Question

我正在制作一个应用程序，点击按钮上的照片

我有camera.java操作相机并拍照

如何在下面的活动中调用它？

public void onClick（DialogInterface arg0，int arg1）{

的setContentView（R.layout.startcamera）;

相机.java

package neuro.com;

import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException;

import android.app.Activity; import android.hardware.Camera; import android.hardware.Camera.PictureCallback; import android.hardware.Camera.ShutterCallback; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.FrameLayout;

公共类CameraDemo扩展Activity { private static final String TAG =“CameraDemo”; 相机相机; 预览预览; 按钮按钮;

/** 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）; //或者写信给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”）; } };

}

Answer 1

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();
    // ...
  }
}

如何在cick事件中访问camera.java？

1 个答案: