如何在cick事件中访问camera.java？
我正在制作一个应用程序，该按钮点击按钮上的照片
我有camera.java它操作相机并拍照
如何在下面的事件中调用它？
public void onClick（DialogInterface arg0，int arg1）{
的setContentView（R.layout.startcamera）;
}
相机.java
包neuro.com;
import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException;
导入android.app.Activity; 导入android.hardware.Camera; 导入android.hardware.Camera.PictureCallback; 导入android.hardware.Camera.ShutterCallback; 导入android.os.Bundle; 导入android.util.Log; 导入android.view.View; 导入android.view.View.OnClickListener; 导入android.widget.Button; 导入android.widget.FrameLayout;
public class CameraDemo extends Activity {private static final String TAG =“CameraDemo”; 摄像机; 预览预览; 按钮buttonClick;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.startcamera);
preview = new Preview(this);
((FrameLayout) findViewById(R.id.preview)).addView(preview);
buttonClick = (Button) findViewById(R.id.buttonClick);
buttonClick.setOnClickListener( new OnClickListener() {
public void onClick(View v) {
preview.camera.takePicture(shutterCallback, rawCallback, jpegCallback);
}
});
Log.d(TAG, "onCreate'd");
}
ShutterCallback shutterCallback = new ShutterCallback() {
public void onShutter() {
Log.d(TAG, "onShutter'd");
}
};
/** Handles data for raw picture */
PictureCallback rawCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
Log.d(TAG, "onPictureTaken - raw");
}
};
/** Handles data for jpeg picture */
PictureCallback jpegCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
FileOutputStream outStream = null;
try {
// write to local sandbox file system
// outStream = CameraDemo.this.openFileOutput（String.format（“％d.jpg”，System.currentTimeMillis（）），0）; //或写入sdcard outStream = new FileOutputStream（String.format（“/ sdcard /％d.jpg”，System.currentTimeMillis（）））;
outStream.write（数据）; outStream.close（）; Log.d（TAG，“onPictureTaken - 写入字节：”+ data.length）; } catch（FileNotFoundException e）{e.printStackTrace（）; } catch（IOException e）{e.printStackTrace（）; } finally {} Log.d（TAG，“onPictureTaken-jpeg”）; }};
}
如果你只是想拍照。 我建议你利用意图来实现它。
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(intent, 0);
// ...
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK && requestCode == 0) {
String result = data.toURI();
// ...
}
}