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DXL
424 lines
14 KiB
Java
424 lines
14 KiB
Java
package com.proxgrind.chameleon.utils.device.screen;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Rect;
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import android.graphics.RectF;
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import android.util.Log;
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import android.util.TypedValue;
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import android.view.Gravity;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.FrameLayout;
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import android.widget.LinearLayout;
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import androidx.annotation.IntDef;
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import androidx.transition.Slide;
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import com.google.android.material.tabs.TabLayout;
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import com.proxgrind.chameleon.utils.system.LogUtils;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.reflect.Field;
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import java.util.regex.Pattern;
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/**
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* 作者:东芝(2018/8/23).
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* 支持 重叠目标模式 和 放目标右上角但不重叠的模式 两种模式 通过setOverlap 设置, 默认为false=不重叠
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*/
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public class BadgeHelper extends View {
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private static final String TAG = "BadgeHelper";
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private float density;
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private Paint mTextPaint;
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private Paint mBackgroundPaint;
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private String text = "0";
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private int number;
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@Type
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private int type = Type.TYPE_POINT;
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private boolean isOverlap;
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private final RectF rect = new RectF();
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private int badgeColor = 0xFFD3321B; //默认的小红点颜色
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private int textColor = 0xFFFFFFff;
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private float textSize;
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private int w;
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private int h;
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private boolean isSetup;
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private boolean mIgnoreTargetPadding;
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private boolean isCenterVertical;
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private int leftMargin;
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private int topMargin;
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private int rightMargin;
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private int bottomMargin;
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private int gravity = -99999;
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@IntDef({Type.TYPE_POINT, Type.TYPE_TEXT})
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@Retention(RetentionPolicy.SOURCE)
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public @interface Type {
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int TYPE_POINT = 0;
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int TYPE_TEXT = 1;
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}
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public BadgeHelper(Context context) {
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super(context);
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}
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private void init(@Type int type, boolean isOverlap) {
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this.type = type;
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this.isOverlap = isOverlap;
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density = getResources().getDisplayMetrics().density;
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switch (type) {
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case Type.TYPE_POINT:
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mBackgroundPaint = new Paint();
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mBackgroundPaint.setStyle(Paint.Style.FILL);
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mBackgroundPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
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mBackgroundPaint.setColor(badgeColor);
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//计算小红点无文本情况下的小红点大小, 按屏幕像素计算, 如果你有你自己认为更好的算法, 改这里即可
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w = h = Math.round(density * 7f);
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break;
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case Type.TYPE_TEXT:
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mBackgroundPaint = new Paint();
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mBackgroundPaint.setStyle(Paint.Style.FILL);
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mBackgroundPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
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mBackgroundPaint.setColor(badgeColor);
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mTextPaint = new Paint();
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mTextPaint.setStyle(Paint.Style.FILL);
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mTextPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
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mTextPaint.setColor(textColor);//文本颜色
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if (textSize == 0) {
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mTextPaint.setTextSize(density * 10);//文本大小按屏幕像素 计算, 没写死是为了适配各种屏幕, 但如果你有你认为更合理的计算方式 你可以改这里
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} else {
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mTextPaint.setTextSize(textSize);//使用自定义大小
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}
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//计算小红点有文本情况下的小红点大小, 按文本宽高计算, 如果你有你自己认为更好的算法, 改这里即可
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float textWidth = getTextWidth(text, mTextPaint);
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float textHeight = getTextHeight(text, mTextPaint);
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w = Math.round(textWidth * 1.4f);//让背景比文本大一点
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h = Math.round(textHeight * 1.2f);
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break;
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}
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}
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/**
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* 设置Margin 可用于做偏移
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*
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* @param left
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* @param top
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* @param right
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* @param bottom
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* @return
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*/
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public BadgeHelper setBadgeMargins(int left, int top, int right, int bottom) {
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leftMargin = left;
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topMargin = top;
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rightMargin = right;
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bottomMargin = bottom;
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return this;
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}
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/**
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* 设置Gravity居中
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*
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* @return
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*/
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public BadgeHelper setBadgeCenterVertical() {
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isCenterVertical = true;
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return this;
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}
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public BadgeHelper setBadgeGravity(int gravity) {
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this.gravity = gravity;
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return this;
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}
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/**
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* 设置小红点类型
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*
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* @param type
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* @return
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*/
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public BadgeHelper setBadgeType(@Type int type) {
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this.type = type;
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return this;
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}
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/**
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* 设置小红点大小, 默认自动适配
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*
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* @param textSize
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* @return
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*/
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public BadgeHelper setBadgeTextSize(int textSize) {
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Context c = getContext();
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Resources r;
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if (c == null) {
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r = Resources.getSystem();
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} else {
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r = c.getResources();
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}
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this.textSize = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, textSize, r.getDisplayMetrics());
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return this;
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}
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/**
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* 设置小红点文字颜色, 默认白
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*
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* @param textColor
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* @return
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*/
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public BadgeHelper setBadgeTextColor(int textColor) {
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this.textColor = textColor;
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return this;
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}
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/**
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* 设置重叠模式, 默认是false(不重叠)
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*
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* @param isOverlap 是否把小红点重叠到目标View之上
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* @return
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*/
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public BadgeHelper setBadgeOverlap(boolean isOverlap) {
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return setBadgeOverlap(isOverlap, false);
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}
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/**
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* 设置重叠模式, 默认是false(不重叠)
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*
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* @param isOverlap 是否把小红点重叠到目标View之上
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* @param isIgnoreTargetPadding 是否忽略目标View的padding
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* @return
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*/
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public BadgeHelper setBadgeOverlap(boolean isOverlap, boolean isIgnoreTargetPadding) {
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this.isOverlap = isOverlap;
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this.mIgnoreTargetPadding = isIgnoreTargetPadding;
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if (!isOverlap && isIgnoreTargetPadding) {
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Log.w(TAG, "警告:只有重叠模式isOverlap=true 设置mIgnoreTargetPadding才有意义");
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}
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return this;
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}
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/**
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* 设置小红点颜色
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*
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* @param mBadgeColor
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* @return
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*/
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public BadgeHelper setBadgeColor(int mBadgeColor) {
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this.badgeColor = mBadgeColor;
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return this;
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}
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/**
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* 设置小红点大小
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*
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* @param w
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* @param h
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* @return
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*/
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public BadgeHelper setBadgeSize(int w, int h) {
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this.w = w;
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this.h = h;
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return this;
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}
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/**
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* 是否显示
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*
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* @param enable
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*/
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public void setBadgeEnable(boolean enable) {
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setVisibility(enable ? VISIBLE : INVISIBLE);
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}
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/**
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* 设置小红点的文字
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*
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* @param number
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*/
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public void setBadgeNumber(int number) {
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this.number = number;
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this.text = String.valueOf(number);
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if (isSetup) {
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if (number == 0) {
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setVisibility(INVISIBLE);
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} else {
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setVisibility(VISIBLE);
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}
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invalidate();
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}
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}
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/**
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* 设置小红点的文字
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*
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* @param text
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*/
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public void setBadgeText(CharSequence text) {
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if (isSetup) {
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if (text == null) {
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setVisibility(INVISIBLE);
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} else {
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this.text = text.toString();
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init(Type.TYPE_TEXT, isOverlap);
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setVisibility(VISIBLE);
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}
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invalidate();
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}
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}
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public void bindToTargetView(TabLayout target, int tabIndex) {
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TabLayout.Tab tab = target.getTabAt(tabIndex);
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View targetView = null;
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View tabView = null;
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try {
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Field viewField = TabLayout.Tab.class.getDeclaredField("mView");
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viewField.setAccessible(true);
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targetView = tabView = (View) viewField.get(tab);
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} catch (Exception e) {
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e.printStackTrace();
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}
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try {
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if (tabView != null) {
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Field mTextViewField = tabView.getClass().getDeclaredField("mTextView");//"mIconView"
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mTextViewField.setAccessible(true);
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targetView = (View) mTextViewField.get(tabView);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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if (targetView != null) {
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bindToTargetView(targetView);
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}
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}
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/**
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* 绑定小红点到目标View的右上角
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*
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* @param target
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*/
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public void bindToTargetView(View target) {
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init(type, isOverlap);
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if (getParent() != null) {
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((ViewGroup) getParent()).removeView(this);
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}
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if (target == null) {
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return;
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}
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if (target.getParent() instanceof ViewGroup) {
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// 先移除目标view！
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ViewGroup parent = (ViewGroup) target.getParent();
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int groupIndex = parent.indexOfChild(target);
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parent.removeView(target);
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// 根据条件放置到一个新的容器当中!
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if (isOverlap) {//[小红点与目标View重叠]模式
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FrameLayout badgeContainer = new FrameLayout(getContext());
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ViewGroup.LayoutParams targetLayoutParams = target.getLayoutParams();
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badgeContainer.setLayoutParams(targetLayoutParams);
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target.setLayoutParams(new ViewGroup.LayoutParams(
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ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
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parent.addView(badgeContainer, groupIndex, targetLayoutParams);
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badgeContainer.addView(target);
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badgeContainer.addView(this);
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FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) getLayoutParams();
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if (gravity != -99999) {
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layoutParams.gravity = gravity;
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} else {
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if (isCenterVertical) {
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layoutParams.gravity = Gravity.CENTER_VERTICAL;
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} else {
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layoutParams.gravity = Gravity.END | Gravity.TOP;
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}
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}
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if (mIgnoreTargetPadding) {
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layoutParams.rightMargin = target.getPaddingRight() - w;
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layoutParams.topMargin = target.getPaddingTop() - h / 2;
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}
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setLayoutParams(layoutParams);
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} else { //[小红点放右侧]模式
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LinearLayout badgeContainer = new LinearLayout(getContext());
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badgeContainer.setOrientation(LinearLayout.HORIZONTAL);
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ViewGroup.LayoutParams targetLayoutParams = target.getLayoutParams();
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badgeContainer.setLayoutParams(targetLayoutParams);
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target.setLayoutParams(new ViewGroup.LayoutParams(
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ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
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parent.addView(badgeContainer, groupIndex, targetLayoutParams);
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badgeContainer.addView(target);
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badgeContainer.addView(this);
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if (gravity != -99999) {
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badgeContainer.setGravity(gravity);
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} else {
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if (isCenterVertical) {
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badgeContainer.setGravity(Gravity.CENTER_VERTICAL);
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}
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}
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}
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boolean hasSetMargin = leftMargin > 0 || topMargin > 0 || rightMargin > 0 || bottomMargin > 0;
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if (hasSetMargin && getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
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ViewGroup.MarginLayoutParams p = (ViewGroup.MarginLayoutParams) getLayoutParams();
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p.setMargins(leftMargin, topMargin, rightMargin, bottomMargin);
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setLayoutParams(p);
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}
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isSetup = true;
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} else if (target.getParent() == null) {
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throw new IllegalStateException("目标View不能没有父布局!");
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}
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if (number == 0) {
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setVisibility(INVISIBLE);
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} else {
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setVisibility(VISIBLE);
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}
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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if (w > 0 && h > 0) {
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setMeasuredDimension(w, h);
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} else {
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throw new IllegalStateException("如果你自定义了小红点的宽高,就不能设置其宽高小于0 ,否则请不要设置!");
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}
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}
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@Override
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protected void onDraw(Canvas canvas) {
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// 计算文本的大小
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float textWidth = getTextWidth(text, mTextPaint);
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float textHeight = getTextHeight(text, mTextPaint);
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//这里不用解释了 很简单 就是画一个圆形和文字
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rect.left = 0;
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rect.top = 0;
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// 设置宽高!
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rect.right = getWidth();
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rect.bottom = getHeight();
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// 先绘制圆圈!!
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canvas.drawRoundRect(rect, getWidth() / 2, getWidth() / 2, mBackgroundPaint);
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if (type == Type.TYPE_TEXT) {
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float x = getWidth() / 2 - textWidth / 2;
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float y = getHeight() / 2 + textHeight / 2;
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// 根据给出的坐标值绘制图片!
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canvas.drawText(text, x, y, mTextPaint);
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}
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super.onDraw(canvas);
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}
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public boolean isInteger(String str) {
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Pattern pattern = Pattern.compile("^[-+]?[\\d]*$");
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return pattern.matcher(str).matches();
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}
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private float getTextWidth(String text, Paint p) {
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return p.measureText(text, 0, text.length());
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}
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private float getTextHeight(String text, Paint p) {
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Rect rect = new Rect();
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p.getTextBounds(text, 0, text.length(), rect);
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return rect.height();
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}
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}
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