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发表于 2011-10-22 19:01:06
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Re:Q
嘿嘿,今天这个问题解决了,即调用系统图库,及照相机,然后再调用切图工具。我把源码分享下,有空可以去我的博客看看关于它的学习笔记哈(http://blog.sina.com.cn/s/blog_6c9bac050100xghu.html)
public class AddCardActivity extends Activity {
public static final int NONE = 0;
public static final int PHOTOHRAPH = 1;// 拍照
public static final int PHOTOZOOM = 2; // 缩放
public static final int PHOTORESOULT = 3;// 结果
//此处设置了调用的Data MINI类型
public static final String IMAGE_UNSPECIFIED = "image/*";
ImageView imageView = null;
Button button0 = null;
Button button1 = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imageView = (ImageView) findViewById(R.id.imageID);
button0 = (Button) findViewById(R.id.btn_01);
button1 = (Button) findViewById(R.id.btn_02);
//给相册按钮设置事件监听
button0.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
/*方法一:
Intent intent = new Intent();
intent.setType("*/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(intent, -1);
*/
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, PHOTOZOOM);
}
});
//给拍照按钮设置事件监听
button1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//声明了intent对象,action为照相功能
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//将照相结果保存
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));
//转会这个activity
startActivityForResult(intent, PHOTOHRAPH);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == NONE)
return;
// 拍照
if (requestCode == PHOTOHRAPH) {
//设置文件保存路径这里放在跟目录下
File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");
startPhotoZoom(Uri.fromFile(picture));
}
if (data == null)
return;
// 读取相册缩放图片
if (requestCode == PHOTOZOOM) {
startPhotoZoom(data.getData());
}
// 处理结果
if (requestCode == PHOTORESOULT) {
Bundle extras = data.getExtras();
if (extras != null) {
Bitmap photo = extras.getParcelable("data");
ByteArrayOutputStream stream = new ByteArrayOutputStream();
photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0 - 100)压缩文件
//此处是为了将切图进行保存在sdcard中(记住声明系统权限啊)
try {
File picture = new File("/sdcard/yyj1234.bmp");
if(!picture.exists())
{
picture.createNewFile();
}
BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(picture));
photo.compress(Bitmap.CompressFormat.PNG, 100, bos);
bos.flush();
bos.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("wuwu,no file");
}catch (Exception e) {
// TODO: handle exception
System.out.println(e.getMessage());
}
imageView.setImageBitmap(photo);
try {
stream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
System.out.println(e.getMessage());
}
}
}
super.onActivityResult(requestCode, resultCode, data);
}
public void startPhotoZoom(Uri uri) {
//此处就是调用了android系统给定的切图功能
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(uri, IMAGE_UNSPECIFIED);
intent.putExtra("crop", "true");
// aspectX aspectY 是宽高的比例
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
// outputX outputY 是裁剪图片宽高
intent.putExtra("outputX", 64);
intent.putExtra("outputY", 64);
intent.putExtra("return-data", true);
startActivityForResult(intent, PHOTORESOULT);
}
} |
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