CommonTopView常见的顶部view

package com.example.zd.baselibrary.view;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.support.annotation.IdRes;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.zd.baselibrary.R;

/**
 * Package: com.example.zd.baselibrary.view
 * 

 * describe: 常见的activity顶部布局
 * 一般是左边返回键，中间标题，右边图标
 *
 * @author zhangdong on 2019/5/6 0006.
 * @version 1.0
 * @see .
 * @since 1.0
 */
public class CommonTopView extends FrameLayout {

    public static final String TYPE_LEFT = "typeOfLeftView";
    public static final String TYPE_RIGHT = "typeOfRightView";

    private ImageView imgLeft;
    private ImageView imgRight;
    private TextView tvTitle;

    private Drawable leftIcon;
    private Drawable rightIcon;
    private String topTitle;
    private int textColor;
    private float textSize;

    private TopViewClickListener viewClickListener;

    public void setViewClickListener(TopViewClickListener viewClickListener) {
        this.viewClickListener = viewClickListener;
    }

    public CommonTopView(@NonNull Context context) {
        this(context, null);
    }

    public CommonTopView(@NonNull Context context, @Nullable AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CommonTopView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initView();
        TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.CommonTopView);
        leftIcon = typedArray.getDrawable(R.styleable.CommonTopView_leftIcon);
        rightIcon = typedArray.getDrawable(R.styleable.CommonTopView_rightIcon);
        topTitle = typedArray.getString(R.styleable.CommonTopView_topTitle);
        textColor = typedArray.getColor(R.styleable.CommonTopView_android_textColor, Color.BLACK);
        textSize = typedArray.getDimensionPixelSize(R.styleable.CommonTopView_android_textSize, 18);
        typedArray.recycle();
        updateView();
    }

    private void initView() {
        View inflate = LayoutInflater.from(getContext())
                .inflate(R.layout.layout_common_top_view, this, true);

        imgLeft = ((ImageView) inflate.findViewById(R.id.img_left));
        tvTitle = ((TextView) inflate.findViewById(R.id.tv_title));
        imgRight = ((ImageView) inflate.findViewById(R.id.img_right));

        imgLeft.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                if (null != viewClickListener)
                    viewClickListener.viewClick(TYPE_LEFT, view);
            }
        });

        imgRight.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                if (null != viewClickListener)
                    viewClickListener.viewClick(TYPE_RIGHT, view);
            }
        });
    }

    private void updateView() {
        if (null != leftIcon)
            imgLeft.setImageDrawable(leftIcon);
        if (null != rightIcon)
            imgRight.setImageDrawable(rightIcon);
        if (null != tvTitle) {
            tvTitle.setText(topTitle);
            tvTitle.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
            tvTitle.setTextColor(textColor);
        }

    }

    /**
     * 设置左边的图标
     *
     * @param leftIcon 左边图标的资源id
     */
    @SuppressLint("ResourceType")
    public void setLeftIcon(@IdRes int leftIcon) {
        if (0 == leftIcon)
            return;
        if (null != imgLeft)
            imgLeft.setImageResource(leftIcon);
    }

    /**
     * 设置右边的图标
     *
     * @param rightIcon 右边的图标资源id
     */
    @SuppressLint("ResourceType")
    public void setRightIcon(@IdRes int rightIcon) {
        if (0 == rightIcon)
            return;
        if (null != imgRight)
            imgRight.setImageResource(rightIcon);
    }

    /**
     * 设置中间的文字显示
     *
     * @param topTitle 文字类容
     */
    public void setTopTitle(String topTitle) {
        this.topTitle = topTitle;
        if (null != topTitle)
            tvTitle.setText(topTitle);
    }

    /**
     * 设置文字颜色
     *
     * @param textColor .
     */
    public void setTextColor(int textColor) {
        this.textColor = textColor;
        if (null != tvTitle)
            tvTitle.setTextColor(textColor);
    }

    /**
     * 设置文字大小
     *
     * @param textSize .
     */
    public void setTextSize(float textSize) {
        this.textSize = textSize;
        if (null != tvTitle)
            tvTitle.setTextSize(textSize);
    }

    /**
     * 左边的图标是否可见
     *
     * @param visible 是否可见
     */
    public void setImgLeftVisible(boolean visible) {
        if (null != imgLeft)
            imgLeft.setVisibility(visible ? VISIBLE : INVISIBLE);
    }

    /**
     * 右边的图标是否可见
     *
     * @param visible 是否可见
     */
    public void setImgRightVisible(boolean visible) {
        if (null != imgRight)
            imgRight.setVisibility(visible ? VISIBLE : INVISIBLE);
    }

    public interface TopViewClickListener {
        void viewClick(String type, View view);
    }
}

自定义属性

xml布局：

使用：

效果：

image.png

代码中设置相关点击事件：

public class MainActivity extends AppCompatActivity implements CommonTopView.TopViewClickListener {

    private CommonTopView topView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        topView = (CommonTopView) findViewById(R.id.top_view);
        topView.setViewClickListener(this);

    }

    @Override
    public void viewClick(String type, View view) {
        switch (type) {
            case TYPE_LEFT:
                Toast.makeText(this, ">>> left ", Toast.LENGTH_SHORT).show();
                break;
            case TYPE_RIGHT:
                Toast.makeText(this, ">>> right ", Toast.LENGTH_SHORT).show();
                break;
        }
    }
}