Adding low device storage check to all face detection samples.

Also fixes type in FaceGraphic pointed out in a github PR.

Change-Id: Ib1edff665d2811bd6cea353deff8f85800f5fdb7

Author: claywilkinson

visionSamples/FaceTracker/app/src/main/java/com/google/android/gms/samples/vision/face/facetracker/FaceGraphic.java

@@ -102,7 +102,7 @@ public void draw(Canvas canvas) {
         canvas.drawText("id: " + mFaceId, x + ID_X_OFFSET, y + ID_Y_OFFSET, mIdPaint);
         canvas.drawText("happiness: " + String.format("%.2f", face.getIsSmilingProbability()), x - ID_X_OFFSET, y - ID_Y_OFFSET, mIdPaint);
         canvas.drawText("right eye: " + String.format("%.2f", face.getIsRightEyeOpenProbability()), x + ID_X_OFFSET * 2, y + ID_Y_OFFSET * 2, mIdPaint);
-        canvas.drawText("left eye: " + String.format("%.2f", face.getIsRightEyeOpenProbability()), x - ID_X_OFFSET*2, y - ID_Y_OFFSET*2, mIdPaint);
+        canvas.drawText("left eye: " + String.format("%.2f", face.getIsLeftEyeOpenProbability()), x - ID_X_OFFSET*2, y - ID_Y_OFFSET*2, mIdPaint);
 
         // Draws a bounding box around the face.
         float xOffset = scaleX(face.getWidth() / 2.0f);

visionSamples/FaceTracker/app/src/main/java/com/google/android/gms/samples/vision/face/facetracker/FaceTrackerActivity.java

@@ -21,13 +21,16 @@
 import android.app.Dialog;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.util.Log;
 import android.view.View;
+import android.widget.Toast;
 
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.GoogleApiAvailability;
@@ -140,6 +143,17 @@ private void createCameraSource() {
             // available.  The detector will automatically become operational once the library
             // download completes on device.
             Log.w(TAG, "Face detector dependencies are not yet available.");
+
+            // Check for low storage.  If there is low storage, the native library will not be
+            // downloaded, so detection will not become operational.
+            IntentFilter lowstorageFilter = new IntentFilter(Intent.ACTION_DEVICE_STORAGE_LOW);
+            boolean hasLowStorage = registerReceiver(null, lowstorageFilter) != null;
+
+
+            if (hasLowStorage) {
+                Toast.makeText(this, R.string.low_storage_error, Toast.LENGTH_LONG).show();
+                Log.w(TAG, getString(R.string.low_storage_error));
+            }
         }
 
         mCameraSource = new CameraSource.Builder(context, detector)

visionSamples/FaceTracker/app/src/main/res/values/strings.xml

@@ -3,4 +3,5 @@
     <string name="ok">OK</string>
     <string name="permission_camera_rationale">Access to the camera is needed for detection</string>
     <string name="no_camera_permission">This application cannot run because it does not have the camera permission.  The application will now exit.</string>
+    <string name="low_storage_error">Face detector dependencies cannot be downloaded due to low device storage</string>
 </resources>

visionSamples/multi-tracker/app/src/main/java/com/google/android/gms/samples/vision/face/multitracker/MultiTrackerActivity.java

@@ -22,13 +22,16 @@
 import android.app.Dialog;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.util.Log;
 import android.view.View;
+import android.widget.Toast;
 
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.GoogleApiAvailability;
@@ -163,6 +166,16 @@ private void createCameraSource() {
             // available.  The detectors will automatically become operational once the library
             // downloads complete on device.
             Log.w(TAG, "Detector dependencies are not yet available.");
+
+            // Check for low storage.  If there is low storage, the native library will not be
+            // downloaded, so detection will not become operational.
+            IntentFilter lowstorageFilter = new IntentFilter(Intent.ACTION_DEVICE_STORAGE_LOW);
+            boolean hasLowStorage = registerReceiver(null, lowstorageFilter) != null;
+
+            if (hasLowStorage) {
+                Toast.makeText(this, R.string.low_storage_error, Toast.LENGTH_LONG).show();
+                Log.w(TAG, getString(R.string.low_storage_error));
+            }
         }
 
         // Creates and starts the camera.  Note that this uses a higher resolution in comparison

visionSamples/multi-tracker/app/src/main/res/values/strings.xml

@@ -3,4 +3,5 @@
     <string name="ok">OK</string>
     <string name="permission_camera_rationale">Access to the camera is needed for detection</string>
     <string name="no_camera_permission">This application cannot run because it does not have the camera permission.  The application will now exit.</string>
+    <string name="low_storage_error">Face detector dependencies cannot be downloaded due to low device storage</string>
 </resources>

visionSamples/photo-demo/app/src/main/java/com/google/android/gms/samples/vision/face/photo/PhotoViewerActivity.java

@@ -16,11 +16,14 @@
 package com.google.android.gms.samples.vision.face.photo;
 
 import android.app.Activity;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.os.Bundle;
 import android.util.Log;
 import android.util.SparseArray;
+import android.widget.Toast;
 
 import com.google.android.gms.samples.vision.face.patch.SafeFaceDetector;
 import com.google.android.gms.vision.Detector;
@@ -79,6 +82,16 @@ protected void onCreate(Bundle savedInstanceState) {
             // available.  The detector will automatically become operational once the library
             // download completes on device.
             Log.w(TAG, "Face detector dependencies are not yet available.");
+
+            // Check for low storage.  If there is low storage, the native library will not be
+            // downloaded, so detection will not become operational.
+            IntentFilter lowstorageFilter = new IntentFilter(Intent.ACTION_DEVICE_STORAGE_LOW);
+            boolean hasLowStorage = registerReceiver(null, lowstorageFilter) != null;
+
+            if (hasLowStorage) {
+                Toast.makeText(this, R.string.low_storage_error, Toast.LENGTH_LONG).show();
+                Log.w(TAG, getString(R.string.low_storage_error));
+            }
         }
 
         FaceView overlay = (FaceView) findViewById(R.id.faceView);

visionSamples/photo-demo/app/src/main/res/values/strings.xml

@@ -1,4 +1,5 @@
 <resources>
     <string name="app_name">Photo Demo</string>
     <string name="title_activity_photo_viewer">Photo Viewer</string>
+    <string name="low_storage_error">Face detector dependencies cannot be downloaded due to low device storage</string>
 </resources>