationChanged(android.content.res.Configuration)
setTitle(CharSequence)
onStop()
onDestroy()

Solution 2:

Actually, it is pretty simple:

publicclassYourActivityextendsSomeActivityimplementsAppCompatCallback {

  @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // create the delegate
    delegate = AppCompatDelegate.create(this, this);
    delegate.onCreate(savedInstanceState);
    delegate.setContentView(R.layout.activity_details);

    // add the ToolbarToolbar toolbar= (Toolbar) findViewById(R.id.toolbar);
    delegate.setSupportActionBar(toolbar);
  }

  @OverridepublicvoidonSupportActionModeStarted(ActionMode mode) {
    // leave it empty
  }

  @OverridepublicvoidonSupportActionModeFinished(ActionMode mode) {
    // leave it empty
  }

  @Nullable@OverridepublicActionModeonWindowStartingSupportActionMode(ActionMode.Callback callback) {
    returnnull;
  }

That's it. Please, don't forget to set a AppTheme.NoActionBar theme to YourActivity in the AndroidManifest.xml.