Я создаю приложение для Android, в котором хочу записывать видео и мигать вспышкой таким образом, чтобы создать иллюзию, что кто-то делает снимки.
Я пишу код, но свет вспышки поворачиваетсяВыключен во время записи и по окончании записи начинает мигать.
MainActivity:
public class MainActivity extends AppCompatActivity {
private static final int MY_PERMISSIONS_REQUEST_CAMERA = 555;
private static final int ACTION_TAKE_VIDEO = 1000;
Button btn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{android.Manifest.permission.CAMERA}, MY_PERMISSIONS_REQUEST_CAMERA);
Intent serviceIntent = new Intent(this, MyService.class);
startService(serviceIntent);
startRecording();
} else {
Intent serviceIntent = new Intent(this, MyService.class);
startService(serviceIntent);
startRecording();
}
}
private void startRecording() {
Intent takeVideoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
takeVideoIntent.putExtra(MediaStore.EXTRA_DURATION_LIMIT, 30);
takeVideoIntent.putExtra(MediaStore.EXTRA_OUTPUT, Environment.getExternalStorageDirectory().getPath() + "videocapture_example.mp4");
startActivityForResult(takeVideoIntent, ACTION_TAKE_VIDEO);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
return true;
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_CAMERA: {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
} else {
}
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// Check which request we're responding to
if (requestCode == ACTION_TAKE_VIDEO) {
// Make sure the request was successful
if (resultCode == RESULT_OK) {
}
}
}
}
MyService.java: Класс обслуживания
public class MyService extends Service {
public static Camera cam = null;
String value ="10";
public MyService() {
}
@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
onTaskRemoved(intent);
flashlightSOS();
Toast.makeText(this, "This is service", Toast.LENGTH_SHORT).show();
return START_STICKY;
}
@Override
public void onTaskRemoved(Intent rootIntent) {
Intent restartServiceIntent=new Intent(getApplicationContext(), this.getClass());
restartServiceIntent.setPackage(getPackageName());
startService(restartServiceIntent);
super.onTaskRemoved(rootIntent);
}
public void flashlightSOS(){
while (value.equalsIgnoreCase(value)) {
flashLightOn();
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
flashLightOff();
}
}, 5000);
}
}
public void flashLightOn() {
try {
if (getPackageManager().hasSystemFeature(
PackageManager.FEATURE_CAMERA_FLASH)) {
cam = Camera.open();
Camera.Parameters p = cam.getParameters();
p.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
cam.setParameters(p);
cam.startPreview();
}
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getBaseContext(), "Exception flashLightOn()",
Toast.LENGTH_SHORT).show();
}
}
public void flashLightOff() {
try {
if (getPackageManager().hasSystemFeature(
PackageManager.FEATURE_CAMERA_FLASH)) {
cam.stopPreview();
cam.release();
cam = null;
}
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getBaseContext(), "Exception flashLightOff",
Toast.LENGTH_SHORT).show();
}
}
}
Файл манифеста:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.sadiariaz.camerasosflash">
<uses-feature android:name="android.hardware.camera" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" `/>`
<uses-permission android:name="android.permission.FLASHLIGHT" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER"
/>
</intent-filter>
</activity>
<service
android:name=".MyService"
android:enabled="true"
android:exported="true"> </service>
<activity android:name=".VideoCapture"></activity>
</application>
</manifest>
Я хочу, чтобы он работал так, чтобы вспышка мигала, когда кто-то снимает во время записи.