Android 自定義UI控件模板 組合模式

Android 自定義UI控件模板 組合模式：

一.自定義屬性：

    在res/values中建立attr.xml文件，並添加如下代碼(若有則直接添加)：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <!--自定義屬性-->
    <attr name="leftTitleText" format="string" />
    <attr name="leftTitleTextColor" format="color" />
    <attr name="leftTitleTextSize" format="dimension" />
    <attr name="tText" format="string" />
    <attr name="tTextColor" format="color" />
    <attr name="tTextSize" format="dimension" />

    <declare-styleable name="AboutView">
        <attr name="leftTitleText" />
        <attr name="leftTitleTextColor" />
        <attr name="leftTitleTextSize" />
        <attr name="leftTitleBackground" format="color|reference" />
        <attr name="tText" />
        <attr name="tTextColor" />
        <attr name="tTextSize" />
        <attr name="tBackground" format="color|reference" />
    </declare-styleable>
    <!--自定義屬性-->
</resources>

二.自定義控件：

package com.uwo.ui.swipelv.view;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.uwo.ui.swipelv.R;

/**
 * Created by SRain on 2016/3/15.
 *
 * 自定義控件模板--關於中LinearLayout中添加兩個TextView
 */
public class AboutView extends LinearLayout {

    private TextView leftTv, titleTv;

    private String leftText;
    private int leftTvColor;
    private float leftTvTextSize;
    private Drawable leftTvBg;

    private String titleText;
    private int titleTvColor;
    private float titleTvTextSize;
    private Drawable titleTvBg;

    private LayoutParams leftParams;
    private LayoutParams titleParams;

    public AboutView(Context context) {
        super(context);
    }

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
    public AboutView(Context context, AttributeSet attrs) {
        super(context, attrs);

        /**
         * TypeArray 數據結構，獲取xml中自定義屬性值
         * 使用時相似於Map，鍵值對模式
         * leftText = typedArray.getString(R.styleable.AboutView_leftTitleText); 
         * AboutView_leftTitleText 是AboutView自定義屬性中leftTitleText的值
         */
        TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.AboutView);
        leftText = typedArray.getString(R.styleable.AboutView_leftTitleText); 
        leftTvColor = typedArray.getColor(R.styleable.AboutView_leftTitleTextColor, 0);
        leftTvTextSize = typedArray.getDimension(R.styleable.AboutView_leftTitleTextSize, 0);
        leftTvBg = typedArray.getDrawable(R.styleable.AboutView_leftTitleBackground);

        titleText = typedArray.getString(R.styleable.AboutView_tText);
        titleTvColor = typedArray.getColor(R.styleable.AboutView_tTextColor, 0);
        titleTvTextSize = typedArray.getDimension(R.styleable.AboutView_tTextSize, 0);
        titleTvBg = typedArray.getDrawable(R.styleable.AboutView_tBackground);

        typedArray.recycle();

        leftTv = new TextView(context);
        titleTv = new TextView(context);

        leftTv.setText(leftText);
        leftTv.setTextColor(leftTvColor);
        leftTv.setTextSize(leftTvTextSize);
        leftTv.setBackground(leftTvBg);

        titleTv.setText(titleText);
        titleTv.setTextColor(titleTvColor);
        titleTv.setTextSize(titleTvTextSize);
        titleTv.setBackground(titleTvBg);

        leftParams = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
        leftParams.gravity = Gravity.CENTER;
        leftParams.weight = 3;
        leftTv.setGravity(Gravity.CENTER);
        addView(leftTv, leftParams);

        titleParams = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
        titleParams.gravity = Gravity.LEFT | Gravity.CENTER_VERTICAL;
        titleParams.weight = 2;
        titleTv.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL);
        addView(titleTv, titleParams);
    }
}

三.佈局中使用

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

    
    <!--xmlns:about=" 引用本身的屬性 -->
    <com.uwo.ui.swipelv.view.AboutView
        android:orientation="horizontal"
        android:layout_centerInParent="true"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:paddingLeft="10dp"
        android:paddingRight="10dp"
        about:leftTitleBackground="#de000000"
        about:leftTitleText="版本更新"
        about:leftTitleTextColor="#fff5f5f5"
        about:leftTitleTextSize="10sp"
        about:tBackground="#de000000"
        about:tTextSize="10sp"
        about:tText="v 1.0.0"
        about:tTextColor="#fff5f5f5" />

</RelativeLayout>

 

Android: 自定義View

http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2016/1129/6820.html