private void customizePictureViewer() { final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(SettingsActivity.this, getDialogStyle()); View dialogLayout = getLayoutInflater().inflate(R.layout.dialog_media_viewer_theme, null); final SwitchCompat swApplyTheme_Viewer = (SwitchCompat) dialogLayout.findViewById(R.id.apply_theme_3th_act_enabled); ((CardView) dialogLayout.findViewById(R.id.third_act_theme_card)) .setCardBackgroundColor(getCardBackgroundColor()); dialogLayout .findViewById(R.id.third_act_theme_title) .setBackgroundColor(getPrimaryColor()); // or Getprimary ((TextView) dialogLayout.findViewById(R.id.apply_theme_3thAct_title)) .setTextColor(getTextColor()); ((TextView) dialogLayout.findViewById(R.id.apply_theme_3thAct_title_Sub)) .setTextColor(getSubTextColor()); ((IconicsImageView) dialogLayout.findViewById(R.id.ll_apply_theme_3thAct_icon)) .setColor(getIconColor()); swApplyTheme_Viewer.setChecked(isApplyThemeOnImgAct()); swApplyTheme_Viewer.setOnCheckedChangeListener( new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { updateSwitchColor(swApplyTheme_Viewer, getAccentColor()); } }); updateSwitchColor(swApplyTheme_Viewer, getAccentColor()); final LineColorPicker transparencyColorPicker = (LineColorPicker) dialogLayout.findViewById(R.id.pickerTransparent); transparencyColorPicker.setColors(ColorPalette.getTransparencyShadows(getPrimaryColor())); transparencyColorPicker.setSelectedColor( ColorPalette.getTransparentColor(getPrimaryColor(), getTransparency())); /** TEXT VIEWS* */ ((TextView) dialogLayout.findViewById(R.id.seek_bar_alpha_title)).setTextColor(getTextColor()); ((TextView) dialogLayout.findViewById(R.id.seek_bar_alpha_title_Sub)) .setTextColor(getSubTextColor()); dialogBuilder.setView(dialogLayout); dialogBuilder.setNeutralButton(getString(R.string.cancel), null); dialogBuilder.setPositiveButton( getString(R.string.ok_action), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { SharedPreferences.Editor editor = SP.edit(); editor.putBoolean( getString(R.string.preference_apply_theme_pager), swApplyTheme_Viewer.isChecked()); int c = Color.alpha(transparencyColorPicker.getColor()); editor.putInt(getString(R.string.preference_transparency), 255 - c); editor.apply(); updateTheme(); } }); dialogBuilder.show(); }