Android demo add camera permission check

pixpark · Jan 21, 2024 · b669984 · b669984
1 parent f984fbf
commit b669984
Show file tree

Hide file tree

Showing 2 changed files with 53 additions and 13 deletions.
diff --git a/android/app/src/main/java/com/pixpark/GPUPixel/MainActivity.java b/android/app/src/main/java/com/pixpark/GPUPixel/MainActivity.java
@@ -1,14 +1,21 @@
 package com.pixpark.PixDemo;
 
+import static android.widget.Toast.LENGTH_LONG;
+
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
 
+import android.Manifest;
+import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.SurfaceHolder;
 import android.view.WindowManager;
 import android.widget.Button;
 import android.widget.SeekBar;
+import android.widget.Toast;
 
 import com.pixpark.PixDemo.databinding.ActivityMainBinding;
 import com.pixpark.gpupixel.GPUPixel;
@@ -17,6 +24,9 @@
 import com.pixpark.gpupixel.GPUPixelView;
 
 public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback {
+    // 在Activity中定义一个常量以便在权限请求结果中识别相机权限请求
+    private static final int CAMERA_PERMISSION_REQUEST_CODE = 200;
+
 
     // Used to load the 'gpupixel' library on application startup.
     static {
@@ -39,6 +49,7 @@ protected void onCreate(Bundle savedInstanceState) {
         binding = ActivityMainBinding.inflate(getLayoutInflater());
         setContentView(binding.getRoot());
 
+        // get log path
         String path =  getExternalFilesDir("gpupixel").getAbsolutePath();
         Log.i("GPUPixel", path);
 
@@ -48,17 +59,6 @@ protected void onCreate(Bundle savedInstanceState) {
         // preview
         surfaceView = findViewById(R.id.surfaceView);
         surfaceView.setMirror(true);
-        // 美颜滤镜
-        filter = GPUPixelFilter.create("BeautyFaceFilter");
-
-        // camera
-        sourceCamera = new GPUPixelSourceCamera(this.getApplicationContext());
-        sourceCamera.addTarget(filter);
-        filter.addTarget(surfaceView);
-
-        // set default value
-        filter.setProperty("skin_smoothing", 0.5);
-        filter.setProperty("whiteness", 0.4);
 
         smooth_seekbar = findViewById(R.id.smooth_seekbar);
         smooth_seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@@ -95,8 +95,48 @@ public void onStopTrackingTouch(SeekBar seekBar) {
 
             }
         });
+        //
+        this.checkCameraPermission();
     }
 
+    public void startCameraFilter() {
+        // 美颜滤镜
+        filter = GPUPixelFilter.create("BeautyFaceFilter");
+
+        // camera
+        sourceCamera = new GPUPixelSourceCamera(this.getApplicationContext());
+        sourceCamera.addTarget(filter);
+        filter.addTarget(surfaceView);
+
+        // set default value
+        filter.setProperty("skin_smoothing", 0.5);
+        filter.setProperty("whiteness", 0.4);
+    }
+
+
+    public void checkCameraPermission() {
+        // 检查相机权限是否已授予
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
+            // 如果未授予相机权限，向用户请求权限
+            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, CAMERA_PERMISSION_REQUEST_CODE);
+        } else {
+            startCameraFilter();
+        }
+
+    }
+
+    // 处理权限请求结果
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        if (requestCode == CAMERA_PERMISSION_REQUEST_CODE) {
+            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                startCameraFilter();
+            } else {
+                Toast.makeText(this, "No Camera permission!", LENGTH_LONG);
+            }
+        }
+    }
 
 
     public void surfaceCreated(SurfaceHolder holder) {

diff --git a/android/app/src/main/res/layout/activity_main.xml b/android/app/src/main/res/layout/activity_main.xml
@@ -31,7 +31,7 @@
         android:layout_centerHorizontal="true"
         android:layout_marginBottom="80dp"
         android:max="10"
-        android:progress="5" />
+        android:progress="0" />
 
     <TextView
         android:id="@+id/meibai"
@@ -51,5 +51,5 @@
         android:layout_centerHorizontal="true"
         android:layout_marginBottom="30dp"
         android:max="10"
-        android:progress="4" />
+        android:progress="0" />
 </RelativeLayout>