对不起要问愚蠢的问题。但它解决了我的me.please帮助我尝试了stackoverflow上的所有代码并遵循其他教程但它根本没有帮助。我正在从galary中获取图像并转换为base64它完美地工作当在相机上拍摄图像但为什么它不工作时我不知道请帮帮我。（
这是选择图像的代码
private void selectImage() {
final CharSequence[] items = { "Take Photo", "Choose from Library",
"Cancel" };
AlertDialog.Builder builder = new AlertDialog.Builder(TestFragment.this);
builder.setTitle("Add Photo!");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
boolean result= Utility.checkPermission(TestFragment.this);
if (items[item].equals("Take Photo")) {
userChoosenTask ="Take Photo";
if(result)
cameraIntent();
} else if (items[item].equals("Choose from Library")) {
userChoosenTask ="Choose from Library";
if(result)
galleryIntent();
} else if (items[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
在此之后
private void galleryIntent()
{
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);//
startActivityForResult(Intent.createChooser(intent, "Select File"),SELECT_FILE);
}
private void cameraIntent()
{
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_CAMERA);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
if (requestCode == SELECT_FILE)
onSelectFromGalleryResult(data);
else if (requestCode == REQUEST_CAMERA)
onCaptureImageResult(data);
}
}
private void onCaptureImageResult(Intent data) {
bitmap = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
File destination = new File(Environment.getExternalStorageDirectory(),
System.currentTimeMillis() + ".jpg");
FileOutputStream fo;
try {
destination.createNewFile();
fo = new FileOutputStream(destination);
fo.write(bytes.toByteArray());
fo.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
imgvcomp.setImageBitmap(bitmap);
String img=getStringImage(bitmap);
Log.v(TAG,"base64"+img);//perfectly string base64 to image
}
@SuppressWarnings("deprecation")
private void onSelectFromGalleryResult(Intent data) {
if (data != null) {
try {
bitmap = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), data.getData());
} catch (IOException e) {
e.printStackTrace();
}
}
imgvcomp.setImageBitmap(bitmap);
String img=getStringImage(bitmap);
Log.v(TAG,"base64"+img);//checking in log base64 string to image cropeed image found
}
public String getStringImage(Bitmap bmp){
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 90, baos);
byte[] imageBytes = baos.toByteArray();
String encodedImage = Base64.encodeToString(imageBytes, Base64.DEFAULT);
return encodedImage;
}
private void showToastMessage(String message) {
Log.v(TAG, String.format("showToastMessage :: message = %s", message));
// Toast.makeText(getApplicationContext(), message, Toast.LENGTH_LONG).show();
}
为什么我从galary中选择后找到裁剪后的图像？错误日志中没有错误，这里是logcat
E/DynamiteModule: Failed to load module descriptor class: Didn't find class "com.google.android.gms.dynamite.descriptors.com.google.firebase.auth.ModuleDescriptor" on path: DexPathList[[zip file "/data/app/
W/FlurryAgent: Flurry session paused for
1 and remote module com.google.android.gms.tagmanager:8
Selected remote version of com.google.android.gms.tagmanager, version >= 8
No container asset found in /assets/containers. Checking top level /assets directory for container assets.
Tag Manager's event handler WILL NOT be installed (no container loaded)
Tag Manager initilization took 274ms
Using measurement service
Connecting to remote service
Connected to remote service
Processing queued up service tasks: 1
Suspending all threads took: 25.809ms
V/help: /9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAMCAgMCAgMDAwMEAwMEBQgFBQQEBQoHBwYIDAoMDAsK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答案 0 :(得分：3)
您可以使用以下代码：
public static String encodeTobase64(Bitmap image) {
Bitmap immagex=image;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
immagex.compress(Bitmap.CompressFormat.JPEG, 100, baos);
byte[] b = baos.toByteArray();
String imageEncoded = Base64.encodeToString(b,Base64.DEFAULT);
Log.e("LOOK", imageEncoded);
return imageEncoded;
}
在onActivityResult（）
中使用以下代码 InputStream imageStream = null;
try {
imageStream = this.getContentResolver().openInputStream(selectedImage);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
Bitmap yourSelectedImage = BitmapFactory.decodeStream(imageStream);
encodeTobase64(yourSelectedImage);
答案 1 :(得分：1)
这就是我在我的画廊意图的onActivityResult上的表现。
String imagePath = ImageUtil.getRealPathFromURI(getActivity(), data.getData());
然后将整个事物转换为位图。
Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
这是来自ImageUtil Class的getRealPathFromURI方法。
public static String getRealPathFromURI(Context context, Uri contentURI) {
String result = null;
String[] projection = {MediaStore.Images.Media.DATA};
try {
Cursor cursor = context.getContentResolver().query(contentURI, projection, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(projection[0]);
result = cursor.getString(columnIndex);
cursor.close();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
这是我从位图到base64的转换。
public static String getBase64(Bitmap bitmap) {
if (bitmap != null) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
return Base64.encodeToString(baos.toByteArray(), Base64.DEFAULT);
}
return null;
}
答案 2 :(得分：1)
试试这个......
public String getStringImage(Bitmap bmp){
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos);
byte[] imageBytes = baos.toByteArray();
String encodedImage = Base64.encodeToString(imageBytes, Base64.DEFAULT);
return encodedImage;
}
答案 3 :(得分：1)
这是一个类似的代码。我在我的应用程序中实现了相同的功能。您可以从图库或相机中选择图像，您可以将其转换为基础64.试试这个适用于我。希望它也适合你
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ResolveInfo;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.design.widget.TextInputLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Base64;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import in.invis.organickerala.utilities.CropOption;
import in.invis.organickerala.R;
public class Profile_Activity extends AppCompatActivity {
private static final int PICK_FROM_CAMERA = 1;
private static final int CROP_FROM_CAMERA = 2;
private static final int PICK_FROM_FILE = 3;
final String[] items = new String[]{"Take From Camera", "Select From Gallery"};
ImageView picture;
AlertDialog.Builder builder;
ArrayAdapter<String> adapter;
private AccountManager mAccountManager;
private int PICK_IMAGE_REQUEST = 1;
private SharedPreferences mPreferences, myPrefs;
private SharedPreferences.Editor myPrefsEdit;
private Uri mImageCaptureUri;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile);
adapter = new ArrayAdapter<String>(this, android.R.layout.select_dialog_item, items);
builder = new AlertDialog.Builder(this);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
// Show the Up button in the action bar.
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setTitle("Profile");
}
// Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
// setSupportActionBar(toolbar);
// getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mPreferences = getSharedPreferences("CurrentUser", MODE_PRIVATE);
myPrefs = getSharedPreferences("URI", MODE_PRIVATE);
myPrefsEdit = myPrefs.edit();
picture = (ImageView) findViewById(R.id.picture);
picture.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
builder.setTitle("Select Image");
builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) { //pick from camera
if (item == 0) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
mImageCaptureUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(),
"tmp_avatar_" + String.valueOf(System.currentTimeMillis()) + ".jpg"));
intent.putExtra(MediaStore.EXTRA_OUTPUT, mImageCaptureUri);
try {
intent.putExtra("return-data", true);
startActivityForResult(intent, PICK_FROM_CAMERA);
} catch (ActivityNotFoundException e) {
e.printStackTrace();
}
} else { //pick from file
Intent intent = new Intent();
intent.setType("Image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_FILE);
}
}
});
final AlertDialog dialog = builder.create();
picture.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog.show();
}
});
//END CAMERA STUFF
}// End OnCreate
});
String temp = myPrefs.getString("url", "defaultString");
try {
byte[] encodeByte = Base64.decode(temp, Base64.DEFAULT);
Bitmap bitmap = BitmapFactory.decodeByteArray(encodeByte, 0, encodeByte.length);
picture.setImageBitmap(bitmap);
} catch (Exception e) {
e.getMessage();
}
}
@Override
public void onBackPressed() {
super.onBackPressed();
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case PICK_FROM_CAMERA:
doCrop();
break;
case PICK_FROM_FILE:
mImageCaptureUri = data.getData();
doCrop();
break;
case CROP_FROM_CAMERA:
Bundle extras = data.getExtras();
if (extras != null) {
Bitmap photo = extras.getParcelable("data");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
photo.compress(Bitmap.CompressFormat.PNG, 100, baos);
byte[] b = baos.toByteArray();
String temp = Base64.encodeToString(b, Base64.DEFAULT);
myPrefsEdit.putString("url", temp);
myPrefsEdit.commit();
picture.setImageBitmap(photo);
}
File f = new File(mImageCaptureUri.getPath());
if (f.exists()) f.delete();
break;
}
}
private void doCrop() {
final ArrayList<CropOption> cropOptions = new ArrayList<CropOption>();
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setType("Image/*");
List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent, 0);
int size = list.size();
if (size == 0) {
Toast.makeText(this, "Can not find Image crop app", Toast.LENGTH_SHORT).show();
return;
} else {
intent.setData(mImageCaptureUri);
intent.putExtra("outputX", 300);
intent.putExtra("outputY", 300);
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("scale", true);
intent.putExtra("return-data", true);
if (size != 0) {
Intent i = new Intent(intent);
ResolveInfo res = list.get(0);
i.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
startActivityForResult(i, CROP_FROM_CAMERA);
}
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// handle arrow click here
if (item.getItemId() == android.R.id.home) {
Intent intent = new Intent(Profile_Activity.this,MainActivity.class);
startActivity(intent);
}
return super.onOptionsItemSelected(item);
}
}