Android自定义标题栏

作者: 颤抖的闪电 | 来源:发表于2018-07-04 17:16 被阅读288次

image.png

第一步：
在values下面新建attrs文件，设置属性

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="TitlebarView">
        <attr name="leftText" format="string"/>
        <attr name="leftTextColor" format="color"/>
        <attr name="centerTextColor" format="color"/>
        <attr name="centerTitle" format="string"/>
        <attr name="rightTextColor" format="color"/>
        <attr name="rightText" format="string"/>
        <attr name="leftDrawble" format="reference"/>
        <attr name="rightDrawable" format="reference"/>
    </declare-styleable>
</resources>

主要设置内容，颜色，图片等

第二步：

设置标题栏的布局文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout_title"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@android:color/transparent"
    android:orientation="vertical">

    <LinearLayout
        android:id="@+id/layout_left"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:gravity="center"
        android:orientation="horizontal"
        android:paddingLeft="@dimen/size_8"
        android:paddingRight="@dimen/size_8">

        <ImageView
            android:id="@+id/iv_left"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@null"
            android:scaleType="centerInside" />

        <TextView
            android:id="@+id/tv_left"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:maxLength="4"
            android:maxLines="1"
            android:paddingLeft="@dimen/size_8" />
    </LinearLayout>

    <TextView
        android:id="@+id/tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:gravity="center"
        android:maxLength="10"
        android:maxLines="1" />

    <LinearLayout
        android:id="@+id/layout_right"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_alignParentRight="true"
        android:gravity="center"
        android:paddingLeft="@dimen/size_8"
        android:paddingRight="@dimen/size_8">

        <TextView
            android:id="@+id/tv_right"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:maxLines="1" />

        <ImageView
            android:id="@+id/iv_right"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@null"
            android:scaleType="centerInside" />
    </LinearLayout>
</RelativeLayout>

这里的布局文件是通用的布局文件，需要对此布局根据自己的需求进行配置，这个就需要自定义View了

第三步：

自定义TitleBar，主要进行引用布局，初始化view，拿到自定义属性进行相应配置

public TitlebarView(final Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        LayoutInflater.from(context).inflate(R.layout.layout_title, this);
        initView();
        TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.TitlebarView, defStyleAttr, 0);
        int count = array.getIndexCount();
        for (int i = 0; i < count; i++) {
            int attr = array.getIndex(i);
            switch (attr) {
                case R.styleable.TitlebarView_leftTextColor:
                    tv_left.setTextColor(array.getColor(attr, Color.BLACK));
                    break;
                case R.styleable.TitlebarView_leftDrawble:
                    iv_left.setImageResource(array.getResourceId(attr, 0));
                    break;
                case R.styleable.TitlebarView_leftText:
                    tv_left.setText(array.getString(attr));
                    break;
                case R.styleable.TitlebarView_centerTextColor:
                    tv_title.setTextColor(array.getColor(attr, Color.BLACK));
                    break;
                case R.styleable.TitlebarView_centerTitle:
                    tv_title.setText(array.getString(attr));
                    break;
                case R.styleable.TitlebarView_rightDrawable:
                    iv_right.setImageResource(array.getResourceId(attr, 0));
                    break;
                case R.styleable.TitlebarView_rightText:
                    tv_right.setText(array.getString(attr));
                    break;
                case R.styleable.TitlebarView_rightTextColor:
                    tv_right.setTextColor(array.getColor(attr, Color.BLACK));
                    break;
            }
        }
        array.recycle();

    }

然后我们需要添加左侧，右侧的点击事件，由于一般反馈点击范围太小，导致点击灵敏性较差，所以这里全部设置对左侧，右侧布局进行监听，而不是单个控件

设置回调接口

private onViewClick mClick;

 public void setOnViewClick(onViewClick click) {
        this.mClick = click;
    }

    public interface onViewClick {
        void leftClick();

        void rightClick();
    }

在调用的时候拿到自定义view对象setOnViewClick即可

全部代码如下：

package com.example.testing.mycustomview;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;

/**
 * Created by Administrator on 2017/7/18.
 */

public class TitlebarView extends RelativeLayout {
    private LinearLayout layout_left, layout_right;
    private TextView tv_left, tv_title, tv_right;
    private ImageView iv_left, iv_right;
    private onViewClick mClick;

    public TitlebarView(Context context) {
        this(context, null);
    }

    public TitlebarView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public TitlebarView(final Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        LayoutInflater.from(context).inflate(R.layout.layout_title, this);
        initView();
        TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.TitlebarView, defStyleAttr, 0);
        int count = array.getIndexCount();
        for (int i = 0; i < count; i++) {
            int attr = array.getIndex(i);
            switch (attr) {
                case R.styleable.TitlebarView_leftTextColor:
                    tv_left.setTextColor(array.getColor(attr, Color.BLACK));
                    break;
                case R.styleable.TitlebarView_leftDrawble:
                    iv_left.setImageResource(array.getResourceId(attr, 0));
                    break;
                case R.styleable.TitlebarView_leftText:
                    tv_left.setText(array.getString(attr));
                    break;
                case R.styleable.TitlebarView_centerTextColor:
                    tv_title.setTextColor(array.getColor(attr, Color.BLACK));
                    break;
                case R.styleable.TitlebarView_centerTitle:
                    tv_title.setText(array.getString(attr));
                    break;
                case R.styleable.TitlebarView_rightDrawable:
                    iv_right.setImageResource(array.getResourceId(attr, 0));
                    break;
                case R.styleable.TitlebarView_rightText:
                    tv_right.setText(array.getString(attr));
                    break;
                case R.styleable.TitlebarView_rightTextColor:
                    tv_right.setTextColor(array.getColor(attr, Color.BLACK));
                    break;
            }
        }
        array.recycle();
        layout_left.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                mClick.leftClick();
            }
        });
        layout_right.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                mClick.rightClick();
            }
        });

    }

    private void initView() {
        tv_left = findViewById(R.id.tv_left);
        tv_title = findViewById(R.id.tv_title);
        tv_right = findViewById(R.id.tv_right);
        iv_left = findViewById(R.id.iv_left);
        iv_right = findViewById(R.id.iv_right);
        layout_left = findViewById(R.id.layout_left);
        layout_right = findViewById(R.id.layout_right);
    }

    public void setOnViewClick(onViewClick click) {
        this.mClick = click;
    }

    //设置标题
    public void setTitle(String title) {
        if (!TextUtils.isEmpty(title)) {
            tv_title.setText(title);
        }
    }

    //设置左标题
    public void setLeftText(String title) {
        if (!TextUtils.isEmpty(title)) {
            tv_left.setText(title);
        }
    }

    //设置右标题
    public void setRightText(String title) {
        if (!TextUtils.isEmpty(title)) {
            tv_right.setText(title);
        }
    }

    //设置标题大小
    public void setTitleSize(int size) {
        if (tv_title != null) {
            tv_title.setTextSize(TypedValue.COMPLEX_UNIT_SP, size);
        }
    }

    //设置左标题大小
    public void setLeftTextSize(int size) {
        if (tv_left != null) {
            tv_left.setTextSize(TypedValue.COMPLEX_UNIT_SP, size);
        }
    }

    //设置右标题大小
    public void setRightTextSize(int size) {
        if (tv_right != null) {
            tv_right.setTextSize(TypedValue.COMPLEX_UNIT_SP, size);
        }
    }

    //设置左图标
    public void setLeftDrawable(int res) {
        if (iv_left != null) {
            iv_left.setImageResource(res);
        }
    }

    //设置右图标
    public void setRightDrawable(int res) {
        if (iv_right != null) {
            iv_right.setImageResource(res);
        }
    }

    public interface onViewClick {
        void leftClick();

        void rightClick();
    }

}

引用如下：

<com.example.testing.mycustomview.TitlebarView
        android:id="@+id/title"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:background="@color/colorAccent"
        app:centerTitle="自定义标题"
        app:centerTextColor="#FFF"
        app:leftDrawble="@drawable/ic_write_back"
        app:leftTextColor="#FFF"
        app:leftText="返回"
        app:rightDrawable="@android:drawable/ic_btn_speak_now"
        app:rightText="语音"
        app:rightTextColor="#FFF"
        />

代码中调用：

TitlebarView titlebarView= (TitlebarView) findViewById(R.id.title);
        titlebarView.setTitleSize(20);
        titlebarView.setTitle("标题栏");
        titlebarView.setOnViewClick(new TitlebarView.onViewClick() {
            @Override
            public void leftClick() {
                Toast.makeText(MainActivity.this,"左边",Toast.LENGTH_SHORT).show();
            }

            @Override
            public void rightClick() {
                Toast.makeText(MainActivity.this,"右边",Toast.LENGTH_SHORT).show();
            }
        });

感谢：
Android封装一个自定义标题栏

网友评论

Android轮子哥:楼主写得不错，另外推荐一篇，纯手工打造一个通用的标题栏TitleBar：https://www.jianshu.com/p/ccf6506335e7
Android轮子哥:@方毅超多谢支持哈
颤抖的闪电:@getActivity 你写的这篇更加深入的介绍了编写的每一个步骤，……想必是大牛…学习了

本文标题：Android自定义标题栏

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