首先奉上 Github-UIActionSheet
不想解释，就想上图
不想多说，就想秀代码
public class UIActionSheet extends AppCompatDialog {
private LinearLayout mUIActionSheetContent;
private TextView mActionSheetTitle;
private View mActionSheetTitleLine;
private UIActionSheetDismissListener mUIActionSheetDismissListener;
private void setUIActionSheetDismissListener(UIActionSheetDismissListener actionSheetDismissListener) {
mUIActionSheetDismissListener = actionSheetDismissListener;
}
public interface UIActionSheetDismissListener {
void onDismiss();
}
public interface OnOptionClickListener {
void onOptionClickListener();
}
private UIActionSheet(@NonNull Context context) {
super(context, R.style.UIActionSheetStyle);
setContentView(R.layout.ui_action_sheet_layout);
mUIActionSheetContent = findViewById(R.id.action_sheet_content);
mActionSheetTitle = findViewById(R.id.action_sheet_title);
mActionSheetTitleLine = findViewById(R.id.action_sheet_title_line);
TextView cancel = findViewById(R.id.ui_action_sheet_cancel);
if (cancel != null)
cancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
UIActionSheet.this.dismiss();
}
});
this.setCanceledOnTouchOutside(true);
this.setCancelable(true);
Window window = this.getWindow();
if (window != null) {
window.setGravity(Gravity.BOTTOM);
window.setWindowAnimations(R.style.UIActionSheetAnimation);
WindowManager.LayoutParams params = window.getAttributes();
params.width = WindowManager.LayoutParams.MATCH_PARENT;
params.height = WindowManager.LayoutParams.WRAP_CONTENT;
window.setAttributes(params);
}
}
@Override
public void dismiss() {
super.dismiss();
if (mUIActionSheetDismissListener != null) {
mUIActionSheetDismissListener.onDismiss();
}
}
public static class Builder {
private Parameter mParameter;
private Context mContext;
Builder(Context context) {
mParameter = new Parameter();
mContext = context;
}
public Builder setTitle(String title, int color) {
mParameter.mTitle = title;
mParameter.mTitleTextColor = color;
return this;
}
public Builder addOption(String option, OnOptionClickListener optionClickListener) {
mParameter.mOptions.add(new Option(option, Color.parseColor("#2376b7"), optionClickListener));
return this;
}
Builder addOption(String option, int color, OnOptionClickListener optionClickListener) {
mParameter.mOptions.add(new Option(option, color, optionClickListener));
return this;
}
UIActionSheet create() {
final UIActionSheet actionSheet = new UIActionSheet(mContext);
// 标题判断
if (mParameter.mTitle.isEmpty()) {
actionSheet.mActionSheetTitle.setVisibility(View.GONE);
actionSheet.mActionSheetTitleLine.setVisibility(View.GONE);
} else {
actionSheet.mActionSheetTitle.setText(mParameter.mTitle);
actionSheet.mActionSheetTitle.setTextColor(mParameter.mTitleTextColor);
actionSheet.mActionSheetTitle.setVisibility(View.VISIBLE);
actionSheet.mActionSheetTitleLine.setVisibility(View.VISIBLE);
}
// 选项判断
int optionSize = mParameter.mOptions.size();
if (optionSize == 0) {
actionSheet.mActionSheetTitleLine.setVisibility(View.GONE);
actionSheet.mUIActionSheetContent.setVisibility(View.GONE);
} else {
// 条目 params
LinearLayout.LayoutParams optionParams = new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
optionParams.height = dp2px(mContext);
// 分隔线 params
LinearLayout.LayoutParams dividerParams = new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, 1);
for (int i = 0; i < optionSize; i++) {
final Option option = mParameter.mOptions.get(i);
TextView textView = new TextView(mContext);
textView.setText(option.getName());
textView.setTextColor(option.getColor());
textView.setGravity(Gravity.CENTER);
textView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
actionSheet.dismiss();
if (option.getOptionClickListener() != null) {
option.getOptionClickListener().onOptionClickListener();
}
}
});
textView.setLayoutParams(optionParams);
actionSheet.mUIActionSheetContent.addView(textView);
//添加条目之间的分割线
if (i != optionSize - 1) {
View divider = new View(mContext);
divider.setBackgroundColor(Color.parseColor("#eeeeee"));
actionSheet.mUIActionSheetContent.addView(divider, dividerParams);
}
// 设置条目点击背景
if (optionSize == 1) {
if (mParameter.mTitle.isEmpty()) {
textView.setBackgroundResource(R.drawable.ui_action_sheet_cancel_shape);
} else {
textView.setBackgroundResource(R.drawable.ui_action_sheet_option_last_one);
}
} else if (i == 0) {
if (mParameter.mTitle.isEmpty()) {
textView.setBackgroundResource(R.drawable.ui_action_sheet_option_not_title_first);
} else {
textView.setBackgroundResource(R.drawable.ui_action_sheet_option_bg);
}
} else if (i < optionSize - 1) {
textView.setBackgroundResource(R.drawable.ui_action_sheet_option_bg);
} else {
textView.setBackgroundResource(R.drawable.ui_action_sheet_option_last_one);
}
}
}
actionSheet.setUIActionSheetDismissListener(mParameter.mSheetDismissListener);
return actionSheet;
}
//item的高度
private int dp2px(Context context) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
(float) 45, context.getResources().getDisplayMetrics());
}
}
}
class Parameter {
String mTitle;
int mTitleTextColor;
List<Option> mOptions;
UIActionSheet.UIActionSheetDismissListener mSheetDismissListener;
Parameter() {
mTitle = "";
mTitleTextColor = Color.BLACK;
mOptions = new ArrayList<>();
}
}
class Option {
private String mName;
private int mColor;
private UIActionSheet.OnOptionClickListener mOptionClickListener;
/**
* @param name 选项名
* @param color 选项颜色
* @param optionClickListener 选项事件
*/
Option(String name, int color, UIActionSheet.OnOptionClickListener optionClickListener) {
mName = name;
mColor = color;
mOptionClickListener = optionClickListener;
}
String getName() {
return mName;
}
int getColor() {
return mColor;
}
UIActionSheet.OnOptionClickListener getOptionClickListener() {
return mOptionClickListener;
}
}
凑合用吧... 程序员的快乐就是这个简单，枯燥且乏味。
