调用系统相机和图库，裁剪图片

private static final int PHOTO_REQUEST_TAKEPHOTO = 1;// 拍照
private static final int PHOTO_REQUEST_GALLERY = 2;// 从相册中选择
private static final int PHOTO_REQUEST_CUT = 3;// 结果
private File tempFile = new File(Environment.getExternalStorageDirectory(),
getPhotoFileName());

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case PHOTO_REQUEST_TAKEPHOTO:// 当选择拍照时调用
startPhotoZoom(Uri.fromFile(tempFile));
break;
case PHOTO_REQUEST_GALLERY:// 当选择从本地获取图片时
// 做非空判断，当我们觉得不满意想重新剪裁的时候便不会报异常，下同
if (data != null) {
System.out.println("11================");
startPhotoZoom(data.getData());
} else {
System.out.println("================");
}
break;
case PHOTO_REQUEST_CUT:// 返回的结果
if (data != null)
// setPicToView(data);
sentPicToNext(data);
break;
}
super.onActivityResult(requestCode, resultCode, data);
}

// 使用系统当前日期加以调整作为照片的名称
private String getPhotoFileName() {
Date date = new Date(System.currentTimeMillis());
SimpleDateFormat dateFormat = new SimpleDateFormat(
"'IMG'_yyyyMMdd_HHmmss");
return dateFormat.format(date) + ".jpg";
}

Intent cameraintent = new Intent(
MediaStore.ACTION_IMAGE_CAPTURE);
// 指定调用相机拍照后照片的储存路径
cameraintent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(tempFile));
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rtActivityForResult(cameraintent,
PHOTO_REQUEST_TAKEPHOTO);

Intent getAlbum = new Intent(Intent.ACTION_GET_CONTENT);
getAlbum.setType("image/*");
startActivityForResult(getAlbum, PHOTO_REQUEST_GALLERY);

private void startPhotoZoom(Uri uri) {
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(uri, "image/*");
// crop为true是设置在开启的intent中设置显示的view可以剪裁
intent.putExtra("crop", "true");

// aspectX aspectY 是宽高的比例
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);

// outputX,outputY 是剪裁图片的宽高
intent.putExtra("outputX", 300);
intent.putExtra("outputY", 300);
intent.putExtra("return-data", true);
intent.putExtra("noFaceDetection", true);
System.out.println("22================");
startActivityForResult(intent, PHOTO_REQUEST_CUT);
}

mDialog = new AlertDialog.Builder(this, R.style.FullScreenDialog)
.create();
if (mDialog != null && !mDialog.isShowing()) {
mDialog.show();
mDialog.setContentView(R.layout.dialog_select_imge);
mDialog.setCanceledOnTouchOutside(false);
}

<style name="FullScreenDialog" parent="android:style/Theme.Dialog">
<item name="android:windowNoTitle">true</item>
<item name="android:windowFrame">@null</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowIsTranslucent">false</item>
<item name="android:background">@android:color/transparent</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:backgroundDimEnabled">true</item>
</style>