如何在android操作系统4.2.2中打开摄像头

我在4.0上使用了很多代码，但jelly bean操作系统不支持任何代码

 try
                     {
        Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);

        startActivityForResult(cameraIntent, 1);        
                     }
                  catch(ActivityNotFoundException anfe){
                    //display an error message
    //                  String errorMessage = "Whoops - your device doesn't support capturing images!";
                     Toast toast= Toast.makeText(getApplicationContext(), "Whoops - your device doesn't support capturing images!", Toast.LENGTH_SHORT);  
                     toast.setGravity(Gravity.CENTER, 0, 0);
                     toast.show();

                }

---

我想你忘了在清单文件中添加权限我不知道操作系统，但在安卓系统中是这样的

<uses-permission android:name="android.permission.CAMERA"/>

---

我想你忘了在清单文件中添加权限我不知道操作系统，但在安卓系统中就是这样

<uses-permission android:name="android.permission.CAMERA"/>

---

在onCreate或单击按钮时添加此代码

Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
startActivityForResult(cameraIntent, CAMERA_REQUEST);



private void startActivityForResult(Intent data, int requestCode) {
    // TODO Auto-generated method stub
 if (requestCode == CAMERA_REQUEST) {  

     Bitmap photo = (Bitmap) data.getExtras().get("data"); 
     yourActivity.pictureImg.setImageBitmap(photo);
 }  

 if (requestCode == SELECT_PICTURE) {  
     Uri selectedImageUri = data.getData();
     //OI FILE Manager
     filemanagerstring = selectedImageUri.getPath();
     //MEDIA GALLERY
     selectedImagePath = getPath(selectedImageUri); 
     photo = BitmapFactory.decodeFile(selectedImagePath);
     yourActivity.pictureImg.setImageBitmap(photo);

 }  
}

---

在onCreate或单击按钮时添加此代码

Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
startActivityForResult(cameraIntent, CAMERA_REQUEST);



private void startActivityForResult(Intent data, int requestCode) {
    // TODO Auto-generated method stub
 if (requestCode == CAMERA_REQUEST) {  

     Bitmap photo = (Bitmap) data.getExtras().get("data"); 
     yourActivity.pictureImg.setImageBitmap(photo);
 }  

 if (requestCode == SELECT_PICTURE) {  
     Uri selectedImageUri = data.getData();
     //OI FILE Manager
     filemanagerstring = selectedImageUri.getPath();
     //MEDIA GALLERY
     selectedImagePath = getPath(selectedImageUri); 
     photo = BitmapFactory.decodeFile(selectedImagePath);
     yourActivity.pictureImg.setImageBitmap(photo);

 }  
}

---

thanx作为回应，我使用了你的代码仅查找崩溃消息“不幸的是，相机已关闭”。我制作了许多与相机相关的应用程序，但我的代码在jelly bean中不起作用。请重新启动你的手机并重试。我添加了相同的代码。它在所有版本上都能正常工作。我检查了来自jelly bean OS 4.2.2的相同响应，并在ICECREAM 4.0 Bologanx中运行良好作为响应，我使用您的代码只找到崩溃消息“不幸的是，相机已关闭”我制作了许多与应用程序相关的摄像头，但我的代码在jelly bean中不起作用。请重新启动手机并重试。我添加了相同的代码。它在所有版本上都运行良好。我检查了jelly bean OS 4.2.2的响应，但在ICECREAM 4.0 BRO中运行良好