Android Open Source - camera Camera Activity

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From Project

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License

The source code is released under:

Apache License

Java Source Code

package org.yanzi.activity;
/*from  w ww .  j  a  v a  2  s. com*/
import org.yanzi.camera.CameraInterface;
import org.yanzi.camera.CameraInterface.CamOpenOverCallback;
import org.yanzi.camera.preview.CameraTextureView;
import org.yanzi.playcamera_v2.R;
import org.yanzi.util.DisplayUtil;

import android.app.Activity;
import android.graphics.Point;
import android.graphics.SurfaceTexture;
import android.os.Bundle;
import android.view.Menu;
import android.view.SurfaceHolder;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.ImageButton;

public class CameraActivity extends Activity implements CamOpenOverCallback {
  private static final String TAG = "yanzi";
  CameraTextureView textureView = null;
  ImageButton shutterBtn;
  float previewRate = -1f;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Thread openThread = new Thread() {
      @Override
      public void run() {
        // TODO Auto-generated method stub
        CameraInterface.getInstance().doOpenCamera(CameraActivity.this);
      }
    };
    openThread.start();
    setContentView(R.layout.activity_camera);
    initUI();
    initViewParams();
    textureView.setAlpha(1.0f);

    shutterBtn.setOnClickListener(new BtnListeners());
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.camera, menu);
    return true;
  }

  private void initUI() {
    textureView = (CameraTextureView) findViewById(R.id.camera_textureview);
    shutterBtn = (ImageButton) findViewById(R.id.btn_shutter);
  }

  private void initViewParams() {
    LayoutParams params = textureView.getLayoutParams();
    Point p = DisplayUtil.getScreenMetrics(this);
    params.width = p.x;
    params.height = p.y;
    previewRate = DisplayUtil.getScreenRate(this); // ??????????????
    textureView.setLayoutParams(params);

    // ???????????ImageButton?????120dip??120dip,????????64??64
    LayoutParams p2 = shutterBtn.getLayoutParams();
    p2.width = DisplayUtil.dip2px(this, 80);
    p2.height = DisplayUtil.dip2px(this, 80);
    ;
    shutterBtn.setLayoutParams(p2);

  }

  @Override
  public void cameraHasOpened() {
    // TODO Auto-generated method stub
    SurfaceTexture surface = textureView._getSurfaceTexture();
    CameraInterface.getInstance().doStartPreview(surface, previewRate);
  }

  private class BtnListeners implements OnClickListener {

    @Override
    public void onClick(View v) {
      // TODO Auto-generated method stub
      switch (v.getId()) {
      case R.id.btn_shutter:
        CameraInterface.getInstance().doTakePicture();
        break;
      default:
        break;
      }
    }

  }

}

Java Source Code List

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