54 lines
1.9 KiB
Java
54 lines
1.9 KiB
Java
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.camera;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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/**
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* {@code CameraButtonIntentReceiver} is invoked when the camera button is
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* long-pressed.
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*
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* It is declared in {@code AndroidManifest.xml} to receive the
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* {@code android.intent.action.CAMERA_BUTTON} intent.
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*
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* After making sure we can use the camera hardware, it starts the Camera
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* activity.
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*/
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public class CameraButtonIntentReceiver extends BroadcastReceiver {
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@Override
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public void onReceive(Context context, Intent intent) {
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// Try to get the camera hardware
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CameraHolder holder = CameraHolder.instance();
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ComboPreferences pref = new ComboPreferences(context);
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int cameraId = CameraSettings.readPreferredCameraId(pref);
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if (holder.tryOpen(cameraId) == null) return;
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// We are going to launch the camera, so hold the camera for later use
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holder.keep();
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holder.release();
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Intent i = new Intent(Intent.ACTION_MAIN);
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i.setClass(context, Camera.class);
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i.addCategory(Intent.CATEGORY_LAUNCHER);
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i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
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| Intent.FLAG_ACTIVITY_CLEAR_TOP);
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context.startActivity(i);
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}
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}
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