android studio 自定义控件

第一种方式：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:background="#ff28f010"
    android:layout_height="100px">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/ic_launcher"
        android:id="@+id/imageButton"
        android:gravity="center"
        android:text="返回"
        android:textColor="#f0a4cc"
        android:layout_margin="5dp"
        />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="100px"
        android:id="@+id/textView2"
        android:text="标题"
        android:gravity="center_vertical|center_horizontal"
        android:textSize="45px"

        android:layout_weight="0.23" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/imageButton2"
        android:layout_margin="5dp"
        android:background="@drawable/ic_launcher"
        android:textColor="#f0a4cc"
        android:text="编辑"/>

</LinearLayout>

如果其他的地方引用，直接使用<include layout="@layout/title"/>

第二种方式：

xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <RelativeLayout
        android:layout_width="match_parent"
        android:background="#0000ff"
        android:layout_height="45dp">

        <Button
            android:id="@+id/title_bar_left"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:layout_marginLeft="5dp"
            android:background="@mipmap/ic_launcher"
            android:minHeight="45dp"
            android:minWidth="45dp"
            android:textSize="14sp" />

        <TextView
            android:id="@+id/title_bar_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:text="登录"
            android:singleLine="true"
            android:textSize="17sp" />

        <Button
            android:id="@+id/title_bar_right"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:layout_marginRight="7dp"
            android:text="提交"
            android:textColor="@android:color/white"
            android:background="@null"
            android:minHeight="45dp"
            android:minWidth="45dp"
            android:textSize="14sp" />
    </RelativeLayout>

</LinearLayout>

attrs。xml代码

<declare-styleable name="CustomTitleBar">
        <attr name="title_background_color" format="reference|integer" />
        <attr name="left_button_visible" format="boolean" />
        <attr name="right_button_visible" format="boolean" />
        <attr name="title_text" format="string" />
        <attr name="title_text_color" format="color" />
        <attr name="title_text_drawable" format="reference|integer" />
        <attr name="right_button_text" format="string" />
        <attr name="right_button_text_color" format="color" />
        <attr name="right_button_drawable" format="reference|integer" />
        <attr name="left_button_text" format="string" />
        <attr name="left_button_text_color" format="color" />
        <attr name="left_button_drawable" format="reference|integer" />
    </declare-styleable>

自定义：

public class CustomTitleBar  extends RelativeLayout {

    private Button titleBarLeftBtn;
    private Button titleBarRightBtn;
    private TextView titleBarTitle;

    public CustomTitleBar(Context context, AttributeSet attrs) {
        super(context, attrs);
        LayoutInflater.from(context).inflate(R.layout.custom_title_bar, this, true);
        titleBarLeftBtn = (Button) findViewById(R.id.title_bar_left);
        titleBarRightBtn = (Button) findViewById(R.id.title_bar_right);
        titleBarTitle = (TextView) findViewById(R.id.title_bar_title);

        TypedArray attributes = context.obtainStyledAttributes(attrs, R.styleable.CustomTitleBar);
        if (attributes != null) {
            //处理titleBar背景色
            int titleBarBackGround = attributes.getResourceId(R.styleable.CustomTitleBar_title_background_color, Color.GREEN);
            setBackgroundResource(titleBarBackGround);
            //先处理左边按钮
            //获取是否要显示左边按钮
            boolean leftButtonVisible = attributes.getBoolean(R.styleable.CustomTitleBar_left_button_visible, true);
            if (leftButtonVisible) {
                titleBarLeftBtn.setVisibility(View.VISIBLE);
            } else {
                titleBarLeftBtn.setVisibility(View.INVISIBLE);
            }
            //设置左边按钮的文字
            String leftButtonText = attributes.getString(R.styleable.CustomTitleBar_left_button_text);
            if (!TextUtils.isEmpty(leftButtonText)) {
                titleBarLeftBtn.setText(leftButtonText);
                //设置左边按钮文字颜色
                int leftButtonTextColor = attributes.getColor(R.styleable.CustomTitleBar_left_button_text_color, Color.WHITE);
                titleBarLeftBtn.setTextColor(leftButtonTextColor);
            } else {
                //设置左边图片icon 这里是二选一 要么只能是文字 要么只能是图片
                int leftButtonDrawable = attributes.getResourceId(R.styleable.CustomTitleBar_left_button_drawable, R.mipmap.ic_launcher);
                if (leftButtonDrawable != -1) {
                    titleBarLeftBtn.setBackgroundResource(leftButtonDrawable);
                }
            }

            //处理标题
            //先获取标题是否要显示图片icon
            int titleTextDrawable = attributes.getResourceId(R.styleable.CustomTitleBar_title_text_drawable, -1);
            if (titleTextDrawable != -1) {
                titleBarTitle.setBackgroundResource(titleTextDrawable);
            } else {
                //如果不是图片标题 则获取文字标题
                String titleText = attributes.getString(R.styleable.CustomTitleBar_title_text);
                if (!TextUtils.isEmpty(titleText)) {
                    titleBarTitle.setText(titleText);
                }
                //获取标题显示颜色
                int titleTextColor = attributes.getColor(R.styleable.CustomTitleBar_title_text_color, Color.WHITE);
                titleBarTitle.setTextColor(titleTextColor);
            }

            //先处理右边按钮
            //获取是否要显示右边按钮
            boolean rightButtonVisible = attributes.getBoolean(R.styleable.CustomTitleBar_right_button_visible, true);
            if (rightButtonVisible) {
                titleBarRightBtn.setVisibility(View.VISIBLE);
            } else {
                titleBarRightBtn.setVisibility(View.INVISIBLE);
            }
            //设置右边按钮的文字
            String rightButtonText = attributes.getString(R.styleable.CustomTitleBar_right_button_text);
            if (!TextUtils.isEmpty(rightButtonText)) {
                titleBarRightBtn.setText(rightButtonText);
                //设置右边按钮文字颜色
                int rightButtonTextColor = attributes.getColor(R.styleable.CustomTitleBar_right_button_text_color, Color.WHITE);
                titleBarRightBtn.setTextColor(rightButtonTextColor);
            } else {
                //设置右边图片icon 这里是二选一 要么只能是文字 要么只能是图片
                int rightButtonDrawable = attributes.getResourceId(R.styleable.CustomTitleBar_right_button_drawable, -1);
                if (rightButtonDrawable != -1) {
                    titleBarRightBtn.setBackgroundResource(rightButtonDrawable);
                }
            }
            attributes.recycle();
        }
    }

    public void setTitleClickListener(OnClickListener onClickListener) {
        if (onClickListener != null) {
            titleBarLeftBtn.setOnClickListener(onClickListener);
            titleBarRightBtn.setOnClickListener(onClickListener);
        }
    }

    public Button getTitleBarLeftBtn() {
        return titleBarLeftBtn;
    }

    public Button getTitleBarRightBtn() {
        return titleBarRightBtn;
    }

    public TextView getTitleBarTitle() {
        return titleBarTitle;
    }

}

最后其他布局使用

 <com.cqytjr.www.cheji.view.CustomTitleBar
        android:layout_width="match_parent"
        android:layout_height="45dp"
        android:layout_marginTop="10dp"
        tools:left_button_text="左边"
        tools:left_button_text_color="#ff0000"
        tools:right_button_drawable="@mipmap/titlebar_add_icon"
        tools:title_background_color="@color/blue"
        tools:title_text="标题5" />