Java samples updated to be compatible with both old (2.2+) and new (3.0+) Android versions

modules/java/android_test/.classpath

@@ -4,7 +4,6 @@
 	<classpathentry kind="src" path="gen"/>
 	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
-	<classpathentry kind="src" path="OpenCV_src"/>
 	<classpathentry kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
 	<classpathentry kind="output" path="bin/classes"/>
 </classpath>

modules/java/android_test/.project

@@ -1,40 +1,33 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
+<projectDescription>
-	<name>OpenCV_JavaAPI_Tests</name>
+	<name>OpenCV_JavaAPI_Tests</name>
-	<comment></comment>
+	<comment></comment>
-	<projects>
+	<projects>
-	</projects>
+	</projects>
-	<buildSpec>
+	<buildSpec>
-		<buildCommand>
+		<buildCommand>
-			<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
+			<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
-			<arguments>
+			<arguments>
-			</arguments>
+			</arguments>
-		</buildCommand>
+		</buildCommand>
-		<buildCommand>
+		<buildCommand>
-			<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
+			<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
-			<arguments>
+			<arguments>
-			</arguments>
+			</arguments>
-		</buildCommand>
+		</buildCommand>
-		<buildCommand>
+		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
+			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
+			<arguments>
-			</arguments>
+			</arguments>
-		</buildCommand>
+		</buildCommand>
-		<buildCommand>
+		<buildCommand>
-			<name>com.android.ide.eclipse.adt.ApkBuilder</name>
+			<name>com.android.ide.eclipse.adt.ApkBuilder</name>
-			<arguments>
+			<arguments>
-			</arguments>
+			</arguments>
-		</buildCommand>
+		</buildCommand>
-	</buildSpec>
+	</buildSpec>
-	<natures>
+	<natures>
-		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
+		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
-		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
+	</natures>
-	<linkedResources>
+</projectDescription>
-		<link>
-			<name>OpenCV_src</name>
-			<type>2</type>
-			<locationURI>_android_OpenCV_8d28b05d/src</locationURI>
-		</link>
-	</linkedResources>
-</projectDescription>

samples/android/tutorial-0-androidcamera/AndroidManifest.xml

@@ -10,6 +10,12 @@
                       android:largeScreens="true" 
                       android:anyDensity="true" />
 
+    <uses-sdk android:minSdkVersion="8"/>
+    
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-feature android:name="android.hardware.camera" />
+    <uses-feature android:name="android.hardware.camera.autofocus" />
+    
     <application android:label="@string/app_name" android:icon="@drawable/icon">
         <activity android:name="Sample0Base"
                   android:label="@string/app_name"
@@ -22,10 +28,5 @@
         </activity>
     </application>
     
-    <uses-sdk android:minSdkVersion="8" />
-
-    <uses-permission android:name="android.permission.CAMERA"/>
-    <uses-feature android:name="android.hardware.camera" />
-    <uses-feature android:name="android.hardware.camera.autofocus" />
 
 </manifest> 

samples/android/tutorial-0-androidcamera/project.properties

@@ -1,2 +1,2 @@
 # Project target.
-target=android-8
+target=android-11

samples/android/tutorial-0-androidcamera/src/org/opencv/samples/tutorial0/SampleViewBase.java

@@ -6,8 +6,10 @@ import java.util.List;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.graphics.SurfaceTexture;
 import android.hardware.Camera;
 import android.hardware.Camera.PreviewCallback;
+import android.os.Build;
 import android.util.Log;
 import android.view.SurfaceHolder;
 import android.view.SurfaceView;
@@ -59,11 +61,15 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
 
             params.setPreviewSize(getFrameWidth(), getFrameHeight());
             mCamera.setParameters(params);
-            try {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-				mCamera.setPreviewDisplay(null);
+            	mCamera.setPreviewTexture( new SurfaceTexture(10) );
-			} catch (IOException e) {
+            } else {
-				Log.e(TAG, "mCamera.setPreviewDisplay fails: " + e);
+	            try {
-			}
+					mCamera.setPreviewDisplay(null);
+				} catch (IOException e) {
+					Log.e(TAG, "mCamera.setPreviewDisplay fails: " + e);
+				}
+            }
             mCamera.startPreview();
         }
     }

samples/android/tutorial-1-addopencv/project.properties

@@ -1,3 +1,3 @@
 android.library.reference.1=../../../android/build
 # Project target.
-target=android-8
+target=android-11

samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/SampleViewBase.java

@@ -6,8 +6,10 @@ import java.util.List;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.graphics.SurfaceTexture;
 import android.hardware.Camera;
 import android.hardware.Camera.PreviewCallback;
+import android.os.Build;
 import android.util.Log;
 import android.view.SurfaceHolder;
 import android.view.SurfaceView;
@@ -59,11 +61,15 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
 
             params.setPreviewSize(getFrameWidth(), getFrameHeight());
             mCamera.setParameters(params);
-            try {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-				mCamera.setPreviewDisplay(null);
+            	mCamera.setPreviewTexture( new SurfaceTexture(10) );
-			} catch (IOException e) {
+            } else {
-				Log.e(TAG, "mCamera.setPreviewDisplay fails: " + e);
+	            try {
-			}
+					mCamera.setPreviewDisplay(null);
+				} catch (IOException e) {
+					Log.e(TAG, "mCamera.setPreviewDisplay fails: " + e);
+				}
+            }
             mCamera.startPreview();
         }
     }

samples/android/tutorial-3-native/project.properties

@@ -1,2 +1,2 @@
 # Project target.
-target=android-8
+target=android-11

samples/android/tutorial-3-native/src/org/opencv/samples/tutorial3/SampleViewBase.java

@@ -6,8 +6,10 @@ import java.util.List;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.graphics.SurfaceTexture;
 import android.hardware.Camera;
 import android.hardware.Camera.PreviewCallback;
+import android.os.Build;
 import android.util.Log;
 import android.view.SurfaceHolder;
 import android.view.SurfaceView;
@@ -59,11 +61,15 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
 
             params.setPreviewSize(getFrameWidth(), getFrameHeight());
             mCamera.setParameters(params);
-            try {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-				mCamera.setPreviewDisplay(null);
+            	mCamera.setPreviewTexture( new SurfaceTexture(10) );
-			} catch (IOException e) {
+            } else {
-				Log.e(TAG, "mCamera.setPreviewDisplay fails: " + e);
+	            try {
-			}
+					mCamera.setPreviewDisplay(null);
+				} catch (IOException e) {
+					Log.e(TAG, "mCamera.setPreviewDisplay fails: " + e);
+				}
+            }
             mCamera.startPreview();
         }
     }

samples/android/tutorial-4-mixed/project.properties

@@ -1,3 +1,3 @@
 android.library.reference.1=../../../android/build
 # Project target.
-target=android-8
+target=android-11

samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/SampleViewBase.java

@@ -6,8 +6,10 @@ import java.util.List;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.graphics.SurfaceTexture;
 import android.hardware.Camera;
 import android.hardware.Camera.PreviewCallback;
+import android.os.Build;
 import android.util.Log;
 import android.view.SurfaceHolder;
 import android.view.SurfaceView;
@@ -59,11 +61,15 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
 
             params.setPreviewSize(getFrameWidth(), getFrameHeight());
             mCamera.setParameters(params);
-            try {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-				mCamera.setPreviewDisplay(null);
+            	mCamera.setPreviewTexture( new SurfaceTexture(10) );
-			} catch (IOException e) {
+            } else {
-				Log.e(TAG, "mCamera.setPreviewDisplay fails: " + e);
+	            try {
-			}
+					mCamera.setPreviewDisplay(null);
+				} catch (IOException e) {
+					Log.e(TAG, "mCamera.setPreviewDisplay fails: " + e);
+				}
+            }
             mCamera.startPreview();
         }
     }