Android Vibrator Usage

package com.example.vibrationdemo;

import android.annotation.SuppressLint;
import android.app.Service;
import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.os.VibrationAttributes;
import android.os.VibrationEffect;
import android.os.Vibrator;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import com.example.vibrationdemo.R;

/**
 *
 */
public class MainActivity extends AppCompatActivity {

    private Button btn_hasVibrator;
    private Button btn_short;
    private Button btn_long;
    private Button btn_rhythm;
    private Button btn_cancle;
    private Vibrator myVibrator;
    private Context mContext;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //获得系统的Vibrator实例:
        myVibrator = (Vibrator) getSystemService(Service.VIBRATOR_SERVICE);
        mContext = MainActivity.this;

        bindViews();
    }

    private void bindViews() {
        btn_hasVibrator = (Button) findViewById(R.id.btn_hasVibrator);
        btn_short = (Button) findViewById(R.id.btn_short);
        btn_long = (Button) findViewById(R.id.btn_long);
        btn_rhythm = (Button) findViewById(R.id.btn_rhythm);
        btn_cancle = (Button) findViewById(R.id.btn_cancle);

        btn_hasVibrator.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(mContext, myVibrator.hasVibrator() ? "当前设备有振动器" : "当前设备无振动器",
                        Toast.LENGTH_SHORT).show();
            }
        });

        btn_short.setOnClickListener(new View.OnClickListener() {
            @RequiresApi(api = Build.VERSION_CODES.Q)
            @Override
            public void onClick(View v) {
                myVibrator.cancel();
//                myVibrator.vibrate(new long[]{100, 200, 100, 200}, 0);
//                myVibrator.vibrate(VibrationEffect.createWaveform(new long[]{100, 200, 100, 200}, 0)); // repeatedly
                myVibrator.vibrate(VibrationEffect.createWaveform(new long[]{100, 200, 100, 200}, -1)); // only once

//                myVibrator.vibrate(VibrationEffect.createOneShot(150, VibrationEffect.DEFAULT_AMPLITUDE));
//                myVibrator.vibrate(VibrationEffect.createOneShot(10, VibrationEffect.EFFECT_CLICK));
//                myVibrator.vibrate(VibrationEffect.createOneShot(10, VibrationEffect.EFFECT_DOUBLE_CLICK));
//                myVibrator.vibrate(VibrationEffect.createOneShot(10, VibrationEffect.EFFECT_HEAVY_CLICK));
//                myVibrator.vibrate(VibrationEffect.createOneShot(10, VibrationEffect.EFFECT_TICK));

                Toast.makeText(mContext, "短振动", Toast.LENGTH_SHORT).show();
            }
        });
        btn_long.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myVibrator.cancel();
//                myVibrator.vibrate(new long[]{100, 100, 100, 1000}, 0);
                myVibrator.vibrate(VibrationEffect.createWaveform(new long[]{100, 100, 100, 1000}, 0));
                Toast.makeText(mContext, "长振动", Toast.LENGTH_SHORT).show();
            }
        });
        btn_rhythm.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myVibrator.cancel();
//                myVibrator.vibrate(new long[]{500, 100, 500, 100, 500, 100}, 0);
                myVibrator.vibrate(VibrationEffect.createWaveform(new long[]{500, 100, 500, 100, 500, 100}, 0));
                Toast.makeText(mContext, "节奏振动", Toast.LENGTH_SHORT).show();
            }
        });
        btn_cancle.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myVibrator.cancel();
                Toast.makeText(mContext, "取消振动", Toast.LENGTH_SHORT).show();
            }
        });
    }
}