在Android中通过摄像头拍摄照片
我正在使用下面的代码单击按钮上的照片在Android中通过摄像头拍摄照片,android,android-camera,android-camera-intent,Android,Android Camera,Android Camera Intent,我正在使用下面的代码单击按钮上的照片 package com.example.clickpic; import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import android.app.Activity; import android.content.Intent; import android.graphics.
package com.example.clickpic;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends Activity {
int TAKE_PHOTO_CODE = 0;
public static int count=0;
private ImageView imageView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//here,we are making a folder named picFolder to store pics taken by the camera using this application
final String dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/picFolder/";
File newdir = new File(dir);
newdir.mkdirs();
this.imageView = (ImageView)this.findViewById(R.id.imageView1);
Button capture = (Button) findViewById(R.id.btnCapture);
capture.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// here,counter will be incremented each time,and the picture taken by camera will be stored as 1.jpg,2.jpg and likewise.
count++;
String file = dir+count+".jpg";
File newfile = new File(file);
try {
newfile.createNewFile();
} catch (IOException e) {}
Uri outputFileUri = Uri.fromFile(newfile);
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 1888);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1888 && resultCode == RESULT_OK) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
imageView.setImageBitmap(photo);
}
}
}
代码运行得非常好,但它只是打开了摄影机活动。我必须怎么做才能在按钮点击时,它点击一张图片并保存它
现在,这只是打开手机的摄像头应用程序,希望我点击图片并点击OK。我不要这些东西
我想要的是,当我在我的应用程序中点击按钮时,它应该点击一张图片,而不需要我的任何额外输入
编辑
我已经尝试创建自己的相机应用程序,但遇到了一些问题。
这就是为什么我要尝试这种方法 我想要的是,当我从我的应用程序中单击按钮时,它应该会单击一张图片,而不需要我的任何其他输入。- 它不是通过像android.provider.MediaStore.ACTION\u IMAGE\u CAPTURE这样的摄像机意图来实现的。您必须在代码中实现摄像头接口部分,而不使用设备的本机摄像头应用程序
看看的部分,我已经编写了一个camera类,它可以拍照、安排方向(一些设备默认水平拍照)并保存拍摄的照片。您可以通过以下链接进行检查: 编辑:抱歉,我的示例中没有编写savePhoto函数。现在添加它们 保存照片功能:
public void savePhoto(Bitmap bmp) {
imageFileFolder = new File(Environment.getExternalStorageDirectory(),
cc.getDirectoryName());
imageFileFolder.mkdir();
FileOutputStream out = null;
Calendar c = Calendar.getInstance();
String date = fromInt(c.get(Calendar.MONTH))
+ fromInt(c.get(Calendar.DAY_OF_MONTH))
+ fromInt(c.get(Calendar.YEAR))
+ fromInt(c.get(Calendar.HOUR_OF_DAY))
+ fromInt(c.get(Calendar.MINUTE))
+ fromInt(c.get(Calendar.SECOND));
imageFileName = new File(imageFileFolder, date.toString() + ".jpg");
try {
out = new FileOutputStream(imageFileName);
bmp.compress(Bitmap.CompressFormat.JPEG, 70, out);
out.flush();
out.close();
scanPhoto(imageFileName.toString());
out = null;
} catch (Exception e) {
e.printStackTrace();
}
}
public void scanPhoto(final String imageFileName) {
geniusPath = imageFileName;
msConn = new MediaScannerConnection(MyClass.this,
new MediaScannerConnectionClient() {
public void onMediaScannerConnected() {
msConn.scanFile(imageFileName, null);
}
@Override
public void onScanCompleted(String path, Uri uri) {
msConn.disconnect();
}
});
msConn.connect();
}
扫描照片功能:
public void savePhoto(Bitmap bmp) {
imageFileFolder = new File(Environment.getExternalStorageDirectory(),
cc.getDirectoryName());
imageFileFolder.mkdir();
FileOutputStream out = null;
Calendar c = Calendar.getInstance();
String date = fromInt(c.get(Calendar.MONTH))
+ fromInt(c.get(Calendar.DAY_OF_MONTH))
+ fromInt(c.get(Calendar.YEAR))
+ fromInt(c.get(Calendar.HOUR_OF_DAY))
+ fromInt(c.get(Calendar.MINUTE))
+ fromInt(c.get(Calendar.SECOND));
imageFileName = new File(imageFileFolder, date.toString() + ".jpg");
try {
out = new FileOutputStream(imageFileName);
bmp.compress(Bitmap.CompressFormat.JPEG, 70, out);
out.flush();
out.close();
scanPhoto(imageFileName.toString());
out = null;
} catch (Exception e) {
e.printStackTrace();
}
}
public void scanPhoto(final String imageFileName) {
geniusPath = imageFileName;
msConn = new MediaScannerConnection(MyClass.this,
new MediaScannerConnectionClient() {
public void onMediaScannerConnected() {
msConn.scanFile(imageFileName, null);
}
@Override
public void onScanCompleted(String path, Uri uri) {
msConn.disconnect();
}
});
msConn.connect();
}
SavePhotoTask类:
class SavePhotoTask extends AsyncTask<byte[], String, String> {
@Override
protected String doInBackground(byte[]... jpeg) {
File photo = new File(Environment.getExternalStorageDirectory(),
"photo.jpg");
if (photo.exists()) {
photo.delete();
}
try {
FileOutputStream fos = new FileOutputStream(photo.getPath());
fos.write(jpeg[0]);
fos.close();
} catch (java.io.IOException e) {
}
return (null);
}
}
class SavePhotoTask扩展了AsyncTask{
@凌驾
受保护的字符串doInBackground(字节[]…jpeg){
File photo=新文件(Environment.getExternalStorageDirectory(),
“photo.jpg”);
if(photo.exists()){
photo.delete();
}
试一试{
FileOutputStream fos=新的FileOutputStream(photo.getPath());
fos.write(jpeg[0]);
fos.close();
}捕获(java.io.ioe异常){
}
返回(空);
}
}
然后考虑创建你自己的相机Actuvii。但我遇到了一些问题。请帮我解决这个问题我也试过。。但我遇到了一些问题stackoverflow.com/questions/22625904/…。请帮我解决这个问题。这篇文章可能也会有帮助,只需按照文章中给出的说明操作,你就一定能够构建你的相机应用程序。