自定义titlebar

<declare-styleable name="TitleBarView">
    <attr name="title_text" format="string" />
    <attr name="left_text" format="string" />
    <attr name="right_text" format="string" />
</declare-styleable>

    <com.scxh.android1503.ui.custom.TitleBarView
        android:id="@+id/my_titlebarview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:left_text="返回"
        app:right_text="设置"
        app:title_text="标题" />

public class TitleBarView extends RelativeLayout implements View.OnClickListener {
    private String mTitle;
    private String mLeft;
    private String mRight;
    private LayoutInflater mInfalter;
    //利用接口回调的方式进行事件响应
    private OnTitleBarClickListener mOnClickListener; //声明接口

    /**
     * 定义接口
     */
    public interface OnTitleBarClickListener {
        public void onTitleBarClick(View v);
    }

    /**
     * 注册接口
     *
     * @param l
     */
    public void registerOnClickListener(OnTitleBarClickListener l) {
        mOnClickListener = l;
    }

    public TitleBarView(Context context) {
        super(context);
    }

    public TitleBarView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context, attrs);
    }

    public TitleBarView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context, attrs);
    }

    public void init(Context context, AttributeSet attrs) {
        TypedArray a = null;
        try {
            a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.TitleBarView, 0, 0);
            mTitle = a.getString(R.styleable.TitleBarView_title_text);

            mLeft = a.getString(R.styleable.TitleBarView_left_text);
            mRight = a.getString(R.styleable.TitleBarView_right_text);
        } finally {
            a.recycle();
        }

        mInfalter = LayoutInflater.from(context);
        initView();
    }

    public void initView() {
        View v = mInfalter.inflate(R.layout.custom_title_layout, this, true);

        if (mLeft != null) {
            TextView leftTxt = (TextView) v.findViewById(R.id.title_left_txt);
            leftTxt.setText(mLeft);
            leftTxt.setOnClickListener(this);
        }

        if (mRight != null) {
            TextView rightTxt = (TextView) v.findViewById(R.id.title_right_txt);
            rightTxt.setText(mRight);
            rightTxt.setOnClickListener(this);
        }

        if (mTitle != null) {
            TextView titleTxt = (TextView) v.findViewById(R.id.title_title_txt);
            titleTxt.setText(mTitle);
        }
    }

    @Override
    public void onClick(View v) {
        if (mOnClickListener != null) {
            mOnClickListener.onTitleBarClick(v);
        }
    }
}

public class CustomMainActivity extends Activity implements TitleBarView.OnTitleBarClickListener 

 @Override
    public void onTitleBarClick(View v) {
        switch (v.getId()) {
            case R.id.title_left_txt:
                Toast.makeText(CustomMainActivity.this, "返回", Toast.LENGTH_SHORT).show();
                finish();
                break;
            case R.id.title_right_txt:
                Toast.makeText(CustomMainActivity.this, "设置", Toast.LENGTH_SHORT).show();
                break;
        }
    }