modify the buffer interval from 20 ms to 100 ms

update build tools version gradle version

app/build.gradle

@@ -1,12 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.0"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.0"
     defaultConfig {
         applicationId "tech.oom.idealrecorderdemo"
         minSdkVersion 16
-        targetSdkVersion 26
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -20,14 +20,15 @@ android {
 }
 
 dependencies {
-    compile fileTree(include: ['*.jar'], dir: 'libs')
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
-    compile 'com.android.support:appcompat-v7:26.+'
-    compile 'com.android.support.constraint:constraint-layout:1.0.2'
-    testCompile 'junit:junit:4.12'
-    compile 'com.yanzhenjie:permission:1.1.0'
-    compile 'com.github.Jay-Goo:WaveLineView:v1.0.3'
-    compile 'com.github.ideastudios:IdealRecorder:2.0.4'
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'junit:junit:4.12'
+    implementation 'com.yanzhenjie:permission:1.1.0'
+    implementation 'com.github.Jay-Goo:WaveLineView:v1.0.3'
+    implementation project(':library')
+//    compile 'com.github.ideastudios:IdealRecorder:2.0.4'
 }

app/src/main/java/tech/oom/idealrecorderdemo/MainActivity.java

@@ -24,6 +24,7 @@
 import jaygoo.widget.wlv.WaveLineView;
 import tech.oom.idealrecorder.IdealRecorder;
 import tech.oom.idealrecorder.StatusListener;
+import tech.oom.idealrecorder.utils.Log;
 import tech.oom.idealrecorderdemo.widget.WaveView;
 
 public class MainActivity extends AppCompatActivity {
@@ -71,12 +72,14 @@ public void onRecordData(short[] data, int length) {
             for (int i = 0; i < length; i += 60) {
                 waveView.addData(data[i]);
             }
+            Log.d("MainActivity", "current buffer size is " + length);
         }
 
         @Override
         public void onVoiceVolume(int volume) {
             double myVolume = (volume - 40) * 4;
             waveLineView.setVolume((int) myVolume);
+            Log.d("MainActivity", "current volume is " + volume);
         }
 
         @Override

build.gradle

@@ -3,13 +3,10 @@
 buildscript {
     repositories {
         jcenter()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.5.0'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -20,10 +17,7 @@ allprojects {
     repositories {
         jcenter()
         maven { url 'https://jitpack.io' }
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        google()
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Wed Dec 06 10:56:48 CST 2017
+#Wed Oct 23 14:42:54 CST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip

library/build.gradle

@@ -1,15 +1,15 @@
 apply plugin: 'com.android.library'
 apply plugin: 'com.github.dcendents.android-maven'
 
-group='com.github.ideastudios'
+group = 'com.github.ideastudios'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.0"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.0"
 
     defaultConfig {
         minSdkVersion 15
-        targetSdkVersion 26
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
 
@@ -25,10 +25,10 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
-    compile 'com.android.support:appcompat-v7:26.0.0'
-    testCompile 'junit:junit:4.12'
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    testImplementation 'junit:junit:4.12'
 }

library/src/main/java/tech/oom/idealrecorder/IdealRecorder.java

@@ -5,7 +5,6 @@
 import android.content.pm.PackageManager;
 import android.media.AudioFormat;
 import android.media.MediaRecorder;
-import android.os.Environment;
 import android.os.Handler;
 import android.support.v4.content.ContextCompat;
 import android.text.TextUtils;
@@ -56,7 +55,7 @@ public static IdealRecorder getInstance() {
      * @param mContext 当前应用的application context
      */
     public void init(Context mContext) {
-        context = mContext;
+        context = mContext.getApplicationContext();
 
     }
 
@@ -117,11 +116,16 @@ public IdealRecorder setVolumeInterval(long intervalMillis) {
      */
     public IdealRecorder setRecordFilePath(String path) {
         if (!TextUtils.isEmpty(path) && audioFileHelper != null) {
-            if (path.startsWith(Environment.getExternalStorageDirectory().getAbsolutePath()) && !isWriteExternalStoragePermissionGranted()) {
-                Log.e(TAG, "set recorder file path failed,because no WRITE_EXTERNAL_STORAGE permission was granted");
+            String externalFilePath = context.getExternalFilesDir(null).getAbsolutePath();
+            String cacheFilePath = context.getCacheDir().getAbsolutePath();
 
-                return this;
+            if (!path.startsWith(externalFilePath) || !path.startsWith(cacheFilePath)) {
+                if (!isWriteExternalStoragePermissionGranted()) {
+                    Log.e(TAG, "set recorder file path failed,because no WRITE_EXTERNAL_STORAGE permission was granted");
+                    return this;
+                }
             }
+
             isAudioFileHelperInit = true;
             audioFileHelper.setSavePath(path);
         } else {

library/src/main/java/tech/oom/idealrecorder/record/Recorder.java

@@ -9,7 +9,10 @@
 
 
 public class Recorder {
-    public static final int TIMER_INTERVAL = 20;
+    /**
+     * 每次buffer语音对应的时长为100ms
+     */
+    public static final int TIMER_INTERVAL = 100;
     private static final String TAG = "Recorder";
     private IdealRecorder.RecordConfig recordConfig;
     private AudioRecord mAudioRecorder = null;