Android 流式布局(修改版) 当达到两行，隐藏多余的
public class SearchLayout extends LinearLayout {
private final int mParentWidth;
private float textSize;
private boolean textColor;
private boolean background;
private boolean isHide = true;
public void setHide(boolean hide) {
isHide = hide;
}
public SearchLayout(Context context, AttributeSet attrs) {
super(context, attrs);
//获取屏幕的宽度
DisplayMetrics metrics = context.getResources().getDisplayMetrics();
mParentWidth = metrics.widthPixels - dip2px(16f);
//自定义属性
TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.SearchLayout);
background = array.getBoolean(R.styleable.SearchLayout_Sear_background,false);
textColor = array.getBoolean(R.styleable.SearchLayout_Sear_textColor, false);
textSize = array.getDimension(R.styleable.SearchLayout_Sear_textSize, 0);
//方向为纵向
setOrientation(VERTICAL);
}
//移除子控件
public void removeView() {
removeAllViews();
}
//流式布局
public void setData(List<String> data) {
if (data.isEmpty()){
return;
}
//获取一个子布局
LinearLayout linearLayout = getLinearLayout();
for (int i = 0; i < data.size(); i++) {
//标题
final String name = data.get(i);
//已存在的宽度
int numBar = 0;
//子控件的个数
int count = linearLayout.getChildCount();
for (int j = 0; j < count; j++) {
//一个一个获取
ThemeTextView textView = (ThemeTextView) linearLayout.getChildAt(j);
//获取左外边距
LayoutParams params = (LayoutParams) textView.getLayoutParams();
int leftWidth = params.leftMargin;
int rightWidth = params.rightMargin;
//获取宽高
textView.measure(getMeasuredWidth(), getMeasuredHeight());
//计算已存在的宽度
numBar += textView.getMeasuredWidth()+leftWidth+rightWidth;
}
//获取一个子控件
ThemeTextView text = getText();
//给每一个控件设置点击事件
text.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
if (onItemTitleClickListener != null){
onItemTitleClickListener.onItemTitle(name);
}
}
});
//赋值
text.setText(name);
//获取宽高
text.measure(getMeasuredWidth(), getMeasuredHeight());
//当前控件的宽度
int textWidth = text.getMeasuredWidth() + text.getPaddingLeft() + text.getPaddingRight();
//判断是否超过屏幕
if (isHide && getChildCount() == 2){
ImageView imageView = getMore(false);
LayoutParams layoutParams = (LayoutParams) imageView.getLayoutParams();
int leftM = layoutParams.leftMargin;
int rightM = layoutParams.rightMargin;
imageView.measure(getMeasuredWidth(), getMeasuredHeight());
int width = imageView.getMeasuredWidth() + imageView.getPaddingLeft() + imageView.getPaddingRight();
int imageWidth = leftM + rightM + width;
if (numBar + textWidth + imageWidth >= mParentWidth){
if (numBar + textWidth + imageWidth > mParentWidth){
imageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (onMoreClickListener != null){
onMoreClickListener.onShowMore(isHide);
}
}
});
linearLayout.addView(imageView);
return;
} else {
imageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (onMoreClickListener != null){
onMoreClickListener.onShowMore(isHide);
}
}
});
linearLayout.addView(text);
linearLayout.addView(imageView);
return;
}
}else {
if (i + 1 <= data.size()-1) {
String title = data.get(i + 1);
ThemeTextView themeTextView = getText();
themeTextView.setText(title);
themeTextView.measure(getMeasuredWidth(),getMeasuredHeight());
int themeTextViewWidth = themeTextView.getMeasuredWidth() + themeTextView.getPaddingLeft() + themeTextView.getPaddingRight();
if (mParentWidth >= numBar + textWidth + imageWidth + themeTextViewWidth ){
linearLayout.addView(text);
continue;
}else {
imageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (onMoreClickListener != null){
onMoreClickListener.onShowMore(isHide);
}
}
});
linearLayout.addView(text);
linearLayout.addView(imageView);
return;
}
}
}
}
if (i == data.size() - 1 && (getChildCount() >= 3 || (mParentWidth < numBar + textWidth) && getChildCount() == 2)){
ImageView imageView = getMore(true);
LayoutParams layoutParams = (LayoutParams) imageView.getLayoutParams();
int leftM = layoutParams.leftMargin;
int rightM = layoutParams.rightMargin;
imageView.measure(getMeasuredWidth(), getMeasuredHeight());
int width = imageView.getMeasuredWidth() + imageView.getPaddingLeft() + imageView.getPaddingRight();
int imageWidth = leftM + rightM + width;
imageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (onMoreClickListener != null){
onMoreClickListener.onShowMore(isHide);
}
}
});
if (mParentWidth >= numBar + textWidth + imageWidth){
linearLayout.addView(text);
linearLayout.addView(imageView);
}else {
if (mParentWidth >= numBar + textWidth){
linearLayout.addView(text);
linearLayout = getLinearLayout();
linearLayout.addView(imageView);
}else {
linearLayout = getLinearLayout();
linearLayout.addView(text);
linearLayout.addView(imageView);
}
}
return;
}
if (mParentWidth >= numBar + textWidth) {
//没有，继续添加
linearLayout.addView(text);
} else {
//否者，重新获取一个子布局，再添加
linearLayout = getLinearLayout();
linearLayout.addView(text);
}
}
}
public LinearLayout getLinearLayout() {
//创建LinearLayout布局
LinearLayout linearLayout = new LinearLayout(getContext());
//设置宽高
LayoutParams params = new LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
linearLayout.setLayoutParams(params);
//添加到主布局中
this.addView(linearLayout);
return linearLayout;
}
public ThemeTextView getText() {
//创建TextView控件
//设置字体大小，颜色，内边距
ThemeTextView themeTextView = new ThemeTextView(getContext());
themeTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX , textSize);
themeTextView.setMaxEms(7);
themeTextView.setLines(1);
themeTextView.setEllipsize(TextUtils.TruncateAt.END);
themeTextView.setPadding(dip2px(8), dip2px(4), dip2px(8), dip2px(4));
if (textColor){//可以根据自己的需求修改判断
themeTextView.setTextColor(ContextCompat.getColor(getContext(),R.color.day_text_color_thirdly));
}else {
themeTextView.setTextColor(ContextCompat.getColor(getContext(),R.color.day_text_color_thirdly));
}
if (background){
themeTextView.setBackgroundResource(R.drawable.border_search_background_day);
}
//设置宽高
LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
//外边距
params.setMargins(dip2px(8),dip2px(8),dip2px(8),dip2px(8));
themeTextView.setLayoutParams(params);
return themeTextView;
}
public ImageView getMore(boolean isHide){
ImageView imageView = new ImageView(getContext());
if (background){
imageView.setBackgroundResource(R.drawable.border_search_background_day);
}
imageView.setImageResource(R.drawable.icon_more);
if (isHide){
imageView.setRotation(180f);
}
imageView.setColorFilter(ContextCompat.getColor(getContext(),R.color.day_text_color_primary));
imageView.setPadding(dip2px(6), dip2px(6), dip2px(7), dip2px(7));
//设置宽高
LayoutParams params = new LayoutParams(ConfigSingleton.dip2px(27), ConfigSingleton.dip2px(27));
//外边距
params.setMargins(dip2px(8),dip2px(8),dip2px(8),dip2px(8));
imageView.setLayoutParams(params);
return imageView;
}
public interface OnItemTitleClickListener{
void onItemTitle(String title);
}
public interface OnMoreClickListener{
void onShowMore(boolean ishide);
}
private OnItemTitleClickListener onItemTitleClickListener;
private OnMoreClickListener onMoreClickListener;
public void setOnItemTitleClickListener(OnItemTitleClickListener onItemTitleClickListener) {
this.onItemTitleClickListener = onItemTitleClickListener;
}
public void setOnMoreClickListener(OnMoreClickListener onMoreClickListener) {
this.onMoreClickListener = onMoreClickListener;
}
public int dip2px(float dipValue) {
float scale = getContext().getResources().getDisplayMetrics().density;
return (int) (dipValue * scale + 0.5f);
}
}
attrs文件:
<declare-styleable name="SearchLayout">
<attr name="Sear_textSize" format="dimension"/>
<attr name="Sear_textColor" format="boolean"/>
<attr name="Sear_background" format="boolean"/>
</declare-styleable>