http://blog.csdn.net/raphael55/article/details/6838018
package com.android.cist.camera.view;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentResolver;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;
import com.android.cist.R;
import com.android.cist.network.HttpUtil;
import com.android.cist.network.form.FormFile;
import com.android.cist.network.form.HttpFormUtil;
import com.android.cist.util.ApplicationUtil;
import com.android.cist.util.ImageUtil;
public class CameraActivity extends Activity implements OnClickListener{
private ImageView preview;
private EditText carNo;
private EditText addres;
private EditText type;
private Button back;
private Button submit;
private Button capture;
private Button reCapture;
private OnClickListener imgViewListener;
private Bitmap myBitmap;
private byte[] mContent;
private Handler handler;
String returnString;
private CalendarView happenDate;
private static final int REQUEST_CAMERA = 1;
private static final int REQUEST_CALENDAR = 2;
@ Override
public void onCreate ( Bundle savedInstanceState )
{
super.onCreate(savedInstanceState);
setContentView(R.layout.camera);
setUpViews();
setUpListeners();
ApplicationUtil.getInstance().addActivity(this);
}
@ Override
protected void onActivityResult ( int requestCode , int resultCode , Intent data )
{
super.onActivityResult(requestCode, resultCode, data);
ContentResolver resolver = getContentResolver();
/**
* 因為兩種方式都用到了startActivityForResult方法，
* 這個方法執行完后都會執行onActivityResult方法， 所以為了區別到底選擇了那個方式獲取圖片要進行判斷，
* 這里的requestCode跟startActivityForResult里面第二個參數對應
*/
if (requestCode == 0)
{
try
{
// 獲得圖片的uri
Uri originalUri = data.getData();
// 將圖片內容解析成字節數組
mContent = readStream(resolver.openInputStream(Uri.parse(originalUri.toString())));
// 將字節數組轉換為ImageView可調用的Bitmap對象
myBitmap = getPicFromBytes(mContent, null);
// //把得到的圖片綁定在控件上顯示
preview.setImageBitmap(myBitmap);
} catch ( Exception e )
{
System.out.println(e.getMessage());
}
} else if (requestCode == REQUEST_CAMERA){
try
{
super.onActivityResult(requestCode, resultCode, data);
Bundle extras = data.getExtras();
myBitmap = (Bitmap) extras.get("data");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
myBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
mContent = baos.toByteArray();
} catch ( Exception e )
{
e.printStackTrace();
}
// 把得到的圖片綁定在控件上顯示
preview.setImageBitmap(ImageUtil.toRoundCorner(myBitmap, 10));//把拍攝的照片轉成圓角顯示在預覽控件上
}else if(requestCode==REQUEST_CALENDAR){
if(resultCode == RESULT_OK){
happenDate.setCalendar(data.getIntExtra("year", 1900), data.getIntExtra("month", 0), data.getIntExtra("day", 1));
}
}
}
public static Bitmap getPicFromBytes ( byte[] bytes , BitmapFactory.Options opts )
{
if (bytes != null)
if (opts != null)
return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, opts);
else
return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
return null;
}
public static byte[] readStream ( InputStream inStream ) throws Exception
{
byte[] buffer = new byte[1024];
int len = -1;
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
while ((len = inStream.read(buffer)) != -1)
{
outStream.write(buffer, 0, len);
}
byte[] data = outStream.toByteArray();
outStream.close();
inStream.close();
return data;
}
@Override
public void onClick(View v) {
int id = v.getId();
switch(id){
case R.id.capture:{
final CharSequence[] items =
{ "相冊", "拍照" };
AlertDialog dlg = new AlertDialog.Builder(CameraActivity.this).setTitle("選擇圖片").setItems(items,
new DialogInterface.OnClickListener()
{
public void onClick ( DialogInterface dialog , int item )
{
// 這里item是根據選擇的方式，
// 在items數組里面定義了兩種方式，拍照的下標為1所以就調用拍照方法
if (item == 1){
Intent getImageByCamera = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(getImageByCamera, REQUEST_CAMERA);
} else{
Intent getImage = new Intent(Intent.ACTION_GET_CONTENT);
getImage.addCategory(Intent.CATEGORY_OPENABLE);
getImage.setType("image/jpeg");
startActivityForResult(getImage, 0);
}
}
}).create();
dlg.show();
}
break;
/*case R.id.reCapture:{
final CharSequence[] items =
{ "相冊", "拍照" };
AlertDialog dlg = new AlertDialog.Builder(CameraActivity.this).setTitle("選擇圖片").setItems(items,
new DialogInterface.OnClickListener()
{
public void onClick ( DialogInterface dialog , int item )
{
// 這里item是根據選擇的方式，
// 在items數組里面定義了兩種方式，拍照的下標為1所以就調用拍照方法
if (item == 1)
{
Intent getImageByCamera = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(getImageByCamera, 1);
} else
{
Intent getImage = new Intent(Intent.ACTION_GET_CONTENT);
getImage.addCategory(Intent.CATEGORY_OPENABLE);
getImage.setType("image/jpeg");
startActivityForResult(getImage, 0);
}
}
}).create();
dlg.show();
}
break;*/
case R.id.submit:{
new PostThread().start();//開啟線程提交數據
}
break;
case R.id.back:{
CameraActivity.this.finish();//返回，銷毀當前Activity
}
break;
default:
break;
}
}
}