Android Visualizer -3错误
Android Visualizer -3错误
提问于 2016-09-03 08:49:54
我到处寻找解决问题的地方，但没有什么能帮上忙。正如我所看到的，一切都很好，但是可视化工具不起作用。
活性
package com.example.daber.testapplication;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.audiofx.Visualizer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
private MediaPlayer mMediaPlayer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initAudio();
}
private void initAudio() {
System.out.println("Im initializing !");
setVolumeControlStream(AudioManager.STREAM_MUSIC);
mMediaPlayer = MediaPlayer.create(this, R.raw.test);
mMediaPlayer.setLooping(true);
mMediaPlayer.start();
new Visualizer(mMediaPlayer.getAudioSessionId());
}
}流形
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.daber.testapplication">
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>文件模式
错误码
09-03 08:28:58.341 13452-13452/com.example.daber.testapplication
E/AudioEffect: set(): AudioFlinger could not create effect, status: -1
09-03 08:28:58.341 13452-13452/com.example.daber.testapplication
E/visualizers-JNI: Visualizer initCheck failed -3
09-03 08:28:58.341 13452-13452/com.example.daber.testapplication
E/Visualizer-JAVA: Error code -3 when initializing Visualizer.
09-03 08:28:58.341 13452-13452/com.example.daber.testapplication
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.daber.testapplication, PID: 13452
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.daber.testapplication/com.example.daber.testapplication.MainActivity}: java.lang.RuntimeException: Cannot initialize Visualizer engine, error: -3
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.RuntimeException: Cannot initialize Visualizer engine, error: -3
at android.media.audiofx.Visualizer.<init>(Visualizer.java:218)
at com.example.daber.testapplication.MainActivity.initAudio(MainActivity.java:25)
at com.example.daber.testapplication.MainActivity.onCreate(MainActivity.java:16)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 我也尝试使用“(0)”，但是给出了同样的错误。任何帮助都将是学徒。
回答 1
Stack Overflow用户
回答已采纳
发布于 2016-12-09 14:00:28
确保您记得向android 6+请求许可。
List<String> permissions = new ArrayList<String>();
private boolean askPermission() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
int RECORD_AUDIO = checkSelfPermission(Manifest.permission.RECORD_AUDIO );
if (RECORD_AUDIO != PackageManager.PERMISSION_GRANTED) {
permissions.add(Manifest.permission.RECORD_AUDIO);
}
if (!permissions.isEmpty()) {
requestPermissions(permissions.toArray(new String[permissions.size()]), 1);
} else
return false;
} else
return false;
return true;
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
if (requestCode == 1) {
boolean result = true;
for (int i = 0; i < permissions.length; i++) {
result = result && grantResults[i] == PackageManager.PERMISSION_GRANTED;
}
if (!result) {
Toast.makeText(this, "..", Toast.LENGTH_LONG).show();
// askPermission();
} else {
}
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/39305055
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