【Android技术】文本转语音

Android 文本转语音开发

提示:本系列文章处于动态更新当中; 由于本人是通过网络渠道自学的Android, 一些原理的解释和代码仅代表我个人观点.



1、原生案例.

不需要xml文件, 代码直接复制到Activity中就行了.

package com.example.excute

import android.os.Bundle
import android.speech.tts.TextToSpeech
import android.view.Gravity
import android.view.View
import android.widget.LinearLayout
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.widget.AppCompatButton
import androidx.appcompat.widget.AppCompatEditText
import java.util.Locale


class 优快云Activity : AppCompatActivity(), TextToSpeech.OnInitListener {
    private lateinit var tts: TextToSpeech
    private lateinit var ll: LinearLayout
    private lateinit var editText: AppCompatEditText
    private lateinit var speakButton: AppCompatButton

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        this.ll = LinearLayout(this).also {
            this.setContentView(it)
            it.orientation = LinearLayout.VERTICAL

            var param: LinearLayout.LayoutParams = LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                0,
                1.0F
            )
            for (i in 0 until 7) {
                if (i == 2) {
                    this.editText = AppCompatEditText(this).apply {
                        layoutParams = param
                        gravity = Gravity.CENTER
                        hint = "Enter your sentence"
                    }
                    it.addView(this.editText)
                }
                else if (i == 4) {
                    this.speakButton = AppCompatButton(this).apply {
                        layoutParams = param
                        gravity = Gravity.CENTER
                        text = "SPEAK"
                    }
                    it.addView(this.speakButton)
                }
                else {
                    val view: View = View(this).apply {
                        layoutParams = param
                    }
                    it.addView(view)
                }
            }
        }

        this.tts = TextToSpeech(this, this)

        this.speakButton.setOnClickListener {
            val text = this.editText.text.toString().trim()
            if (text.isNotEmpty()) {
                this.speakText(text)
            } else {
                Toast.makeText(this, "Please enter text to speak", Toast.LENGTH_SHORT).show()
            }
        }
    }
    private fun speakText(text: String): Unit {
        this.tts.speak(text, TextToSpeech.QUEUE_FLUSH, null, "")
    }

    override fun onInit(status: Int) {
        if (status == TextToSpeech.SUCCESS) {
            val result = this.tts.setLanguage(Locale.CHINA)
            if (result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED) {
                Toast.makeText(this, "Language not supported", Toast.LENGTH_SHORT).show()
            }
        }
    }

    override fun onDestroy() {

        if (this.tts.isSpeaking) {
            this.tts.stop()
        }
        this.tts.shutdown()
        super.onDestroy()

    }
}


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