我有一个活动，其中有一个按钮。 当我按一下按钮它重定向我的图片库。 我想用的形象图，显示在未来的活动所选择的图像。 但它不显示图像。 该视图是关闭时的画面图像被设置。
我对接下来的选择图像和运动上的代码如下。 我使用没有历史在我的活动真。
@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();
if (!(picturePath.equals(""))) {
Intent intent = new Intent();
intent.setClass(MainActivity.this, ImageInGellary.class);
intent.putExtra("picturePath", picturePath);
startActivity(intent);
}
}
}
public class ImageInGellary extends Activity {
Button cancel;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.load_image);
cancel = (Button) findViewById(R.id.buttonCancelPicture);
Intent in = getIntent();
savedInstanceState = in.getExtras();
String picturePath = savedInstanceState.getString("picturePath");
ImageView imageView = (ImageView) findViewById(R.id.img_view);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
cancel.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);
*/
Intent intent = new Intent();
intent.setClass(ImageInGellary.this, MainActivity.class);
startActivity(intent);
}
});
}
}
Answer 1:
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));
}
}
}
Answer 2:
如果你想实现它的1号线，那么所有你需要做的是：
Picasso.with(MainActivity.this).load(data.getData()).noPlaceholder().centerCrop().fit().into((ImageView) findViewById(R.id.imageView1));
完整的解决方案： -
选择图片
public void pickImage() {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE);
}
加载图像
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
//Get ImageURi and load with help of picasso
//Uri selectedImageURI = data.getData();
Picasso.with(MainActivity1.this).load(data.getData()).noPlaceholder().centerCrop().fit()
.into((ImageView) findViewById(R.id.imageView1));
}
}
}
在你的情况，你需要ImageURI传递到下一个活动
Uri selectedImageURI = data.getData();
Answer 3:
public void onClick(View view) {
Intent gallery = new Intent(Intent.ACTION_GET_CONTENT);
gallery.setType("image/*");
startActivityForResult(gallery, 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){
Uri imageUri = data.getData();
imgView.setImageURI(imageUri);
}
}
Answer 4:
如果实在不行，下面的代码将工作：
import java.io.FileDescriptor;
import java.io.IOException;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.ParcelFileDescriptor;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class ImageGalleryDemoActivity extends Activity {
private static int RESULT_LOAD_IMAGE = 1;
/** Called when the activity is first created. */
@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);
Bitmap bmp = null;
try {
bmp = getBitmapFromUri(selectedImage);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
imageView.setImageBitmap(bmp);
}
}
private Bitmap getBitmapFromUri(Uri uri) throws IOException {
ParcelFileDescriptor parcelFileDescriptor =
getContentResolver().openFileDescriptor(uri, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
Bitmap image = BitmapFactory.decodeFileDescriptor(fileDescriptor);
parcelFileDescriptor.close();
return image;
}
}
Answer 5:
我已经解决了你的问题。 图像拾取后，图像的Uri转换为字符串，并在你的第二类，转换您的字符串返回到图像。
http://whats-online.info/science-and-tutorials/95/Android-get-image-from-gallery-into-imageview-programmatically/
http://whats-online.info/science-and-tutorials/49/Android-passing-multiple-data-from-one-activity-to-another/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(requestCode) {
case SELECT_PHOTO:
if(resultCode == RESULT_OK){
Uri selectedImage = data.getData();
if(selectedImage !=null){
Intent intent=new Intent(MainActivity.this, Activity2.class);
Bundle extras = new Bundle();
extras.putString("image", selectedImage.toString());
intent.putExtras(extras);
startActivity(intent);
}
}
}
Activity2.class
Bundle extras = getIntent().getExtras();
String name = extras.getString("image");
Uri imageFinal=Uri.parse(name);
文章来源: How to load an image in image view from gallery?
