Android 从图库中获取选定的图像到 imageview
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get selected image from gallery into imageview
提问by amanjain4all
I am facing a problem in selecting the image from a gallery and setting it into the imageview. Suppose I have two activities; mainActivitycontaining buttons for gallery and secondactivitycontaining the imageviewin which the image has to be displayed.
我在从图库中选择图像并将其设置为imageview. 假设我有两个活动；mainActivity含按钮画廊和secondactivity包含imageview在其中的图像必须被显示。
b1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(
Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
Please give me the individual code for both....
请给我两者的单独代码....
回答by Hamad
here is the code to load an image from gallery:
这是从图库加载图像的代码：
public class ImageGalleryDemoActivity extends Activity {
private static int RESULT_LOAD_IMAGE = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button buttonLoadImage = (Button) findViewById(R.id.buttonLoadPicture);
buttonLoadImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
ImageView imageView = (ImageView) findViewById(R.id.imgView);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
}
}
回答by Hitesh Sahu
with Picassoit can be done in single line and You dont need to make cursor query
用Picasso它可以在一行中完成，你不需要化妆cursor query
I have extended it for better understanding :-
我已经扩展它以便更好地理解：-
Pick Image
选择图像
public void pickImage() {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE);
}
Load Image
加载图片
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
Uri selectedImageURI = data.getData();
Picasso.with(MainActivity1.this).load(selectedImageURI).noPlaceholder().centerCrop().fit()
.into((ImageView) findViewById(R.id.imageView1));
}
}
}
回答by human
In my case work this solution
在我的情况下工作这个解决方案
private void OpenGallery(){
Intent getImageIntent = new Intent(Intent.ACTION_GET_CONTENT);
getImageIntent .setType("image/*");
startActivityForResult(getImageIntent , IMAGE_PICKER );
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode== IMAGE_PICKER && resultCode == RESULT_OK) {
Uri fullPhotoUri = data.getData();
imageView.setImageURI(fullPhotoUri);
}
}
You can share URI using putExtra("fullPhotoUri", fullPhotoUri.toString()) between activities.
您可以在活动之间使用 putExtra("fullPhotoUri", fullPhotoUri.toString()) 共享 URI。
回答by Hariharan
Try this.
尝试这个。
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
ImageView imageView = (ImageView) findViewById(R.id.imgView);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
}
Here some examples
这里有一些例子
http://viralpatel.net/blogs/pick-image-from-galary-android-app/
http://viralpatel.net/blogs/pick-image-from-galary-android-app/
回答by Muhammad Sheharyar
To Pick Image from gallery, use this code.
要从图库中选择图像，请使用此代码。
btn_imageSetter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), IMAGE_PICKER);
}
});
Now use this Method to Set the image to the ImageViewer
现在使用此方法将图像设置为 ImageViewer
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == IMAGE_PICKER && resultCode == RESULT_OK && null != data) {
try{
final Uri uriImage = data.getData();
final InputStream inputStream = getContentResolver().openInputStream(uriImage);
final Bitmap imageMap = BitmapFactory.decodeStream(inputStream);
iv_image.setImageBitmap(imageMap);
}
catch (FileNotFoundException e) {
e.printStackTrace();
Toast.makeText(context, "Image was not found", Toast.LENGTH_SHORT).show();
}
}
}
