自定義 Snackbar（無需檢視）

建立一個 Snackbar 而不需要將檢視傳遞給 Snackbar，所有佈局都在 android.R.id.content 中的 android 中建立。

public class CustomSnackBar {

    public static final int STATE_ERROR = 0;
    public static final int STATE_WARNING = 1;
    public static final int STATE_SUCCESS = 2;
    public static final int VIEW_PARENT = android.R.id.content;

    public CustomSnackBar(View view, String message, int actionType) {
        super();

        Snackbar snackbar = Snackbar.make(view, message, Snackbar.LENGTH_LONG);
        View sbView = snackbar.getView();
        TextView textView = (TextView) sbView.findViewById(android.support.design.R.id.snackbar_text);
        textView.setTextColor(Color.parseColor("#ffffff"));
        textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14);
        textView.setGravity(View.TEXT_ALIGNMENT_CENTER);
        textView.setLayoutDirection(View.LAYOUT_DIRECTION_RTL);

        switch (actionType) {
            case STATE_ERROR:
                snackbar.getView().setBackgroundColor(Color.parseColor("#F12B2B"));
                break;
            case STATE_WARNING:
                snackbar.getView().setBackgroundColor(Color.parseColor("#000000"));
                break;
            case STATE_SUCCESS:
                snackbar.getView().setBackgroundColor(Color.parseColor("#7ED321"));
                break;
        }
        snackbar.show();
    }
}

用於通話類

new CustomSnackBar（findViewById(CustomSnackBar.VIEW_PARENT)，message，CustomSnackBar.STATE_ERROR）;