吉林省舒兰市建设银行网站,陈村网站开发,用WordPress做网站入门课,wordpress 媒体库 不显示Android 使用 ToneGenerator 实现按键提示音 外部链接简单效果功能简单实现工具类线程池工具主页面简单实现 外部链接
DTMF原理 处理音频输出的变化 ToneGenerator API
简单效果
功能简单实现
工具类
package com.xg.practise.utilimport android.app.Activity
import and… Android 使用 ToneGenerator 实现按键提示音 外部链接简单效果功能简单实现工具类线程池工具主页面简单实现 外部链接
DTMF原理 处理音频输出的变化 ToneGenerator API
简单效果
功能简单实现
工具类
package com.xg.practise.utilimport android.app.Activity
import android.content.Context
import android.media.AudioManager
import android.media.ToneGenerator
import android.provider.Settings//Tone 相关
const val DTMF_DURATION_MS 120 // 声音的播放时间,毫秒class ToneHelper() {// 监视器对象锁private val mToneGeneratorLock Any()// 声音产生器private var mToneGenerator: ToneGenerator? null// 系统参数“按键操作音”标志位private var mDTMFToneEnabled falsefun initToneGenerator(context: Context) {runOnBackgroundThread(Runnable {//按键声音播放设置及初始化try {// 获取系统参数“按键操作音”是否开启mDTMFToneEnabled Settings.System.getInt(context.contentResolver,Settings.System.DTMF_TONE_WHEN_DIALING, 1) 1synchronized(mToneGeneratorLock) {if (mDTMFToneEnabled mToneGenerator null) {mToneGenerator ToneGenerator(AudioManager.STREAM_DTMF, 100) // 设置声音的大小if (context is Activity) {context.volumeControlStream AudioManager.STREAM_DTMF}}}} catch (e: Exception) {e.printStackTrace()mDTMFToneEnabled falsemToneGenerator null}})}fun playTone(context: Context, dtmf: Int) {if (dtmf 0) {return}if (!mDTMFToneEnabled) {return}val audioManager context.applicationContext.getSystemService(Context.AUDIO_SERVICE) as AudioManagerval ringerMode audioManager.ringerModeif ((ringerMode AudioManager.RINGER_MODE_SILENT|| ringerMode AudioManager.RINGER_MODE_VIBRATE)) {// 静音或者震动时不发出声音return}synchronized(mToneGeneratorLock) {mToneGenerator?.startTone(dtmf, DTMF_DURATION_MS) //发出声音}}fun release() {try {mDTMFToneEnabled falsemToneGenerator?.stopTone()mToneGenerator?.release()mToneGenerator null} catch (e: Exception) {e.printStackTrace()}}
}线程池工具
package com.xg.practise.utilimport java.util.concurrent.Executors
import java.util.concurrent.ScheduledExecutorService
import java.util.concurrent.TimeUnitval executor: ScheduledExecutorService Executors.newScheduledThreadPool(10)fun runOnBackgroundThread(runnable: Runnable?) {executor.execute(runnable)
}fun runOnBackgroundThread(runnable: Runnable?, delay: Long) {executor.schedule(runnable, delay, TimeUnit.MILLISECONDS)
}主页面简单实现
package com.xg.practiseimport android.media.ToneGenerator
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import androidx.databinding.DataBindingUtil
import androidx.recyclerview.widget.GridLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.xg.practise.databinding.ActivityToneBinding
import com.xg.practise.util.ToneHelperclass ToneActivity : AppCompatActivity() {private var mToneHelper: ToneHelper? nulloverride fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)var dataBinding DataBindingUtil.setContentViewActivityToneBinding(this, R.layout.activity_tone);setContentView(dataBinding.root)mToneHelper ToneHelper()mToneHelper?.initToneGenerator(thisToneActivity)var array arrayOf(1, 2, 3, 4, 5, 6, 7, 8, 9, *, 0, #)dataBinding.recycler.layoutManager GridLayoutManager(thisToneActivity, 3)dataBinding.recycler.adapter object : RecyclerView.AdapterMyViewHolder() {override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {return MyViewHolder(LayoutInflater.from(parent.context).inflate(android.R.layout.simple_list_item_1, parent, false))}override fun getItemCount(): Int {return array.size}override fun onBindViewHolder(holder: MyViewHolder, position: Int) {holder.text.text array[position]holder.text.setOnClickListener {mToneHelper?.playTone(holder.text.context,convertToneDtmf(array[position]))}}}}fun convertToneDtmf(key: String?): Int {return when (key) {0 - ToneGenerator.TONE_DTMF_01 - ToneGenerator.TONE_DTMF_12 - ToneGenerator.TONE_DTMF_23 - ToneGenerator.TONE_DTMF_34 - ToneGenerator.TONE_DTMF_45 - ToneGenerator.TONE_DTMF_56 - ToneGenerator.TONE_DTMF_67 - ToneGenerator.TONE_DTMF_78 - ToneGenerator.TONE_DTMF_89 - ToneGenerator.TONE_DTMF_9* - ToneGenerator.TONE_DTMF_S# - ToneGenerator.TONE_DTMF_Pelse - -1}}override fun onDestroy() {super.onDestroy()mToneHelper?.release()}class MyViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {val text: TextView itemView.findViewById(android.R.id.text1)}
}
