我正在尝试拍摄照片,当用户单击按钮时,我想将照片保存到内部存储器。我将在没有SD卡的平板电脑上进行测试。我也是在android上拍摄照片的新手,并且网络无法找到需要将特定代码写入除sd卡以外的其他代码的帮助。这是我的camera.java的样子。拍摄照片并将其存储到内部存储器
package com.test;
import com.test.R;
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;
public class camera extends Activity
{
private static final String TAG = "CameraDemo";
Camera camera;
Preview preview;
Button buttonClick;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.camera);
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 = camera.this.openFileOutput(String.format("%d.jpg", System.currentTimeMillis()), 0);
// Or write to sdcard
//outStream = new FileOutputStream(String.format("/sdcard/%d.jpg", System.currentTimeMillis()));
outStream.write(data);
outStream.close();
Log.d(TAG, "onPictureTaken - wrote bytes: " + data.length);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
}
Log.d(TAG, "onPictureTaken - jpeg");
}
};
}
仅供参考,大多数不支持可移动外部存储的设备仍然有一个“外部存储”分配在可通过api调用找到的焊接闪存中。尽管可能有例外,并且确实存在依赖于可能不存在的可移动卡的设备的情况,以及存储分区对于应用程序不可用的情况,因为它正被连接到可远程访问PC。 –