我以这种方式尝试实现摄像机权限：
@H_301_2@private void checkCameraPermissions() {
if(checkCameraHardware(this)) {
if (checkSelfPermission(Manifest.permission_group.camera)
!= PackageManager.PERMISSION_GRANTED) {
Crashlytics.log("Requesting camera permission");
// Should we show an explanation?
if (shouldShowRequestPermissionRationale(
Manifest.permission_group.camera)) {
// Explain to the user why we need to use the camera
showRationaleForCameraUse();
}
requestPermissions(new String[]{Manifest.permission_group.camera},Constants.MY_PERMISSIONS_REQUEST_CAMERA_GROUP);
// MY_PERMISSIONS_REQUEST_CAMERA_GROUP is an
// app-defined int constant
} else {
startApp();
}
}else{
showNoCameraAvailableAlert();
}
}
@Override
public void onRequestPermissionsResult(int requestCode,String permissions[],int[] grantResults) {
switch (requestCode) {
case Constants.MY_PERMISSIONS_REQUEST_CAMERA_GROUP: {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted,yay!
// start the app
startApp();
} else {
// permission denied,boo!
// leav the app!
showNoCameraAvailableAlert();
}
return;
}
// other 'switch' lines to check for other
// permissions this app might request
}
}
并得到以下错误：
@H_301_2@java.lang.NoSuchMethodError: No virtual method checkSelfPermission(Ljava/lang/String;)I in class Lim/emu/app/emu/app/view/splash/SplashActivity; or its super classes (declaration of 'im.emu.app.emu.app.view.splash.SplashActivity' appears in /data/app/im.emu.app.emu.test-1/base.apk) at im.emu.app.emu.app.view.splash.SplashActivity.checkCameraPermissions(SplashActivity.java:74) at im.emu.app.emu.app.view.splash.SplashActivity.onCreate(SplashActivity.java:52) at android.app.Activity.performCreate(Activity.java:5977) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2258) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2367) at android.app.ActivityThread.access$800(ActivityThread.java:148) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1283) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5274) 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:909) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:704) 08-30 16:34:10.801 17087-17357/im.emu.app.emu.test I/Fabric﹕ Crashlytics report upload complete: 55E30629033A-0001-42BF-296ED8AC703A.cls任何想法如何解决这个问题？
附：如果需要更多的信息请问
解决方法
您应该运行运行先前版本的设备上的代码.你必须使用ContextCompat.checkSelfPermission().
