android 스크린샷 이벤트 캐치

 

ContentObserver 를 사용 한다

 

package com.example.test111;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.ContextCompat;

import android.Manifest;
import android.app.Activity;
import android.app.ActivityManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.ContentObserver;
import android.database.Cursor;
import android.media.projection.MediaProjection;
import android.media.projection.MediaProjectionManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.provider.MediaStore;
import android.util.Log;
import android.widget.Toast;

import java.util.List;

public class MainActivity extends AppCompatActivity {
    MediaProjectionManager mediaProjectionManager;
    MediaProjection mediaProjection;

    Activity myActivity;

    String[] permission_list = {
            Manifest.permission.WRITE_EXTERNAL_STORAGE,
            Manifest.permission.READ_EXTERNAL_STORAGE,
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        checkPermission();
        myActivity = this;
        myActivity.getContentResolver().registerContentObserver(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, true, contentObserver);
    }

    private ContentObserver contentObserver = new ContentObserver(new Handler()) {
        @Override
        public boolean deliverSelfNotifications() {
            return super.deliverSelfNotifications();
        }
        @Override
        public void onChange(boolean selfChange) {
            super.onChange(selfChange);
        }

        @Override
        public void onChange(boolean selfChange, Uri uri) {
            super.onChange(selfChange, uri);
            Log.d("Woong", "요기1: " + uri);
            String path = getFilePathFromContentResolver(myActivity, uri);
            Log.d("Woong", "요기2: " + path);

            if(isScreenshotPath(path)){

            }else{

            }
//            if (isReadExternalStoragePermissionGranted()) {
//                String path = getFilePathFromContentResolver(myActivity, uri);
//                if (isScreenshotPath(path)) {
//                    Log.d("Woong","요기: "+path);
//                }
//            } else {
//            }
        }
    };

    private boolean isScreenshotPath(String path) {
        return path != null && path.toLowerCase().contains("screenshots");
    }

    private String getFilePathFromContentResolver(Context context, Uri uri) {
        try {
            Cursor cursor = context.getContentResolver().query(uri, new String[]{
                    MediaStore.Images.Media.DISPLAY_NAME,
                    MediaStore.Images.Media.DATA
            }, null, null, null);
            if (cursor != null && cursor.moveToFirst()) {
                String path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
                cursor.close();
                return path;
            }
        } catch (IllegalStateException ignored) {
        }
        return null;
    }


    private boolean isReadExternalStoragePermissionGranted() {
        return ContextCompat.checkSelfPermission(myActivity, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
    }


    public void checkPermission() {
        //현재 안드로이드 버전이 6.0미만이면 메서드를 종료한다.
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M)
            return;
        for (String permission : permission_list) {
            //권한 허용 여부를 확인한다.
            int chk = checkCallingOrSelfPermission(permission);
            if (chk == PackageManager.PERMISSION_DENIED) {
                //권한 허용을여부를 확인하는 창을 띄운다
                requestPermissions(permission_list, 0);
            }
        }
    }


    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 0) {
            for (int i = 0; i < grantResults.length; i++) {
                //허용됬다면
                if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {
                } else {
                    Toast.makeText(getApplicationContext(), "앱권한설정하세요", Toast.LENGTH_LONG).show();
                    finish();
                }
            }
        }
    }
}