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- Renamed AndroidRewrite.java to Global.java - Fixed infinite loadFile() calls - Moved torchToggle() and changeBackground() Global
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Nachiketa Vadera
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Sep 14, 2018
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app/src/main/java/android/nachiketa/flashlight/AndroidReadWrite.java
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100
app/src/main/java/android/nachiketa/flashlight/Global.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| package android.nachiketa.flashlight; | ||
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| import android.content.Context; | ||
| import android.graphics.Color; | ||
| import android.hardware.camera2.CameraAccessException; | ||
| import android.hardware.camera2.CameraManager; | ||
| import android.os.Build; | ||
| import android.os.Vibrator; | ||
| import android.util.Log; | ||
| import android.widget.RelativeLayout; | ||
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| import java.io.BufferedReader; | ||
| import java.io.FileInputStream; | ||
| import java.io.FileOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStreamReader; | ||
| import java.io.OutputStreamWriter; | ||
| import java.io.Writer; | ||
| import java.util.Objects; | ||
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| public class Global { | ||
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| // TODO : SOLVE BACKGROUND COLOR ERROR - NULL POINTER EXCEPTION (TRY TO PASS ACTIVITY AS ARGUMENT) | ||
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| private RelativeLayout layout; | ||
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| public void setRelativeLayout(RelativeLayout relativeLayout) { | ||
| layout = relativeLayout; | ||
| } | ||
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| public void changeBackground(boolean isTorchOn) { | ||
| if (isTorchOn) { | ||
| Objects.requireNonNull(layout).setBackgroundColor(Color.WHITE); | ||
| } else { | ||
| Objects.requireNonNull(layout).setBackgroundColor(Color.BLACK); | ||
| } | ||
| } | ||
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| public boolean torchToggle(String command, Context context) { | ||
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| Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE); | ||
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| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { | ||
| CameraManager camManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE); | ||
| String cameraId = null; // Usually back camera is at 0 position. | ||
| try { | ||
| if (camManager != null) { | ||
| cameraId = camManager.getCameraIdList()[0]; | ||
| } | ||
| if (camManager != null) { | ||
| if (command.equals("on")) { | ||
| camManager.setTorchMode(cameraId, true); // Turn ON | ||
| Objects.requireNonNull(vibrator).vibrate(500); | ||
| changeBackground(true); | ||
| return true; | ||
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| } else { | ||
| camManager.setTorchMode(cameraId, false); // Turn OFF | ||
| Objects.requireNonNull(vibrator).vibrate(500); | ||
| changeBackground(false); | ||
| return false; | ||
| } | ||
| } | ||
| } catch (CameraAccessException e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
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| public static boolean saveFile(Context context, String fileName, String data) { | ||
| try { | ||
| FileOutputStream fos = context.openFileOutput(fileName, Context.MODE_PRIVATE); | ||
| Writer out = new OutputStreamWriter(fos); | ||
| out.write(data); | ||
| out.close(); | ||
| Log.i("saveFile", "File saved successfully"); | ||
| return true; | ||
| } catch (IOException ioEx) { | ||
| Log.e("saveFile", ioEx.getMessage()); | ||
| return false; | ||
| } | ||
| } | ||
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| public static String loadFile(Context context, String fileName) { | ||
| try { | ||
| FileInputStream fileInputStream = context.openFileInput(fileName); | ||
| BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(fileInputStream)); | ||
| String line = bufferedReader.readLine(); | ||
| bufferedReader.close(); | ||
| Log.i("loadFile", "File read successfully"); | ||
| return line; | ||
| } catch (IOException ioEx) { | ||
| Log.e("loadFile", ioEx.getMessage()); | ||
| return null; | ||
| } | ||
| } | ||
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| } |
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