feat(music play)

EdisonE3 · Dec 10, 2022 · e9817bc · e9817bc
1 parent eb1d5a1
commit e9817bc
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Showing 5 changed files with 30 additions and 32 deletions.
diff --git a/app/src/main/java/com/wireless/spyapp/MainActivity.kt b/app/src/main/java/com/wireless/spyapp/MainActivity.kt
@@ -172,9 +172,9 @@ class MainActivity : AppCompatActivity() {
             Log.d(TAG, "-----------------------------------------")
             for (it in mAccelerometerValues!!){
                 val data = it.x.toString() + "," + it.y.toString() + "," + it.z.toString()
-                Log.d("path", applicationContext.filesDir.toString())
+//                Log.d("path", applicationContext.filesDir.toString())
                 fileManager?.writeTxtToFile(data, applicationContext.filesDir.toString(), "accelerometer.txt")
-                Log.d(TAG, it.id.toString() + " accelerometer: [x:" + it.x + ", y:" + it.y + ", z:" + it.z + "]")
+//                Log.d(TAG, it.id.toString() + " accelerometer: [x:" + it.x + ", y:" + it.y + ", z:" + it.z + "]")
 
             }
             mAccelerometerValues?.clear()

diff --git a/app/src/main/java/com/wireless/spyapp/MusicActivity.kt b/app/src/main/java/com/wireless/spyapp/MusicActivity.kt
@@ -15,7 +15,8 @@ class MusicActivity : AppCompatActivity(), View.OnClickListener {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_music)
-        musicManager = MusicManager()
+        musicManager = MusicManager(this, R.raw.test)
+
         val btnPlay: Button = findViewById<View>(R.id.btnPlay) as Button
         val btnPause: Button = findViewById<View>(R.id.btnPause) as Button
         val btnStop: Button = findViewById<View>(R.id.btnStop) as Button
@@ -30,14 +31,16 @@ class MusicActivity : AppCompatActivity(), View.OnClickListener {
         when (v!!.id) {
             R.id.btnPlay -> {
                 Log.d("MusicActivity", "play")
+                musicManager?.setStart()
                 //如果没在播放中，立刻开始播放。
                 if (!mediaPlayer.isPlaying()) {
                     mediaPlayer.start()
                 }
             }
             R.id.btnPause -> {
                 //如果在播放中，立刻暂停。
-                Log.d("MusicActivity", "pause")
+                Log.d("MusicActivity", "pause11")
+                musicManager?.setPause()
                 if (mediaPlayer.isPlaying()) {
                     mediaPlayer.pause()
                 }
@@ -47,7 +50,7 @@ class MusicActivity : AppCompatActivity(), View.OnClickListener {
                 Log.d("MusicActivity", "stop")
                 if (mediaPlayer.isPlaying()) {
                     mediaPlayer.reset()
-                    musicManager?.initMediaPlayer() //初始化播放器 MediaPlayer
+                    musicManager?.initMediaPlayer(this, R.raw.test) //初始化播放器 MediaPlayer
                 }
             }
             else -> {}

diff --git a/app/src/main/java/com/wireless/spyapp/util/MusicManager.kt b/app/src/main/java/com/wireless/spyapp/util/MusicManager.kt
@@ -1,33 +1,28 @@
 package com.wireless.spyapp.util
 
 import android.content.Context
-import android.media.AudioManager
 import android.media.MediaPlayer
-import android.os.Environment
-import java.io.File
-import java.io.IOException
 
 
-class MusicManager {
-    // this class is used to play and pause music
-    // It can be used to play music in the background
-    // the music can be load from sdcard
-    var mediaPlayer: MediaPlayer? = null
+class MusicManager// construction method with two parameter
+    (context: Context, resId: Int) {
+    var mediaPlayer :MediaPlayer? = null
+    private var isPause = false //是否暂停
 
-    // construct function
     init {
-        this.mediaPlayer = MediaPlayer()
-        initMediaPlayer()
+        initMediaPlayer(context, resId)
     }
 
-    fun initMediaPlayer() {
-        try {
-            val filePath = ""
-            mediaPlayer?.setDataSource(filePath)
-            mediaPlayer!!.isLooping = true //设置为循环播放
-            mediaPlayer!!.prepare() //初始化播放器MediaPlayer
-        } catch (e: Exception) {
-            e.printStackTrace()
-        }
+    fun initMediaPlayer(context: Context, resId: Int) {
+        mediaPlayer = MediaPlayer.create(context, resId)
+        mediaPlayer?.setLooping(true)
+    }
+
+    fun setPause() {
+        isPause = true
+    }
+
+    fun setStart() {
+        isPause = false
     }
 }
diff --git a/app/src/main/res/layout/activity_music.xml b/app/src/main/res/layout/activity_music.xml
@@ -5,31 +5,31 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         tools:context=".MusicActivity">
-    <LinearLayout android:layout_width="412dp" android:layout_height="439dp"
-                  android:orientation="vertical" tools:ignore="MissingConstraints">
+    <LinearLayout android:layout_width="408dp" android:layout_height="823dp"
+                  android:orientation="vertical" tools:ignore="MissingConstraints" tools:layout_editor_absoluteX="0dp">
         <Button
                 android:id="@+id/btnPlay"
-                android:layout_width="match_parent"
+                android:layout_width="366dp"
                 android:layout_height="107dp"
                 android:textAllCaps="false"
                 android:text="@string/play"
                 tools:ignore="MissingConstraints"
         />
         <Button
                 android:id="@+id/btnStop"
-                android:layout_width="129dp"
+                android:layout_width="348dp"
                 android:layout_height="102dp"
                 android:textAllCaps="false"
                 android:text="@string/stop"
                 tools:ignore="MissingConstraints"
-        />
+                android:layout_marginVertical="100dp"/>
         <Button
                 android:id="@+id/btnPause"
                 android:layout_width="337dp"
                 android:layout_height="86dp"
                 android:textAllCaps="false"
                 android:text="@string/pause"
                 tools:ignore="MissingConstraints"
-        />
+                android:layout_marginHorizontal="0dp" android:layout_marginVertical="60dp"/>
     </LinearLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/raw/test.wav b/app/src/main/res/raw/test.wav