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Я все еще нахожусь на пути к реализации нескольких функций камеры1, и теперь я столкнулся с проблемой, связанной с ZOOM, и это связано с этим, хотя я включил zoomControls в макет и создал clickClisteners, независимо от того, программы, кнопка zoomControl просто не реагирует вообще. Я пробовал все методы, показанные в смежных темах здесь, в SO, но ни один из них не работал для меня.Проблемы с камерой CameraControls/Camera Zoom/SurfaceView - в чем причина?
Как это мой первый проект, могли бы вы исправить мой код, чтобы быть честным Android документация путь к общему
Прикрепление моего кода выше, я бы очень благодарен за направления
package com.example.arturs.camerahowitworks;
import android.app.Activity;
import android.hardware.Camera;
import android.os.Bundle;
import android.util.Log;
import android.widget.FrameLayout;
import android.widget.ZoomControls;
public class MainActivity extends Activity
{
private Camera mcamera;
private CameraPreview Preview;
private static final String TAG = " => Main Activity: ";
private ZoomControls zoomControls;
//private FrameLayout pCameraLayout = null;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//enableZoom();
FrameLayout preview = (FrameLayout) findViewById(R.id.camera_preview);
mcamera = openFrontCamera();
Preview = new CameraPreview(this, mcamera);
preview.addView(Preview);
//ZoomControls zoomControls = (ZoomControls)
findViewById(R.id.zoomControls);
}
@Override
protected void onResume()
{
super.onResume();
Log.d(TAG, " -> onResume");
try
{
}
catch (Exception e)
{
e.printStackTrace();
// finish();
}
Log.d(TAG, " -> onResume");
}
@Override
protected void onPause()
{
Log.d(TAG, " -> onPause");
mcamera.release();
mcamera = null;
super.onPause();
Log.d(TAG, " <- onPause");
}
@Override
protected void onStop()
{
Log.d(TAG, " -> onStop");
finish();
super.onStop();
Log.d(TAG, " <- onStop");
}
public Camera openFrontCamera()
{
int cameraCount = 0;
Camera cam;
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
cameraCount = Camera.getNumberOfCameras();
for (int camID = 0; camID < cameraCount; camID++)
{
Camera.getCameraInfo(camID, cameraInfo);
Log.d(TAG, "CameraInfo" + cameraInfo.facing);
if(cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_BACK)
{
try
{
//return cam = Camera.open(camID);
return Camera.open(camID);
}
catch (RuntimeException e)
{
Log.e(TAG, "Camera failed to open" + e.getLocalizedMessage());
}
}
}
return null;
}
}
CameraPreview класс
package com.example.arturs.camerahowitworks;
import android.content.Context;
import android.hardware.Camera;
import android.util.Log;
import android.view.Display;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.WindowManager;
import android.widget.ZoomControls;
import java.io.IOException;
import java.util.List;
public class CameraPreview extends SurfaceView implements
SurfaceHolder.Callback
{
private static final String TAG = " => Main Activity: ";
private SurfaceHolder holder;
private Camera mcamera;
private Context mContext;
int currentZoomLevel = 0;
int maxZoomLevel = 0;
ZoomControls zoomControls;
public CameraPreview(Context context, Camera camera)
{
super(context);
mContext = context;
this.mcamera = camera;
holder = getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
@Override
public void surfaceCreated(SurfaceHolder holder)
{
if(mcamera == null) return;
try
{
mcamera.setDisplayOrientation(90);
mcamera.setPreviewDisplay(holder);
mcamera.startPreview();
}
catch (IOException e)
{
Log.d(TAG, "Blad wlaczania podgladu kamery: " + e.getMessage());
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height)
{
if(holder.getSurface() == null)
{
return;
}
try
{
mcamera.stopPreview();
}
catch (Exception e)
{
}
Camera.Parameters params = mcamera.getParameters();
List<Camera.Size> sizes = params.getSupportedPreviewSizes();
Camera.Size optionalSize = getBestPreviewSize(width, height);
params.setPreviewSize(optionalSize.width, optionalSize.height);
mcamera.setParameters(params);
Display display = ((WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
switch (display.getRotation())
{
case Surface.ROTATION_0: mcamera.setDisplayOrientation(90); break;
case Surface.ROTATION_90: mcamera.setDisplayOrientation(0); break;
case Surface.ROTATION_180: mcamera.setDisplayOrientation(270); break;
case Surface.ROTATION_270: mcamera.setDisplayOrientation(180); break;
}
try
{
mcamera.setParameters(params);
mcamera.setPreviewDisplay(holder);
mcamera.startPreview();
}
catch (IOException e)
{
Log.d(TAG, "Blad wlaczania podgladu kamery" + e.getStackTrace());
}
ZoomControls zoomControls = (ZoomControls) findViewById(R.id.zoomControls);
if (params.isZoomSupported()) {
maxZoomLevel = params.getMaxZoom();
try {
zoomControls.setIsZoomInEnabled(true);
zoomControls.setIsZoomOutEnabled(true);
zoomControls.setOnZoomInClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (currentZoomLevel < 500) {
currentZoomLevel++;
mcamera.startSmoothZoom(currentZoomLevel);
}
}
});
zoomControls.setOnZoomOutClickListener(new OnClickListener() {
public void onClick(View v) {
if (currentZoomLevel > 0) {
currentZoomLevel--;
mcamera.startSmoothZoom(currentZoomLevel);
}
}
});
}
catch (Exception e)
{
e.printStackTrace();
}
}
else {
zoomControls.hide();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder)
{
mcamera.release();
mcamera = null;
}
private Camera.Size getBestPreviewSize(int width, int height) {
Camera.Size result = null;
Camera.Parameters p = mcamera.getParameters();
for (Camera.Size size : p.getSupportedPreviewSizes()) {
if (size.width <= width && size.height <= height) {
if (result == null) {
result = size;
} else {
int resultArea = result.width * result.height;
int newArea = size.width * size.height;
if (newArea > resultArea) {
result = size;
}
}
}
}
return result;
}
}
main_activity.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal">
<FrameLayout
android:id="@+id/camera_preview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" >
</FrameLayout>
<ZoomControls
android:id="@+id/zoomControls"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"/>
</RelativeLayout>
андроида манифеста
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.arturs.camerahowitworks">
<uses-feature android:name="android.hardware.Camera"/>
<uses-permission android:name="android.permission.CAMERA"/>
<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"
android:configChanges="orientation|screenSize">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Добавлено LOGS
$ adb shell am start -n
"com.example.arturs.camerahowitworksv2/com.example.arturs.camerahowitwork
sv2.MainActivity" -a android.intent.action.MAIN -c
android.intent.category.LAUNCHER -D
Waiting for application to come online:
com.example.arturs.camerahowitworksv2 |
com.example.arturs.camerahowitworksv2.test
Waiting for application to come online:
com.example.arturs.camerahowitworksv2 |
com.example.arturs.camerahowitworksv2.test
Connecting to com.example.arturs.camerahowitworksv2
E/Trace: error opening trace file: No such file or directory (2)
D/ActivityThread: setTargetHeapUtilization:0.25
D/ActivityThread: setTargetHeapIdealFree:8388608
D/ActivityThread: setTargetHeapConcurrentStart:2097152
W/ActivityThread: Application com.example.arturs.camerahowitworksv2
is waiting for the debugger on port 8100...
I/System.out: Sending WAIT chunk
I/dalvikvm: Debugger is active
Connected to the target VM, address: 'localhost:8609', transport:
'socket'
I/System.out: Debugger has connected
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: debugger has settled (1456)
D/ => Main Activity:: CameraInfo0
D/ => Main Activity:: -> onResume
D/ => Main Activity:: -> onResume
D/libEGL: loaded /system/lib/egl/libEGL_adreno200.so
D/libEGL: loaded /system/lib/egl/libGLESv1_CM_adreno200.so
D/libEGL: loaded /system/lib/egl/libGLESv2_adreno200.so
I/Adreno200-EGL: <qeglDrvAPI_eglInitialize:299>: EGL 1.4 QUALCOMM
build: (Merge)
Build Date: 07/09/13 Tue
Local Branch: AU_41
Remote Branch:
Local Patches:
Reconstruct Branch:
D/OpenGLRenderer: Enabling debug mode 0
W/System.err: java.lang.NullPointerException
W/System.err: at
com.example.arturs.camerahowitworksv2.CameraPreview.surfaceChanged
(Camera . Preview.java:131)
W/System.err: at
android.view.SurfaceView.updateWindow(SurfaceView.java:558)
W/System.err: at
android.view.SurfaceView.access$000(SurfaceView.java:85)
W/System.err: at
android.view.SurfaceView$3.onPreDraw(SurfaceView.java:173)
W/System.err: at
android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:671)
W/System.err: at
android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1828)
W/System.err: at
android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
W/System.err: at
android.view.ViewRootImpl$TraversalRunnable.run
(ViewRootImpl.java:4223)
W/System.err: at android.view.Choreographer$CallbackRecord.run
(Choreographer.java:725)
W/System.err: at android.view.Choreographer.doCallbacks
(Choreographer.java:555)
W/System.err: at
android.view.Choreographer.doFrame(Choreographer.java:525)
W/System.err: at
android.view.Choreographer$FrameDisplayEventReceiver.run
(Choreographer.java:711)
W/System.err: at
android.os.Handler.handleCallback(Handler.java:615)
W/System.err: at
android.os.Handler.dispatchMessage(Handler.java:92)
W/System.err: at android.os.Looper.loop(Looper.java:213)
W/System.err: at
android.app.ActivityThread.main(ActivityThread.java:4787)
W/System.err: at java.lang.reflect.Method.invokeNative(Native
Method)
W/System.err: at
java.lang.reflect.Method.invoke(Method.java:511)
W/System.err: at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:789)
W/System.err: at com.android.internal.os.ZygoteInit.main
(ZygoteInit.java:556)
W/System.err: at dalvik.system.NativeStart.main
(Native Method)
I/Choreographer: Skipped 108 frames! The application may be doing
too much work on its main thread.
W/Adreno200-ES20: <qgl2DrvAPI_glBufferSubData:778>: GL_INVALID_VALUE
D/OpenGLRenderer: GL error from OpenGLRenderer: 0x501
E/OpenGLRenderer: GL_INVALID_VALUE
Я положил их в классе CameraPreview в раздел surfaceChanged, просто не знает, если я сделал это правильно – ArturS
Не могли бы вы проверить правильность своего местоположения? – ArturS
Вам нужно добавить журналы, чтобы понять, какой код выполняется и что работает – Blundell