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package com.android.camera;
import android.Manifest;
import android.app.Activity;
import android.app.Dialog;
import android.app.AlertDialog;
import android.app.KeyguardManager;
import android.content.BroadcastReceiver;
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.view.KeyEvent;
import android.view.Window;
import android.view.WindowManager;
import com.android.camera.app.CameraServicesImpl;
import com.android.camera.debug.Log;
import com.android.camera.settings.Keys;
import com.android.camera.settings.SettingsManager;
import com.android.camera.util.QuickActivity;
import com.android.camera2.R;
/**
* Activity that shows permissions request dialogs and handles lack of critical permissions.
*/
public class PermissionsActivity extends QuickActivity {
private static final Log.Tag TAG = new Log.Tag("PermissionsActivity");
private static int PERMISSION_REQUEST_CODE = 1;
private static int RESULT_CODE_OK = 1;
private static int RESULT_CODE_FAILED = 2;
private int mIndexPermissionRequestCamera;
private int mIndexPermissionRequestMicrophone;
private int mIndexPermissionRequestLocation;
private int mIndexPermissionRequestStorage;
private boolean mShouldRequestCameraPermission;
private boolean mShouldRequestMicrophonePermission;
private boolean mShouldRequestLocationPermission;
private boolean mShouldRequestStoragePermission;
private int mNumPermissionsToRequest;
private boolean mFlagHasCameraPermission;
private boolean mFlagHasMicrophonePermission;
private boolean mFlagHasStoragePermission;
private SettingsManager mSettingsManager;
/**
* Close activity when secure app passes lock screen or screen turns
* off.
*/
private final BroadcastReceiver mShutdownReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Log.v(TAG, "received intent, finishing: " + intent.getAction());
finish();
}
};
@Override
protected void onCreateTasks(Bundle savedInstanceState) {
setContentView(R.layout.permissions);
mSettingsManager = CameraServicesImpl.instance().getSettingsManager();
// Filter for screen off so that we can finish permissions activity
// when screen is off.
IntentFilter filter_screen_off = new IntentFilter(Intent.ACTION_SCREEN_OFF);
registerReceiver(mShutdownReceiver, filter_screen_off);
// Filter for phone unlock so that we can finish permissions activity
// via this UI path:
// 1. from secure lock screen, user starts secure camera
// 2. user presses home button
// 3. user unlocks phone
IntentFilter filter_user_unlock = new IntentFilter(Intent.ACTION_USER_PRESENT);
registerReceiver(mShutdownReceiver, filter_user_unlock);
Window win = getWindow();
if (isKeyguardLocked()) {
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
} else {
win.clearFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
}
}
@Override
protected void onResumeTasks() {
mNumPermissionsToRequest = 0;
checkPermissions();
}
@Override
protected void onDestroyTasks() {
Log.v(TAG, "onDestroy: unregistering receivers");
unregisterReceiver(mShutdownReceiver);
}
private void checkPermissions() {
if (checkSelfPermission(Manifest.permission.CAMERA)
!= PackageManager.PERMISSION_GRANTED) {
mNumPermissionsToRequest++;
mShouldRequestCameraPermission = true;
} else {
mFlagHasCameraPermission = true;
}
if (checkSelfPermission(Manifest.permission.RECORD_AUDIO)
!= PackageManager.PERMISSION_GRANTED) {
mNumPermissionsToRequest++;
mShouldRequestMicrophonePermission = true;
} else {
mFlagHasMicrophonePermission = true;
}
if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
mNumPermissionsToRequest++;
mShouldRequestStoragePermission = true;
} else {
mFlagHasStoragePermission = true;
}
if (checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
mNumPermissionsToRequest++;
mShouldRequestLocationPermission = true;
}
if (mNumPermissionsToRequest != 0) {
if (!isKeyguardLocked() && !mSettingsManager.getBoolean(SettingsManager.SCOPE_GLOBAL,
Keys.KEY_HAS_SEEN_PERMISSIONS_DIALOGS)) {
buildPermissionsRequest();
} else {
// Permissions dialog has already been shown, or we're on
// lockscreen, and we're still missing permissions.
handlePermissionsFailure();
}
} else {
handlePermissionsSuccess();
}
}
private void buildPermissionsRequest() {
String[] permissionsToRequest = new String[mNumPermissionsToRequest];
int permissionsRequestIndex = 0;
if (mShouldRequestCameraPermission) {
permissionsToRequest[permissionsRequestIndex] = Manifest.permission.CAMERA;
mIndexPermissionRequestCamera = permissionsRequestIndex;
permissionsRequestIndex++;
}
if (mShouldRequestMicrophonePermission) {
permissionsToRequest[permissionsRequestIndex] = Manifest.permission.RECORD_AUDIO;
mIndexPermissionRequestMicrophone = permissionsRequestIndex;
permissionsRequestIndex++;
}
if (mShouldRequestStoragePermission) {
permissionsToRequest[permissionsRequestIndex] = Manifest.permission.READ_EXTERNAL_STORAGE;
mIndexPermissionRequestStorage = permissionsRequestIndex;
permissionsRequestIndex++;
}
if (mShouldRequestLocationPermission) {
permissionsToRequest[permissionsRequestIndex] = Manifest.permission.ACCESS_COARSE_LOCATION;
mIndexPermissionRequestLocation = permissionsRequestIndex;
}
Log.v(TAG, "requestPermissions count: " + permissionsToRequest.length);
requestPermissions(permissionsToRequest, PERMISSION_REQUEST_CODE);
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
Log.v(TAG, "onPermissionsResult counts: " + permissions.length + ":" + grantResults.length);
mSettingsManager.set(
SettingsManager.SCOPE_GLOBAL,
Keys.KEY_HAS_SEEN_PERMISSIONS_DIALOGS,
true);
if (mShouldRequestCameraPermission) {
if (grantResults[mIndexPermissionRequestCamera] == PackageManager.PERMISSION_GRANTED) {
mFlagHasCameraPermission = true;
} else {
handlePermissionsFailure();
}
}
if (mShouldRequestMicrophonePermission) {
if (grantResults[mIndexPermissionRequestMicrophone] == PackageManager.PERMISSION_GRANTED) {
mFlagHasMicrophonePermission = true;
} else {
handlePermissionsFailure();
}
}
if (mShouldRequestStoragePermission) {
if (grantResults[mIndexPermissionRequestStorage] == PackageManager.PERMISSION_GRANTED) {
mFlagHasStoragePermission = true;
} else {
handlePermissionsFailure();
}
}
if (mShouldRequestLocationPermission) {
if (grantResults[mIndexPermissionRequestLocation] == PackageManager.PERMISSION_GRANTED) {
// Do nothing
} else {
// Do nothing
}
}
if (mFlagHasCameraPermission && mFlagHasMicrophonePermission && mFlagHasStoragePermission) {
handlePermissionsSuccess();
}
}
private void handlePermissionsSuccess() {
Intent intent = new Intent(this, CameraActivity.class);
startActivity(intent);
finish();
}
private void handlePermissionsFailure() {
new AlertDialog.Builder(this).setTitle(getResources().getString(R.string.camera_error_title))
.setMessage(getResources().getString(R.string.error_permissions))
.setCancelable(false)
.setOnKeyListener(new Dialog.OnKeyListener() {
@Override
public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
finish();
}
return true;
}
})
.setPositiveButton(getResources().getString(R.string.dialog_dismiss),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
})
.show();
}
}
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