Android 打造一个通用的TitleBar

每个App里都有标题栏模块，于是就封装一下组件马上上代码：
public class TitleBar extends RelativeLayout {    private static final String TAG = "TitleBar";    private ImageButton mBackButton;    private ImageButton mShareButton;    private TextView mTitle;    private OnBackClickListener mOnBackClickListener;    private OnShareClickListener mOnShareClickListener;    private onRuleClickListner mRuleClickListner;    private View mBottomLine;    private boolean mEnableShare;    private int mTitleColorResId;    private int mBackIconResId;    private int mShareIconResId;    private int mTitleTextResId;    private boolean mShowBottomLine;    private int mRuleResId;    private ImageButton mRuleButton;    private boolean mEnableRule;    private static int TITLECOLOR = R.color.common_text_color;    private int mTitleColor = TITLECOLOR;    private float mTitleTextSize;    private boolean mTitleBold;    public interface OnBackClickListener {        void onBackClick();    }    public interface OnShareClickListener {        void onShareClick();    }    public interface onRuleClickListner {        void onRuleClick();    }    public TitleBar(Context context) {        super(context);        initViews(context);    }    public TitleBar(Context context, AttributeSet attrs) {        super(context, attrs);        handleAttributes(context, attrs);        initViews(context);    }    public TitleBar(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        handleAttributes(context, attrs);        initViews(context);    }    private void handleAttributes(Context context, AttributeSet attrs) {        try {            TypedArray styledAttrs = context.obtainStyledAttributes(attrs, R.styleable.TitleBar);            mTitleBold = styledAttrs.getBoolean(R.styleable.TitleBar_title_text_bold, true);            mTitleColor = styledAttrs.getResourceId(R.styleable.TitleBar_title_color, TITLECOLOR);            mTitleTextSize = styledAttrs.getDimension(R.styleable.TitleBar_title_size, DimenUtil.dp2Px(18));            mEnableShare = styledAttrs.getBoolean(R.styleable.TitleBar_enable_share, false);            mTitleColorResId = styledAttrs.getResourceId(R.styleable.TitleBar_title_color, R.color.common_text_color);            mBackIconResId = styledAttrs.getResourceId(R.styleable.TitleBar_back_icon, R.drawable.ic_back);            mShareIconResId = styledAttrs.getResourceId(R.styleable.TitleBar_share_icon, R.drawable.ic_share);            mRuleResId = styledAttrs.getResourceId(R.styleable.TitleBar_integral_rule, R.drawable.ic_invalid_name);            mTitleTextResId = styledAttrs.getResourceId(R.styleable.TitleBar_title_text, R.string.app_name);            mEnableRule = styledAttrs.getBoolean(R.styleable.TitleBar_enable_rule, false);            mShowBottomLine = styledAttrs.getBoolean(R.styleable.TitleBar_show_bottom_line, true);            styledAttrs.recycle();        } catch (Exception e) {            LogUtil.e(TAG, e.getMessage(), e);        }    }    private void initViews(Context context) {        LayoutInflater.from(context).inflate(R.layout.title_bar_layout, this);        mBackButton = findViewById(R.id.title_back);        mBackButton.setImageResource(mBackIconResId);        mShareButton = findViewById(R.id.title_share);        mRuleButton = findViewById(R.id.title_rule);        mRuleButton.setImageResource(mRuleResId);        mShareButton.setImageResource(mShareIconResId);        if (mEnableShare) {            mShareButton.setVisibility(VISIBLE);        }        if (mEnableRule) {            mRuleButton.setVisibility(VISIBLE);        }        mTitle = findViewById(R.id.title_tv);        mTitle.setText(mTitleTextResId);        mTitle.setTextColor(context.getResources().getColor(mTitleColorResId));        mBottomLine = findViewById(R.id.bottom_line);        if (!mShowBottomLine) {            mBottomLine.setVisibility(GONE);        }        mBackButton.setOnClickListener(mOnClickListener);        mTitle.setOnClickListener(mOnClickListener);        mShareButton.setOnClickListener(mOnClickListener);        mRuleButton.setOnClickListener(mOnClickListener);    }    public void setTitleColor(@ColorInt int titleColor) {        mTitle.setTextColor(titleColor);    }    public void setBackIconResId(int backIconResId) {        mBackIconResId = backIconResId;        mBackButton.setImageResource(backIconResId);    }    public void setShareIconResId(int shareIconResId) {        mShareIconResId = shareIconResId;        mShareButton.setImageResource(shareIconResId);    }    public void setOnBackClickListener(OnBackClickListener listener) {        mOnBackClickListener = listener;    }    public void setOnShareClickListener(OnShareClickListener listener) {        mOnShareClickListener = listener;    }    public void setOnRuleClickListener(onRuleClickListner listener) {        mRuleClickListner = listener;    }    private OnClickListener mOnClickListener = new OnClickListener() {        @Override        public void onClick(View v) {            switch (v.getId()) {                case R.id.title_back: {                    if (mOnBackClickListener != null) {                        mOnBackClickListener.onBackClick();                    }                    break;                }                case R.id.title_tv: {                    break;                }                case R.id.title_share: {                    if (mOnShareClickListener != null) {                        mOnShareClickListener.onShareClick();                    }                    break;                }                case R.id.title_rule: {                    if (mRuleClickListner != null) {                        mRuleClickListner.onRuleClick();                    }                }                default: {                    break;                }            }            return;        }    };    public void setTitle(String title) {        mTitle.setText(title);    }    public void setTitleVisibility(int visibility) {        mTitle.setVisibility(visibility);    }}
布局文件这里我们都将图片隐藏掉
attrs文件
好啦现在代码是写完了，那么我们怎么用呢？听我慢慢讲解，比如我们的状态栏里有分享如下图
那么我们直接 Android 打造一个通用的TitleBar_第1张图片
把我们这个属性为true就可以了。
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