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android調用係統拍照程序和從圖庫選取圖片，返回後調用係統裁剪工具
調用係統拍照
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File myImageDir = new File(TEMP_TAKE_PHOTO_FILE_PATH);
//創建圖片保存目錄
if (!myImageDir.exists())
{
Mylog.d(THIS, "Create the path:" + TEMP_TAKE_PHOTO_FILE_PATH);
myImageDir.mkdirs();
}
//根據時間來命名
imagFile = File.createTempFile(""+System.currentTimeMillis(), ".jpg",myImageDir);
tmpuri = Uri.fromFile(imagFile);
i.putExtra(MediaStore.EXTRA_OUTPUT, tmpuri);
startActivityForResult(i, TAKE_PHOTO_REQUEST_CODE);
從圖庫選擇圖片
Intent innerIntent = new Intent(Intent.ACTION_GET_CONTENT); // "android.intent.action.GET_CONTENT"
innerIntent.setType("image/*"); // 查看類型
// StringIMAGE_UNSPECIFIED="image/*";詳細的類型在com.google.android.mms.ContentType中
Intent wrapperIntent = Intent.createChooser(innerIntent, null);
act.startActivityForResult(wrapperIntent, SELECT_PHOTO_REQUEST_CODE);
返回後接收並調用係統裁剪工具
@Override
protected void onActivityResult(int requestCode, int resultCode,
Intent intent) {
if (requestCode == MediaHelper.TAKE_PHOTO_REQUEST_CODE || requestCode == MediaHelper.SELECT_PHOTO_REQUEST_CODE) {
if (resultCode == RESULT_OK ) {
Uri uri = null;
if(requestCode == MediaHelper.SELECT_PHOTO_REQUEST_CODE) {
uri = intent.getData();
}else if(requestCode == MediaHelper.TAKE_PHOTO_REQUEST_CODE) {
uri = MediaHelper.tmpuri;
}
if (uri != null) {
final Intent intent1 = new Intent("com.android.camera.action.CROP");
intent1.setDataAndType(uri, "image/*");
intent1.putExtra("crop", "true");
intent1.putExtra("aspectX", 1);
intent1.putExtra("aspectY", 1);
intent1.putExtra("outputX", 132);
intent1.putExtra("outputY", 132);
intent1.putExtra("return-data", true);
startActivityForResult(intent1, MediaHelper.CUT_PHOTO_REQUEST_CODE);
}
}
else if(requestCode == MediaHelper.CUT_PHOTO_REQUEST_CODE) {
if (resultCode == RESULT_OK && intent != null) {
bm= intent.getParcelableExtra("data");
}
}
}
在裁剪圖片時，遇到有些圖片不能按照某一指定的比例進行裁剪，查看了源碼後才知道：係統的裁剪圖片默認對圖片進行人臉識別，當識別到有人臉時，會按aspectX和aspectY為1來處理，如果想設置成自定義的裁剪比例，需要設置noFaceDetection為true。
即iintent.putExtra("noFaceDetection", true); 取消人臉識別功能。
最後更新：2017-04-04 07:03:49