以前不知道有个系统属性可以做,后面的代码我几乎都用系统属性来写,比写个额外的广播接口方便多了。
实现一个相机的开关接口给上层调用,也就是打开后,上层无法再调用相机,关闭后可以正常打开,无需重启,直接贴代码
diff --git a/core/java/android/hardware/Camera.java b/core/java/android/hardware/Camera.java
index f6697134bfa6..eee994271221 100644
--- a/core/java/android/hardware/Camera.java
+++ b/core/java/android/hardware/Camera.java
@@ -51,6 +51,7 @@ import android.util.Log;
import android.view.Surface;
import android.view.SurfaceHolder;
+import android.os.SystemProperties;//add LQX
import com.android.internal.R;
import com.android.internal.annotations.GuardedBy;
import com.android.internal.app.IAppOpsCallback;
@@ -396,6 +397,13 @@ public class Camera {
* @see android.app.admin.DevicePolicyManager#getCameraDisabled(android.content.ComponentName)
*/
public static Camera open(int cameraId) {
+
+ // LQX
+ if(SystemProperties.get("persist.sys.disablecamera").equals("true")){
+ Log.d(TAG, "camera sensor is close" + "LQX");
+ return null;
+ }
+ // LQX
return new Camera(cameraId);
}
@@ -409,6 +417,12 @@ public class Camera {
* @see #open(int)
*/
public static Camera open() {
+ //add
+ if(SystemProperties.get("persist.sys.disablecamera").equals("true")){
+ Log.d(TAG, "camera sensor is close" + "LQX");
+ return null;
+ }
+ // end
int numberOfCameras = getNumberOfCameras();
CameraInfo cameraInfo = new CameraInfo();
for (int i = 0; i < numberOfCameras; i++) {
@@ -463,7 +477,12 @@ public class Camera {
if (halVersion < CAMERA_HAL_API_VERSION_3_0) {
throw new IllegalArgumentException("Unsupported HAL version " + halVersion);
}
-
+ // add
+ if(SystemProperties.get("persist.sys.disablecamera").equals("true")){
+ Log.d(TAG, "camera sensor is close" + "LQX");
+ return null;
+ }
+ // end
return new Camera(cameraId);
}
@@ -532,6 +551,12 @@ public class Camera {
* @hide
*/
public static Camera openUninitialized() {
+ // add
+ if(SystemProperties.get("persist.sys.disablecamera").equals("true")){
+ Log.d(TAG, "camera sensor is close" + "LQX");
+ return null;
+ }
+ //end
return new Camera();
}
diff --git a/core/java/android/hardware/camera2/CameraManager.java b/core/java/android/hardware/camera2/CameraManager.java
index 56592ab43143..d885894dd106 100644
--- a/core/java/android/hardware/camera2/CameraManager.java
+++ b/core/java/android/hardware/camera2/CameraManager.java
@@ -720,6 +720,13 @@ public final class CameraManager {
final int oomScoreOffset) throws CameraAccessException {
CameraCharacteristics characteristics = getCameraCharacteristics(cameraId);
CameraDevice device = null;
+ //add
+ if(SystemProperties.get("persist.sys.disablecamera").equals("true")){
+ Log.d(TAG, "camera2 sensor is close" + "LQX");
+
+ return null;
+ }
+ // end
Map<String, CameraCharacteristics> physicalIdsToChars =
getPhysicalIdToCharsMap(characteristics);
synchronized (mLock) {