content: package com.android.launcher3.testing;
  
  import android.app.Activity;
  import android.content.SharedPreferences;
  import android.os.Bundle;
  import android.view.View;
  
  import com.android.launcher3.Launcher;
  import com.android.launcher3.LauncherAppState;
  import com.android.launcher3.Utilities;
  import com.android.launcher3.util.TestingUtils;
  
  public class ToggleWeightWatcher extends Activity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          SharedPreferences sp = Utilities.getPrefs(this);
          boolean show = sp.getBoolean(TestingUtils.SHOW_WEIGHT_WATCHER, true);
  
          show = !show;
          sp.edit().putBoolean(TestingUtils.SHOW_WEIGHT_WATCHER, show).apply();
  
          Launcher launcher = (Launcher) LauncherAppState.getInstance(this).getModel().getCallback();
          if (launcher != null && launcher.mWeightWatcher != null) {
              launcher.mWeightWatcher.setVisibility(show ? View.VISIBLE : View.GONE);
          }
          finish();
      }
  }
  