| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * 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 |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.example.android.hapticassessment |
| |
| import android.graphics.Color |
| import android.os.Bundle |
| import android.os.VibrationEffect |
| import android.os.VibrationEffect.EFFECT_CLICK |
| import android.os.Vibrator |
| import android.view.View |
| import android.widget.Button |
| |
| import androidx.appcompat.app.AppCompatActivity |
| |
| /** App main screen. */ |
| class MainActivity : AppCompatActivity() { |
| |
| companion object { |
| |
| private const val ONE_SHOT_TIMING = 20L |
| private const val ONE_SHOT_AMPLITUDE = 255 |
| |
| private val WAVEFORM_TIMINGS = longArrayOf(500, 500) |
| private val WAVEFORM_AMPLITUDES = intArrayOf(128, 255) |
| } |
| |
| override fun onCreate(savedInstanceState: Bundle?) { |
| super.onCreate(savedInstanceState) |
| setContentView(R.layout.activity_main) |
| |
| val vibrator = getSystemService(Vibrator::class.java) |
| |
| findViewById<Button>(R.id.click_effect_button).setOnClickListener { |
| vibrator.vibrate(VibrationEffect.createPredefined(EFFECT_CLICK)) |
| } |
| |
| findViewById<Button>(R.id.oneshot_effect_button).setOnClickListener { |
| vibrator.vibrate(VibrationEffect.createOneShot(ONE_SHOT_TIMING, ONE_SHOT_AMPLITUDE)) |
| } |
| |
| findViewById<Button>(R.id.waveform_effect_button).setOnClickListener { view: View -> |
| vibrator.vibrate( |
| VibrationEffect.createWaveform(WAVEFORM_TIMINGS, WAVEFORM_AMPLITUDES, -1)) |
| |
| val button = view as Button |
| if (vibrator.hasAmplitudeControl()) { |
| button.text = getString(R.string.button_3_pass) |
| button.setBackgroundColor(Color.GREEN) |
| button.setTextColor(Color.BLACK) |
| } else { |
| button.text = getString(R.string.button_3_fail) |
| button.setBackgroundColor(Color.RED) |
| button.setTextColor(Color.WHITE) |
| } |
| } |
| } |
| } |