android平台手电筒开发源代码



android平台手电筒开发源代码，AndroidManifest.xml文件的入口是startapp，这个文件没上传上来，大家可以自己写。

标签： Android

代码片段(3)

1. [代码]android     

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/**

 * name   : 手电筒主界面

 * author : [e-mail]

 * date    : 2012-12-21 15:50:17

 */

packagecom.android.app;

 

importandroid.app.Activity;

importandroid.hardware.Camera;

importandroid.hardware.Camera.Parameters;

importandroid.os.Bundle;

importandroid.view.View;

importandroid.widget.TextView;

importandroid.widget.Toast;

 

publicclass Main extendsActivity {

 

    privateboolean isopent = false;

    privateCamera camera;

 

    @Override

    protectedvoid onCreate(Bundle savedInstanceState) {

        // TODO Auto-generated method stub

        super.onCreate(savedInstanceState);

        View view = View.inflate(this, R.layout.main, null);

        setContentView(view);

        TextView img_but = (TextView) findViewById(R.id.main_img);

 

        img_but.setOnClickListener(newView.OnClickListener() {

 

            @Override

            publicvoid onClick(View v) {

                // TODO Auto-generated method stub

                if(!isopent) {

                    Toast.makeText(getApplicationContext(),"您已经打开了手电筒",0)

                            .show();

                    camera = Camera.open();

                    Parameters params = camera.getParameters();

                    params.setFlashMode(Parameters.FLASH_MODE_TORCH);

                    camera.setParameters(params);

                    camera.startPreview();// 开始亮灯

 

                    isopent = true;

                }else{

                    Toast.makeText(getApplicationContext(),"关闭了手电筒",

                            Toast.LENGTH_SHORT).show();

                    camera.stopPreview();// 关掉亮灯

                    camera.release();// 关掉照相机

                    isopent = false;

                }

            }

        });

    }

 

}

2. [代码]布局文件代码     

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<?xml version="1.0"encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">

 

    <TextView

        android:id="@+id/main_img"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:background="@drawable/main_body">

    </TextView>

 

</LinearLayout>

3. [代码]AndroidManifest.xml文件     跳至 [1] [2] [3] [全屏预览]

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.android.app"

    android:versionCode="1"

    android:versionName="1.0">

 

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="15"/>

 

    <application

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme">

        <activity android:name=".AppStart">

            <intent-filter>

                <action android:name="android.intent.action.MAIN"/>

 

                <category android:name="android.intent.category.LAUNCHER"/>

            </intent-filter>

        </activity>

        <activity android:name=".Main">

        </activity>

    </application>

    <!-- 摄像头、手电筒 -->

    <uses-permission android:name="android.permission.CAMERA"/>

    <uses-permission android:name="android.permission.FLASHLIGHT"/>

 

    <uses-feature android:name="android.hardware.camera"/>

    <uses-feature android:name="android.hardware.camera.autofocus"/>

    <uses-feature android:name="android.hardware.camera.flash"/>

 

</manifest>