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。
1. [代码]android
/**
* name : 手电筒主界面
* 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
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
android:id="@+id/main_img"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/main_body">
3. [代码]AndroidManifest.xml文件
package="com.android.app"
android:versionCode="1"
android:versionName="1.0" >
android:minSdkVersion="8"
android:targetSdkVersion="15" />
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
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