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@IBAction func cleanResult(_ sender: Any) {
    if !resultLabel.isHidden {
        resultLabel.isHidden = true
        resultLabel.text = ""
    }
}

kimipeng

import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;
import org.apache.commons.lang3.StringUtils;

import java.util.ArrayList;
import java.util.List;

public class GsonUtils {

kimipeng

 /**
     * 移动
     * @return
     */
    public Animation getTranslateAnimation() {
        //实例化TranslateAnimation
        //以自身为坐标系和长度单位，从(0,0)移动到(1,1)
        TranslateAnimation animation = new TranslateAnimation(
                Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,
                1.0f, Animation.RELATIVE_TO_SELF, 0.0f,

kimipeng

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.BitmapDrawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.ScaleGestureDetector;
import android.view.View;

public class MyImageView extends View {

kimipeng

/*******************************************************************************
 * Copyright 2011, 2012 Chris Banes. 2013 readyState Software Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

kimipeng

package com.webileapps.myrtprofile;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.Button;

/**
 * 

kimipeng

/**
 * QuadEncoder.cpp - Library for reading moves from a quadrature rotary encoder
 * Created by Pedro Rodrigues (medecau@gmail.com) 9, January of 2010
 * Released into the public domain.
 */

#include "Arduino.h"
#include "QuadEncoder.h"

QuadEncoder::QuadEncoder(int pin1, int pin2)

kimipeng

/* Method-1: Get size of screen in Activity */
public void getScreenSizeinActivity(){
  Display display = getWindowManager().getDefaultDisplay(); //Activity#getWindowManager()
  Point size = new Point();
  display.getSize(size);
  int width = size.x;
  int height = size.y;
}

/* Method-2: Get size of screen in other class */

kimipeng

// Some existing RelativeLayout from your layout xml
RelativeLayout rl = (RelativeLayout) findViewById(R.id.my_relative_layout);

ImageView iv = new ImageView(this);

RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(30, 40);
params.leftMargin = 50;
params.topMargin = 60;
rl.addView(iv, params);