private void init(Context context, AttributeSet attrs) {
mContext = context;
TypedArray typedArray = getContext().obtainStyledAttributes(attrs, R.styleable.ExpandableView);
mAnimationDuration =
typedArray.getInt(R.styleable.ExpandableView_animDuration, DEFAULT_ANIM_DURATION);
mAnimAlphaStart =
typedArray.getFloat(R.styleable.ExpandableView_animAlphaStart, DEFAULT_ANIM_ALPHA_START);
mExpandDrawable = typedArray.getDrawable(R.styleable.ExpandableView_expandDrawable);
mCollapseDrawable = typedArray.getDrawable(R.styleable.ExpandableView_collapseDrawable);
mCollapsed = typedArray.getBoolean(R.styleable.ExpandableView_viewTitleShow, DEFAULT_SHOW);
mTitleImage = typedArray.getDrawable(R.styleable.ExpandableView_viewTitleImage);
if (mExpandDrawable == null) {
mExpandDrawable = getDrawable(getContext(), R.drawable.ic_expand_more_black_16dp);
}
if (mCollapseDrawable == null) {
mCollapseDrawable = getDrawable(getContext(), R.drawable.ic_expand_less_black_16dp);
}
setOrientation(LinearLayout.VERTICAL);
title = new RelativeLayout(context);
int color = typedArray.getColor(R.styleable.ExpandableView_viewTitleBacColor, Color.WHITE);
title.setOnClickListener(this);
title.setBackgroundColor(color);
// title.setGravity(Gravity.CENTER_VERTICAL);
title.setVerticalGravity(Gravity.CENTER_VERTICAL);
if (mTitleImage != null) {
initTitleImage();
}
mTitlt = typedArray.getString(R.styleable.ExpandableView_viewTitle);
title_size =
typedArray.getDimension(
R.styleable.ExpandableView_viewTitleSize, DisplayUtil.sp2px(mContext, 10));
title_color =
typedArray.getColor(
R.styleable.ExpandableView_viewTitleColor,
getResources().getColor(R.color.color_909090));
line_color =
typedArray.getColor(
R.styleable.ExpandableView_viewTitleLineColor,
getResources().getColor(R.color.color_bbbbbb));
if (mTitlt != null) {
initTitleText();
}
typedArray.recycle();
LayoutParams layoutParams =
new LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT); // 定义一个LayoutParams
layoutParams.setMargins(0, DisplayUtil.dip2px(context, 10), 0, 0);
setLayoutParams(layoutParams);
}
/** 初始化标题题目 */
private void initTitleText() {
int padLeft = DisplayUtil.dip2px(mContext, 25);
int h = 0;
if (mTitleImage != null) {
h = mTitleImage.getMinimumHeight();
}
TextView tv = new TextView(mContext);
tv.setTextSize(title_size);
tv.setTextColor(title_color);
tv.setText(mTitlt);
int padTop = DisplayUtil.dip2px(mContext, 10);
tv.setPadding(padLeft + h, padTop, 0, padTop);
title.addView(tv);
mButton = new ImageButton(mContext);
mButton.setImageDrawable(mCollapsed ? mExpandDrawable : mCollapseDrawable);
h = mExpandDrawable.getMinimumHeight();
MarginLayoutParams mp = new MarginLayoutParams(h, h); // item的宽高
mp.setMargins(0, 0, padLeft, 0); // 分别是margin_top那四个属性
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(mp);
params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
params.addRule(RelativeLayout.CENTER_VERTICAL);
mButton.setLayoutParams(params);
title.addView(mButton);
// title.measure(0, 0);
View line = new View(mContext);
line.setBackgroundColor(line_color);
h = DisplayUtil.dip2px(mContext, 1);
MarginLayoutParams mpLine = new MarginLayoutParams(LayoutParams.MATCH_PARENT, h); // item的宽高
title.measure(0, 0);
h = title.getMeasuredHeight() - h;
mpLine.setMargins(0, h, 0, 0); // 分别是margin_top那四个属性
RelativeLayout.LayoutParams mpLineparams = new RelativeLayout.LayoutParams(mpLine);
line.setLayoutParams(mpLineparams);
title.addView(line);
View line1 = new View(mContext);
line1.setBackgroundColor(line_color);
h = DisplayUtil.dip2px(mContext, 1);
MarginLayoutParams mpLine1 = new MarginLayoutParams(LayoutParams.MATCH_PARENT, h); // item的宽高
RelativeLayout.LayoutParams mpLineparams1 = new RelativeLayout.LayoutParams(mpLine1);
line1.setLayoutParams(mpLineparams1);
title.addView(line1);
mMinHeight = title.getMeasuredHeight();
addView(title);
}
/** 初始化标题图片 */
private void initTitleImage() {
int padLeft = DisplayUtil.dip2px(mContext, 20);
int h = mTitleImage.getMinimumHeight();
ImageView imageView = new ImageView(mContext);
imageView.setImageDrawable(mTitleImage);
MarginLayoutParams mp = new MarginLayoutParams(h, h); // item的宽高
mp.setMargins(padLeft, 0, 0, 0);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(mp);
params.addRule(RelativeLayout.CENTER_VERTICAL);
imageView.setLayoutParams(params);
title.addView(imageView);
}