当用户点击相机时，它会在几秒钟之后打开下一个屏幕，它会抛出Fail to connect to camera service
它说cannot connect to camera
这是我的代码：
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View viewLoad = LayoutInflater.from(CameraActivity.this).inflate(R.layout.camera, null);
setContentView(viewLoad);
Bundle bundle = this.getIntent().getExtras();
seletctedRetailer = bundle.getString("RetailerName");
retailerCode = bundle.getString("RetailerCode");
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
Bundle b = new Bundle();
b.putString("Activity", "RetailerOrderSActivity");
b.putString("RetailerName", seletctedRetailer);
b.putString("RetailerCode", retailerCode);
cameraIntent.putExtras(b);
getParent().getParent().setTitle("Image Capture");
startActivityForResult(cameraIntent,CAMERA_PIC_REQUEST);
vale +=1;
Button imgMCancel =(Button)findViewById(R.id.imgMCancel);
imgMCancel.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(getBaseContext(), CameraMainActivity.class);
Bundle bundle = new Bundle();
bundle.putString("Activity", "CameraMainActivity");
bundle.putString("RetailerName", seletctedRetailer);
bundle.putString("RetailerCode", retailerCode);
i.putExtras(bundle);
View vi = SalesActivityGroup.group.getLocalActivityManager().startActivity("CameraMainActivity", i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)).getDecorView();
SalesActivityGroup.group.replaceView(vi);
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == CAMERA_PIC_REQUEST) {
System.out.println("====YES======");
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ImageView image = (ImageView) findViewById(R.id.imageView1);
image.setImageBitmap(thumbnail);
}
}
这是我的布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/header"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginTop="75dp"
android:layout_width="fill_parent">
<Button android:layout_width="wrap_content"
android:text="Cancel"
android:textColor="#FFFFFF"
android:background="@drawable/btn_red"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="150dp"
android:id="@+id/imgMCancel"
>
</Button>
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/buttonClick"
android:text="Make Photo"
android:textColor="#FFFFFF"
android:background="@drawable/btn_red"
android:layout_gravity="center">
</Button>
</LinearLayout>
这是我的AndroidManifest.xml文件
<activity android:name=".sales.CameraActivity" android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden" android:clearTaskOnLaunch="false">
<intent-filter>
<action android:name="android.media.action.IMAGE_CAPTURE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
我是根据此链接http://mobile.tutsplus.com/tutorials/android/android-sdk-quick-tip-launching-the-camera/
执行此操作的请帮我解决一个问题。我的应用程序包含Tab ActivityGroup。
提前致谢..
答案 0 :(得分：21)
你忘记了清单中的某些内容，请看Camera Class
将此添加到您的清单：
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
希望它有所帮助！
答案 1 :(得分：6)
这是我的应用程序代码 - 希望它有所帮助：
public class CameraActivity extends Activity {
ImageView img_logo;
public static Bitmap bitmap;
public static String selectedImagePath="";
protected boolean _taken;
protected static final String PHOTO_TAKEN = "photo_taken";
int count = 0;
static String image1 = "";
/*static String _path="";
Bitmap bita;
ParsingForCabDetails obj_ParsingForCabDetails;
InputStream is;
protected boolean _taken;
protected static final String PHOTO_TAKEN = "photo_taken";*/
ProgressDialog pd;
//ImageView iv;
Button cancel,Ok;
String alert="";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.camera);
img_logo = (ImageView) findViewById(R.id.camera_image);
cancel = (Button) findViewById(R.id.camera_taken);
upload = (Button) findViewById(R.id.camerabtnupload);
if(image1.length()<= 0)
startCameraActivity();
upload.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
finish();
if(image1.length() > 0){
pd = ProgressDialog.show(SmallyTaxiTabbar.tabContext, "", "Loading....");
new Thread(new Runnable() {
public void run() {
LoardServer();
handler.sendEmptyMessage(0);
}
}).start();
}
else
Toast.makeText(getApplicationContext(),"No Capture Image",2000).show();
}
});
img_logo.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
startCameraActivity();
}
});
cancel.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
finish();
selectedImagePath= "";
image1="";
}
});
}
public void LoardServer() {
// this is use for upload image or save image
}
private Handler handler = new Handler(){
public void handleMessage(android.os.Message msg) {
pd.dismiss();
finish();
if(alert.length() >0 ){
Log.d("hello","alert"+alert);
Toast.makeText(getApplicationContext(),alert, 2000).show();
}
else
FindCabDetails.iv_camera.setImageBitmap(bitmap);
selectedImagePath= "";
image1="";
};
};
protected void startCameraActivity() {
selectedImagePath = Environment.getExternalStorageDirectory() + "/default"+count+".jpg";
count++;
File file = new File(selectedImagePath);
Uri outputFileUri = Uri.fromFile(file);
Intent intent = new Intent (android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(intent, 0);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (resultCode) {
case -1:
onPhotoTaken();
break;
}
}
protected void onPhotoTaken() {
_taken = true;
bitmap = BitmapFactory.decodeFile(selectedImagePath);
bitmap = decodeFile();
image1 = selectedImagePath;
img_logo.setImageBitmap(bitmap);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
if (savedInstanceState.getBoolean(PHOTO_TAKEN)) {
onPhotoTaken();
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putBoolean(PHOTO_TAKEN, _taken);
}
private Bitmap decodeFile() {
try {
// decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream( selectedImagePath), null, o);
final int REQUIRED_SIZE = 70;
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp / 2 < REQUIRED_SIZE
|| height_tmp / 2 < REQUIRED_SIZE)
break;
width_tmp /= 2;
height_tmp /= 2;
scale++;
}
// decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeStream(new FileInputStream(selectedImagePath), null, o2);
} catch (FileNotFoundException e) {
}
return null;
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode==KeyEvent.KEYCODE_BACK)
{
finish();
}
return super.onKeyDown(keyCode, event);
}
}
使用此camera.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:background="#FFFFFF" android:layout_height="fill_parent" android:layout_width="fill_parent">
<RelativeLayout android:id="@+id/relativeLayout1"
android:layout_width="fill_parent"
android:background="@drawable/bottoombg" android:layout_height="wrap_content">
<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true"
android:layout_centerHorizontal="true" android:textColor="#FBB917"
android:textStyle="bold" android:textSize="20dip" android:id="@+id/txtCabNametitle" android:text="Camera"></TextView>
<Button android:layout_alignParentRight="true" android:layout_centerVertical="true"
android:background="@drawable/filter_btn1"
android:layout_marginRight="5dip"
android:layout_height="30dip" android:textColor="#FFFFFF" android:text="Upload" android:layout_width="70dip" android:id="@+id/camerabtnupload"></Button>
<Button android:layout_centerVertical="true" android:background="@drawable/btn_press_effect" android:layout_height="30dip" android:textColor="#FFFFFF" android:paddingLeft="10dip" android:id="@+id/camera_taken" android:text="Cancel" android:layout_width="70dip"></Button>
</RelativeLayout>
<ImageView android:id="@+id/camera_image" android:layout_centerVertical="true" android:layout_centerHorizontal="true" android:layout_height="200dip" android:layout_width="200dip"></ImageView>
</RelativeLayout>
的AndroidManifest.xml
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
答案 2 :(得分：6)
在关闭应用程序之前，您必须先解锁相机才能获得预览并正确锁定相机。如果相机未正确锁定，下次您的应用可能会抛出异常。所以，你必须重启你的设备......