自定义控件：实现加减功能

来源：互联网发布：关于java 编辑：程序博客网时间：2024/06/10 06:22

XML：

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:layout_width="match_parent"              android:layout_height="wrap_content">    <ImageView        android:id="@id/back"        android:layout_centerVertical="true"        android:textColor="@color/white"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:visibility="gone"/>    <EditText        android:id="@+id/toolbar_searchview"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:hint="请输入内容"        android:textSize="14sp"        android:gravity="center"        android:padding="3dp"        android:background="@drawable/toolbar_edittext_bg_shape"        android:layout_centerVertical="true"        android:textColor="@color/white"        android:textColorHint="@color/white"        android:drawableLeft="@mipmap/icon_search"        android:visibility="gone"        />    <TextView        android:id="@+id/toolbar_title"        android:text="haha"        android:textSize="20sp"        android:textColor="@color/white"        android:layout_centerInParent="true"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:visibility="gone"        />    <!--style="@android:style/Widget.Material.Toolbar.Button.Navigation"-->    <Button        android:id="@+id/toolbar_rightButton"        android:layout_alignParentRight="true"        android:layout_centerVertical="true"        android:textColor="@color/white"        style="@android:style/Widget.Material.Toolbar.Button.Navigation"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:visibility="visible"/></RelativeLayout>

attrs ：

    <declare-styleable name="NumberAddView">        <!--<attr name="leftButtonIcon" format="reference"/>-->        <attr name="value" format="integer"/>        <attr name="maxNum" format="integer"/>        <attr name="minNum" format="integer"/>    </declare-styleable>

Java代码：

package com.vily.cartshop.ui;import android.content.Context;import android.graphics.drawable.Drawable;import android.support.annotation.Nullable;import android.support.annotation.StringRes;import android.support.v7.widget.TintTypedArray;import android.support.v7.widget.Toolbar;import android.util.AttributeSet;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.Button;import android.widget.EditText;import android.widget.ImageView;import android.widget.TextView;import com.vily.cartshop.R;/** * description : * user : Administrator * Created by Administrator on 2017\11\30 0030. */public class MyToolBar extends Toolbar {    private LayoutInflater mLayoutInflater;    private View mView;    private EditText mToolbar_searchview;    private Button mToolbar_rightButton;    private TextView mToolbar_title;    private ImageView mBack;    public MyToolBar(Context context) {        this(context,null);    }    public MyToolBar(Context context, @Nullable AttributeSet attrs) {        this(context, attrs,0);    }    public MyToolBar(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        initView();        setContentInsetsRelative(10,10);        if(attrs!=null){            final TintTypedArray a = TintTypedArray.obtainStyledAttributes(getContext(), attrs,                    R.styleable.MyToolBar, defStyleAttr, 0);            //  从属性中获取  rightButtonIcon            Drawable rightIcon = a.getDrawable(R.styleable.MyToolBar_rightButtonIcon);            if(rightIcon!=null){                setRightBtnIcon(rightIcon);            }            //  从属性中获取  rightButtonTitle            String rightTitle = a.getString(R.styleable.MyToolBar_rightButtonTitle);            if(rightTitle!=null){                setRightBtnTitle(rightTitle);            }            //  从属性中获取  backIcon            Drawable backIcon = a.getDrawable(R.styleable.MyToolBar_backIcon);            if(backIcon!=null){                setBackBtnIcon(backIcon);            }            boolean isShowSearchView = a.getBoolean(R.styleable.MyToolBar_isShowSearchView, false);            if(isShowSearchView){                showSearchView();                hideTitleView();            }            //  资源回收            a.recycle();        }    }    private void initView() {        if(mView==null){            mLayoutInflater=LayoutInflater.from(getContext());            mView = mLayoutInflater.inflate(R.layout.layout_toolbar, null);            mToolbar_searchview = (EditText) mView.findViewById(R.id.toolbar_searchview);            mToolbar_title = (TextView) mView.findViewById(R.id.toolbar_title);            mToolbar_rightButton = (Button) mView.findViewById(R.id.toolbar_rightButton);            mBack = (ImageView) mView.findViewById(R.id.back);            //然后使用LayoutParams把控件添加到子view中            LayoutParams params=new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.CENTER_HORIZONTAL);            addView(mView,params);        }    }    @Override    public void setTitle(@StringRes int resId) {        setTitle(getContext().getText(resId));    }    //  设置字体  重写父类的 settitle 方法    @Override    public void setTitle(CharSequence title) {        initView();        if(mToolbar_title!=null){            mToolbar_title.setText(title);            showTitleView();        }    }    //  显示 title    private void showTitleView() {        if(mToolbar_title!=null){            mToolbar_title.setVisibility(View.VISIBLE);        }    }    //  隐藏title    private void hideTitleView() {        if(mToolbar_title!=null){            mToolbar_title.setVisibility(View.GONE);        }    }    //   设置右侧ImageBtn  的图片    public void setRightBtnIcon(Drawable icon){        if(mToolbar_rightButton!=null){            mToolbar_rightButton.setBackgroundDrawable(icon);            mToolbar_rightButton.setVisibility(View.VISIBLE);        }    }    //   设置右侧  ImageBtn 的图片    //   设置右侧  ImageBtn 的图片    public void setRightBtnIcon(int icon){        setRightBtnIcon(getResources().getDrawable(icon));    }    //   设置右侧ImageBtn  的title    public void setRightBtnTitle(CharSequence title){        if(mToolbar_rightButton!=null){            mToolbar_rightButton.setText(title);            mToolbar_rightButton.setVisibility(View.VISIBLE);        }    }    //   设置右侧  ImageBtn 的title    private void setRightBtnTitle(int ResId){        setRightBtnTitle(getContext().getText(ResId));    }    //   设置左侧图片    private void setBackBtnIcon(Drawable icon){        if(mBack!=null){            mBack.setImageDrawable(icon);            mBack.setVisibility(View.VISIBLE);        }    }    //   设置左侧图片    private void setBackBtnIcon(int icon){        setRightBtnIcon(getResources().getDrawable(icon));    }    private void showSearchView() {        if(mToolbar_searchview!=null){            mToolbar_searchview.setVisibility(View.VISIBLE);        }    }    public void hideSearchView() {        if(mToolbar_searchview!=null){            mToolbar_searchview.setVisibility(View.GONE);        }    }    public void setRightBtnOnClick(OnClickListener listener){        mToolbar_rightButton.setOnClickListener(listener);    }    public void setBackBtnOnClick(OnClickListener listener){        mBack.setOnClickListener(listener);    }    public Button getRightBtn(){        return mToolbar_rightButton;    }}

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