自定义波形图View，LayoutInflater动态加载控件保存为本地图片

效果图：
在这里插入图片描述

页面布局：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="@dimen/dp_145"xmlns:app="http://schemas.android.com/apk/res-auto"android:background="@color/white"><TextViewandroid:id="@+id/tv_index"android:layout_width="@dimen/dp_30"android:layout_height="match_parent"android:layout_gravity="center"android:background="@color/common_btn_clicked"android:gravity="center"android:textColor="@color/white"android:textSize="@dimen/sp_14"tools:text="TH"/><RelativeLayoutandroid:id="@+id/rl_wave_view"android:layout_width="match_parent"android:layout_height="match_parent"android:background="@color/white"><com.kl.common_base.view.wave.GridViewandroid:layout_width="match_parent"android:layout_height="match_parent"app:bgColor="#f0d3a9"/><com.kl.common_base.view.wave.PdfEcgWaveViewandroid:id="@+id/wave_view"android:layout_width="match_parent"android:layout_height="match_parent"android:visibility="visible" /><TextViewandroid:id="@+id/tv_file_create_date"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginStart="@dimen/dp_20"android:layout_marginTop="@dimen/dp_10"android:text=""android:textColor="@color/colorPrimary"android:textSize="@dimen/sp_12"tools:text="2019年6月26日11:54" /></RelativeLayout>
</LinearLayout>

自定义波形图控件：

package com.kl.common_base.view.wave;import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;import com.kl.common_base.R;
import com.kl.common_base.utils.SizeUtils;import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;public class PdfEcgWaveView extends View {private List<Short> pointList = Collections.synchronizedList(new LinkedList<>());private Paint mPaint;private Paint mPaintLine;private int mWidth = 0;private int mHeight = 0;private int mCenterY = 0;public float points[];List<Short> nativeDatas = null;private int len = 0;private int index = 0;private int zoom;private float gapX