[Android开源框架]RevealLayout使用说明

RevealLayout

揭示效果布局，可以指定2个子布局，以圆形揭示效果切换选中状态

GitHub主页

Demo下载

截图

reveal_layout_demo.gif

集成方式

添加依赖

1. 在项目根目录的build.gradle添加仓库地址

allprojects {
    repositories {
        ...
        maven { url 'https://www.jitpack.io' }
    }
}

1. 在项目app目录的build.gradle添加依赖

dependencies {
    implementation 'com.github.goweii:RevealLayout:v1.1.0'
}

布局文件引用

代码中设置监听

revealLayout.setOnCheckedChangeListener(new RevealLayout.OnCheckedChangeListener() {
    @Override
    public void onCheckedChanged(RevealLayout revealLayout, boolean isChecked) {
        // TODO 
    }
});

自定义子类

如一个关注取消关注控件FollowView，只需要继承RevealLayout，然后复写以下3个方法：

1. initAttr(AttributeSet attrs)：获取子类的自定义属性
2. createCheckedView()：创建选中状态视图，并初始化自定义属性
3. createUncheckedView()：创建非选中状态视图，并初始化自定义属性

public class FollowView extends RevealLayout{
    private float mTvTextSize;
    private int mTvPaddingVertical = 0;
    private int mTvPaddingHorizontal = 0;
    private String mTvUnFollowText = "";
    private int mTvUnFollowBgColor;
    private int mTvUnFollowBgRes;
    private int mTvUnFollowTextColor;
    private String mTvFollowText = "";
    private int mTvFollowBgColor;
    private int mTvFollowBgRes;
    private int mTvFollowTextColor;

    public FollowView(Context context) {
        this(context, null);
    }

    public FollowView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public FollowView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void initAttr(AttributeSet attrs) {
        super.initAttr(attrs);
        DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
        TypedArray array = getContext().obtainStyledAttributes(attrs, R.styleable.FollowView);
        mTvPaddingVertical = (int) array.getDimension(R.styleable.FollowView_fv_tv_padding_vertical, 0F);
        mTvPaddingHorizontal = (int) array.getDimension(R.styleable.FollowView_fv_tv_padding_horizontal, 0F);
        mTvTextSize = array.getDimension(R.styleable.FollowView_fv_text_size, metrics.scaledDensity * 14) / metrics.scaledDensity;
        mTvUnFollowText = array.getString(R.styleable.FollowView_fv_unfollowed_text);
        mTvUnFollowBgRes = array.getResourceId(R.styleable.FollowView_fv_unfollowed_bg_res, 0);
        mTvUnFollowBgColor = array.getColor(R.styleable.FollowView_fv_unfollowed_bg_color, 0);
        mTvUnFollowTextColor = array.getColor(R.styleable.FollowView_fv_unfollowed_text_color, 0);
        mTvFollowText = array.getString(R.styleable.FollowView_fv_followed_text);
        mTvFollowBgRes = array.getResourceId(R.styleable.FollowView_fv_followed_bg_res, 0);
        mTvFollowBgColor = array.getColor(R.styleable.FollowView_fv_followed_bg_color, 0);
        mTvFollowTextColor = array.getColor(R.styleable.FollowView_fv_followed_text_color, 0);
        array.recycle();
    }

    @Override
    protected View createCheckedView() {
        TextView tvFollow = new TextView(getContext());
        tvFollow.setTextSize(mTvTextSize);
        tvFollow.setText(mTvFollowText);
        tvFollow.setGravity(Gravity.CENTER);
        tvFollow.setSingleLine();
        if (mTvFollowBgRes > 0) {
            tvFollow.setBackgroundResource(mTvFollowBgRes);
        } else {
            tvFollow.setBackgroundColor(mTvFollowBgColor);
        }
        tvFollow.setTextColor(mTvFollowTextColor);
        tvFollow.setPadding(mTvPaddingHorizontal, mTvPaddingVertical, mTvPaddingHorizontal, mTvPaddingVertical);
        return tvFollow;
    }

    @Override
    protected View createUncheckedView() {
        TextView tvUnFollow = new TextView(getContext());
        tvUnFollow.setTextSize(mTvTextSize);
        tvUnFollow.setText(mTvUnFollowText);
        tvUnFollow.setGravity(Gravity.CENTER);
        tvUnFollow.setSingleLine();
        if (mTvUnFollowBgRes > 0) {
            tvUnFollow.setBackgroundResource(mTvUnFollowBgRes);
        } else {
            tvUnFollow.setBackgroundColor(mTvUnFollowBgColor);
        }
        tvUnFollow.setTextColor(mTvUnFollowTextColor);
        tvUnFollow.setPadding(mTvPaddingHorizontal, mTvPaddingVertical, mTvPaddingHorizontal, mTvPaddingVertical);
        return tvUnFollow;
    }
}