自定义Android标题栏

预览效果

在value中添加resource文件

建立相关类来实现相关的属性

package com.plf.weknow.view;import android.content.Context;import android.content.res.TypedArray;import android.graphics.drawable.Drawable;import android.util.AttributeSet;import android.view.Gravity;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;import com.plf.weknow.R;/** * Created by Peng on 2017/3/3. */public class MyTopbar extends LinearLayout{    //包含的控件    private TextView tvTitle;    private ImageView ivLeft,ivRight;    //包含的属性    private String title;    private int titleColor;    private float titleSize;    private Drawable drLeft,drRight;    //布局参数    private LayoutParams tvParam,leftParam,rightParam;    /**     * 回调接口设置监听事件的处理     * 设置一个必须完成的接口做函方法参数，然后通过该接口对象调用其内部方法     */    public interface topbarClicklistener{        public void leftClick();        public void rightClick();    }    private topbarClicklistener clicklistener;    public void setOnTopbarClick(topbarClicklistener clicklistener){        this.clicklistener = clicklistener;    }    public MyTopbar(Context context, AttributeSet attrs) {        super(context, attrs);        //绑定属性文件        TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.MyTopbar);        //绑定属性        title = typedArray.getString(R.styleable.MyTopbar_mytitle);        titleColor = typedArray.getColor(R.styleable.MyTopbar_mytitleColor, 0);        titleSize = typedArray.getDimension(R.styleable.MyTopbar_mytitleSize, 0);        drLeft = typedArray.getDrawable(R.styleable.MyTopbar_leftBg);        drRight = typedArray.getDrawable(R.styleable.MyTopbar_rightBg);        //新建控件        tvTitle = new TextView(context);        ivLeft = new ImageView(context);        ivRight = new ImageView(context);        /**         * 及时回收，方便重用         */        typedArray.recycle();        //设置属性控件        tvTitle.setText(title);        tvTitle.setTextColor(titleColor);        tvTitle.setTextSize(titleSize);        tvTitle.setGravity(Gravity.LEFT);        ivLeft.setImageDrawable(drLeft);        ivRight.setImageDrawable(drRight);        //添加控件        tvParam = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT,1);        addView(tvTitle, tvParam);   //添加控件并设置其布局        leftParam = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT,0);        addView(ivLeft,leftParam);        rightParam = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT,0);        addView(ivRight,rightParam);        //点击事件        ivLeft.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                clicklistener.leftClick();            }        });        ivRight.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                clicklistener.rightClick();            }        });    }}

在布局中使用

<com.plf.weknow.view.MyTopbar        android:layout_width="match_parent"        android:layout_height="35dp"        android:id="@+id/mybar"        android:background="@color/colorPrimaryDark"        custom:mytitle="hehe"        custom:mytitleColor="#f0f0f0"        custom:mytitleSize="8sp"        custom:leftBg="@drawable/search"        custom:rightBg="@drawable/more">    com.plf.weknow.view.MyTopbar>

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