e_23_2-MyCamera.zip_android_android 相机

package com.example.android.mycamera; import java.io.FileOutputStream; import java.io.IOException; import android.app.Activity; import android.hardware.Camera; import android.os.Bundle; import android.util.Log; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.widget.ImageButton; public class MyCamera extends Activity { private static final String TAG = "MyCamera"; final int latchedOrientation = 90; private Camera mCamera; // Create surface for preview private SurfaceHolder.Callback mSurfaceListener = new SurfaceHolder.Callback() { // Surface create public void surfaceCreated(SurfaceHolder holder) { mCamera = Camera.open(); Log.i(TAG, "Camera opened"); try { mCamera.setPreviewDisplay(holder); } catch (Exception e) { e.printStackTrace(); } } // Surface destroy public void surfaceDestroyed(SurfaceHolder holder) { mCamera.release(); mCamera = null; Log.i(TAG, "Camera released"); } // Surface change public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { Camera.Parameters parameters = mCamera.getParameters(); //parameters.setPreviewSize(width, height); //parameters.setPictureFormat(PixelFormat.JPEG); parameters.set("jpeg-quality", 85); //parameters.setRotation(latchedOrientation); mCamera.setParameters(parameters); mCamera.startPreview(); Log.i(TAG, "Camera preview started"); Log.i(TAG, "width : " + width + " , height : " + height); } }; // Auto focus to take a photo private Camera.AutoFocusCallback mAutoFocusListener = new Camera.AutoFocusCallback() { public void onAutoFocus(boolean success, final Camera camera) { Log.i(TAG,"AutoFocus : " + success); camera.autoFocus(null); camera.takePicture(mShutterListener, null, mPictureListener); new Thread() { @Override public void run() { try { Thread.sleep(3000); } catch (InterruptedException e) { e.printStackTrace(); } camera.startPreview(); } }.start(); } }; // Listener for Shut process private Camera.ShutterCallback mShutterListener = new Camera.ShutterCallback() { public void onShutter() { Log.i(TAG, "onShutter"); } }; // Listener for Picture process private Camera.PictureCallback mPictureListener = new Camera.PictureCallback() { public void onPictureTaken(byte[] data, Camera camera) { Log.i(TAG, "Picture taken"); FileOutputStream fos = null; try { fos = new FileOutputStream("/sdcard/MyCamera.jpg"); fos.write(data); } catch (IOException e) { e.printStackTrace(); } finally { if (fos != null) { try { fos.close(); } catch (IOException e) { e.printStackTrace(); } } } } }; // Press Camera photo button private View.OnClickListener mButtonListener = new View.OnClickListener() { public void onClick(View v) { //if(mCamera != null && mInProgress == false){ if(mCamera != null){ mCamera.autoFocus(mAutoFocusListener); } } }; // Called when the activity is first created. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Window win = getWindow(); //No Status Bar win.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); //No Title Bar requestWindowFeature(Window.FEATURE_NO_TITLE); requestWindowFeature(Window.FEATURE_PROGRESS); setContentView(R.layout.main); // Camera preview SurfaceView surface = (SurfaceView)findViewById(R.id.SurfaceView01); SurfaceHolder holder = surface.getHolder(); holder.addCallback(mSurfaceListener); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); // Camera photo button ImageButton button = (ImageButton)findViewById(R.id.ImageButton01); button.setOnClickListener(mButtonListener); } }