Android自定义View之自定义组合控件

Posted 2021-06-23 fakerXuan

运行效果

android自定义组合控件之titleBar

https://www.bilibili.com/video/BV17w411Z7pV/

代码

• values

attrs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="FlowLayout">
        <attr name="android:gravity"/>
        <attr name="android:horizontalSpacing" format="dimension |reference"/>
    </declare-styleable>
    <declare-styleable name="FlowLayout_Layout">
        <attr name="android:layout_gravity"/>
    </declare-styleable>

    <declare-styleable name="TitleBar">
        <attr name="title_text_color" format="color"/>
        <attr name="title_bg" format="color"/>
        <attr name="title_text" format="string"/>
    </declare-styleable>
</resources>

color.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="purple_200">#FFBB86FC</color>
    <color name="purple_500">#FF6200EE</color>
    <color name="purple_700">#FF3700B3</color>
    <color name="teal_200">#FF03DAC5</color>
    <color name="teal_700">#FF018786</color>
    <color name="black">#FF000000</color>
    <color name="white">#FFFFFFFF</color>
    <color name="colorPrimary">#008577</color>
    <color name="colorPrimaryDark">#00574B</color>
    <color name="colorAccent">#D81B60</color>
</resources>

• Layout

activity_main3.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <com.example.as.proj.myviewgroupdemo2.TitleBar
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/title"
        android:layout_width="match_parent"
        android:layout_height="45dp"
        app:title_text="自定义组合控件"
        app:title_bg="@android:color/holo_orange_dark"
        app:title_text_color="@android:color/holo_blue_dark">
    </com.example.as.proj.myviewgroupdemo2.TitleBar>

</LinearLayout>


view_costomtile.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout_titlebar_rootlayout"
    android:layout_width="fill_parent"
    android:layout_height="45dp"
    >

    <ImageView
        android:id="@+id/iv_titlebar_left"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_alignParentLeft="true"
        android:layout_centerInParent="true"
        android:paddingLeft="15dp"
        android:paddingRight="15dp"
        android:src="@drawable/ico_return"
        />
    <TextView
        android:id="@+id/tv_titlebar_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:maxEms="11"
        android:singleLine="true"
        android:ellipsize="end"
        android:textStyle="bold"/>
    <ImageView
        android:id="@+id/iv_titlebar_right"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_alignParentRight="true"
        android:layout_centerInParent="true"
        android:src="@drawable/title_right"
        android:gravity="center"
        android:padding="15dp"
        />
</RelativeLayout>

• Java

MainActivity3.java
package com.example.as.proj.myviewgroupdemo2;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

public class MainActivity3 extends AppCompatActivity {

    private TitleBar mTitleBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main3);
        mTitleBar = (TitleBar) this.findViewById(R.id.title);

        mTitleBar.setLeftListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity3.this, "点击左键", Toast.LENGTH_SHORT).show();
            }
        });
        mTitleBar.setRightListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity3.this, "点击右键", Toast.LENGTH_SHORT).show();
            }
        });
    }
}


TitleBar.java
package com.example.as.proj.myviewgroupdemo2;

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.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

public class TitleBar extends RelativeLayout {
    private ImageView iv_titlebar_left;
    private ImageView getIv_titlebar_right;
    private TextView tv_titlebar_title;
    private RelativeLayout layout_titlebar_rootlayout;
    private int mColor = Color.BLUE;
    private int mTextColor = Color.WHITE;
    private String titleName;

    public TitleBar(Context context) {
        super(context);
        initView(context);
    }

    public TitleBar(Context context, AttributeSet attrs) {
        super(context, attrs);
        initTypedArray(context, attrs);
        initView(context);
    }


    public TitleBar(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initTypedArray(context, attrs);
        initView(context);
    }

    private void initTypedArray(Context context, AttributeSet attrs){
        TypedArray mTypedArray = context.obtainStyledAttributes(attrs, R.styleable.TitleBar);
        mColor = mTypedArray.getColor(R.styleable.TitleBar_title_bg, Color.BLUE);
        mTextColor = mTypedArray.getColor(R.styleable.TitleBar_title_text_color, Color.WHITE);
        titleName = mTypedArray.getString(R.styleable.TitleBar_title_text);
        //获取资源后要及时回收
        mTypedArray.recycle();
    }

    private void initView(Context context){
        LayoutInflater.from(context).inflate(R.layout.view_customtile, this, true);
        iv_titlebar_left = (ImageView)findViewById(R.id.iv_titlebar_left);
        getIv_titlebar_right = (ImageView)findViewById(R.id.iv_titlebar_right);
        tv_titlebar_title = (TextView)findViewById(R.id.tv_titlebar_title);
        layout_titlebar_rootlayout = (RelativeLayout)findViewById(R.id.layout_titlebar_rootlayout);
        //设置背景颜色
        layout_titlebar_rootlayout.setBackgroundColor(mColor);
        //设置标题文字颜色
        tv_titlebar_title.setTextColor(mTextColor);
        setTitle(titleName);
    }


    public void setTitle(String titlename) {
        if (!TextUtils.isEmpty(titlename)) {
            tv_titlebar_title.setText(titlename);
        }
    }

    public void setLeftListener(OnClickListener onClickListener) {
        iv_titlebar_left.setOnClickListener(onClickListener);
    }

    public void setRightListener(OnClickListener onClickListener) {
        getIv_titlebar_right.setOnClickListener(onClickListener);
        //iv_titlebar_right.setOnClickListener(onClickListener);
    }

}