android平台手電筒開發源代碼，AndroidManifest.xml文件的入口是startapp，這個文件沒上傳上來，大家可以自己寫。
1. [代碼]android
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/**
* name : 手電筒主界面
* author : ycgpp@126.com
* date : 2012-12-21 15:50:17
*/
package
com.android.app;
import
android.app.Activity;
import
android.hardware.Camera;
import
android.hardware.Camera.Parameters;
import
android.os.Bundle;
import
android.view.View;
import
android.widget.TextView;
import
android.widget.Toast;
public
class
Main
extends
Activity {
private
boolean
isopent =
false
;
private
Camera camera;
@Override
protected
void
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(
new
View.OnClickListener() {
@Override
public
void
onClick(View v) {
// TODO Auto-generated method stub
if
(!isopent) {
Toast.makeText(getApplicationContext(),
"您已經打開了手電筒"
,
0
)
.show();
camera = Camera.open();
Parameters params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_TORCH);
camera.setParameters(params);
camera.startPreview();
// 開始亮燈
isopent =
true
;
}
else
{
Toast.makeText(getApplicationContext(),
"關閉了手電筒"
,
Toast.LENGTH_SHORT).show();
camera.stopPreview();
// 關掉亮燈
camera.release();
// 關掉照相機
isopent =
false
;
}
}
});
}
}
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2. [代碼]布局文件代碼
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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>
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3. [代碼]AndroidManifest.xml文件 悅德財富：https://www.yuedecaifu.com
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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>
<!-- 攝像頭、手電筒 -->
<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>
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