我開發了具有被設置爲自動模式下的閃光燈選項的Android應用程序,但它崩潰的camera.open.I已經使用意圖打開相機相機應用程序崩潰的camera.open
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
int result = context.checkCallingOrSelfPermission(Manifest.permission.CAMERA);
int result2 = context.checkCallingOrSelfPermission(Manifest.permission.FLASHLIGHT);
if((result==PackageManager.PERMISSION_GRANTED) && (result2==PackageManager.PERMISSION_GRANTED)) {
cam = Camera.open();
Camera.Parameters p = cam.getParameters();
p.setFlashMode(Camera.Parameters.FLASH_MODE_ON);
cam.setParameters(p);
cam.startPreview();
}
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(cameraIntent,CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}});
這裏是logcat的
04-10 15:44:58.928 13248-13248/com.t4u.aapam E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.t4u.aapam, PID: 13248
java.lang.RuntimeException: Fail to connect to camera service
at android.hardware.Camera.<init>(Camera.java:529)
at android.hardware.Camera.open(Camera.java:379)
at com.t4u.aapam.ListViewDisplay$1.onItemClick(ListViewDisplay.java:402)
at android.widget.AdapterView.performItemClick(AdapterView.java:305)
at android.widget.AbsListView.performItemClick(AbsListView.java:1148)
at android.widget.AbsListView$PerformClick.run(AbsListView.java:3059)
at android.widget.AbsListView$3.run(AbsListView.java:3866)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
這裏是我的清單file.i增加了相機的權限和手電筒permisssion.I還增加了攝像頭硬件permisssion
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.t4u.aapam">
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="com.telematics4u.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.FLASHLIGHT" />
<uses-feature android:name="android.hardware.camera" android:required="false" />
<uses-feature android:name="android.hardware.camera.flash"
android:required="false" />
<application
android:name="com.t4u.aapam.App"
android:allowBackup="true"
android:icon="@drawable/launcher_logo"
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>
你正在某種模擬器或真實設備上測試應用程序? –
有很多類似的問題,搜索'java.lang.RuntimeException:無法連接到谷歌攝像頭服務',你會得到很多解決方案。像這些http://stackoverflow.com/questions/23904459/android-java-lang-runtimeexception-fail-to-connect-to-camera-service,http://stackoverflow.com/questions/26305107/how-to修復失敗連接到相機服務異常在Android模擬器 –
我已經在真實設備上測試 – shivadeep