TitleBuilder.java

package com.hpw.mvpframe.utils;

import android.app.Activity;
import android.content.Context;
import android.text.TextUtils;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.TextView;

import com.hpw.mvpframe.R;

/**
 * 标题栏构造器,使用方法 new TitleBuilder().setMethod().setMethod()......
 * <p/>
 * 统一格式为标题文字,左右各自是文字/图片按钮
 * 按钮都默认不显示,只有在你调用setLeftText时才会显示左侧按钮文字,图片同理
 * 图片或文字的点击事件都用Left/RightOnClickListener
 */
public class TitleBuilder {

    private View rootView;
    private TextView tvTitle;
    private ImageView ivLeft;
    private ImageView ivRight;
    private TextView tvLeft;
    private TextView tvRight;

    public View getRootView() {
        return rootView;
    }

    public TextView getTvTitle() {
        return tvTitle;
    }

    public ImageView getIvLeft() {
        return ivLeft;
    }

    public ImageView getIvRight() {
        return ivRight;
    }

    public TextView getTvLeft() {
        return tvLeft;
    }

    public TextView getTvRight() {
        return tvRight;
    }

    /**
     * Activity中使用这个构造方法
     */
    public TitleBuilder(Activity context) {
        rootView = context.findViewById(R.id.rl_titlebar);
        if (rootView == null) {
            return;
        }
        tvTitle = (TextView) rootView.findViewById(R.id.titlebar_tv);
        ivLeft = (ImageView) rootView.findViewById(R.id.titlebar_iv_left);
        ivRight = (ImageView) rootView.findViewById(R.id.titlebar_iv_right);
        tvLeft = (TextView) rootView.findViewById(R.id.titlebar_tv_left);
        tvRight = (TextView) rootView.findViewById(R.id.titlebar_tv_right);
    }

    /**
     * Fragment中使用这个构造方法
     */
    public TitleBuilder(View context) {
        rootView = context.findViewById(R.id.rl_titlebar);
        if (rootView == null) {
            return;
        }
        tvTitle = (TextView) rootView.findViewById(R.id.titlebar_tv);
        ivLeft = (ImageView) rootView.findViewById(R.id.titlebar_iv_left);
        ivRight = (ImageView) rootView.findViewById(R.id.titlebar_iv_right);
        tvLeft = (TextView) rootView.findViewById(R.id.titlebar_tv_left);
        tvRight = (TextView) rootView.findViewById(R.id.titlebar_tv_right);
    }

    // title
    public TitleBuilder setTitleBgRes(int resid) {
        rootView.setBackgroundResource(resid);
        return this;
    }

    public TitleBuilder setTitleText(String text) {
        tvTitle.setVisibility(TextUtils.isEmpty(text) ? View.GONE
                : View.VISIBLE);
        tvTitle.setText(text);
        return this;
    }

    // left
    public TitleBuilder setLeftImage(int resId) {
        ivLeft.setVisibility(resId > 0 ? View.VISIBLE : View.GONE);
        ivLeft.setImageResource(resId);
        return this;
    }

    public TitleBuilder setLeftText(String text) {
        tvLeft.setVisibility(TextUtils.isEmpty(text) ? View.GONE : View.VISIBLE);
        tvLeft.setText(text);
        return this;
    }

    public TitleBuilder setLeftOnClickListener(OnClickListener listener) {
        if (ivLeft.getVisibility() == View.VISIBLE) {
            ivLeft.setOnClickListener(listener);
        } else if (tvLeft.getVisibility() == View.VISIBLE) {
            tvLeft.setOnClickListener(listener);
        }
        return this;
    }

    // right
    public TitleBuilder setRightImage(int resId) {
        ivRight.setVisibility(resId > 0 ? View.VISIBLE : View.GONE);
        ivRight.setImageResource(resId);
        return this;
    }

    public TitleBuilder setRightText(String text) {
        tvRight.setVisibility(TextUtils.isEmpty(text) ? View.GONE
                : View.VISIBLE);
        tvRight.setText(text);
        return this;
    }

    public TitleBuilder setRightTextColor(Context context, int resId) {
        tvRight.setTextColor(context.getResources().getColor(resId));
        return this;
    }

    public TitleBuilder setTitleTextColor(Context context, int resId) {
        tvTitle.setTextColor(context.getResources().getColor(resId));
        return this;
    }


    public TitleBuilder setRightOnClickListener(OnClickListener listener) {
        if (ivRight.getVisibility() == View.VISIBLE) {
            ivRight.setOnClickListener(listener);
        } else if (tvRight.getVisibility() == View.VISIBLE) {
            tvRight.setOnClickListener(listener);
        }
        return this;
    }

    public View build() {
        return rootView;
    }

}