Androidでフォトアルバム画像アップ機能を実現
25434 ワード
アイコンを変更する機能は情報を修正するように直接パラメータを提出すればいいのではなく、画像ファイルをアップロードする必要があるので、私は直接コードを貼ります.まずレイアウトファイルを与えます.
そしてアップロードされたコードです
私はできるだけ説明を注釈に書いて、ここで多く言わないで最後に写真のツール類を貼って、MainActivityが呼び出して私が書かないかもしれない小さい仲間があるためこの報告が間違っているためどのように実体類を処理するか分からない私は書かないで、本当に簡単すぎるためです
id="@+id/iv"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@mipmap/ic_launcher" />
そしてアップロードされたコードです
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private Button btn1, btn2;
private ImageView headIv;
private TextView textView;
private static final String TAG = "MainActivity";
private final int IMAGE_RESULT_CODE = 2;
private final int PICK = 1;
private String url = "";// ，
private String imgString = "";
private Intent intent;
private Handler mHandler = new Handler(Looper.getMainLooper());
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn1 = findViewById(R.id.btn1);
btn2 = findViewById(R.id.btn2);
textView = findViewById(R.id.tv);
headIv = findViewById(R.id.iv);
btn1.setOnClickListener(this);
btn2.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn1:
intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, PICK);
break;
case R.id.btn2:
intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, IMAGE_RESULT_CODE);
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
//
case PICK:
if (resultCode == RESULT_OK) {
Bundle bundle = data.getExtras();
Bitmap bitmap = (Bitmap) bundle.get("data");
imgString = bitmapToBase64(bitmap);
uploadImg();
}
break;
//
case IMAGE_RESULT_CODE:
if (resultCode == RESULT_OK) {
Uri uri = data.getData();
Bitmap bitmap2 = PhotoUtils.getBitmapFromUri(uri, this);
imgString = bitmapToBase64(bitmap2);
uploadImg();
}
break;
}
}
//
public void uploadImg() {
OkHttpClient okHttpClient = new OkHttpClient.Builder().build();
// ， ，
//
//
FormBody body = new FormBody.Builder().add("dir", "c/image")
.add("data", imgString)
.add("file", "headicon")
.add("ext", "jpg").build();
Request request = new Request.Builder().url(url).post(body).build();
okHttpClient.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
final String data = response.body().string();
Gson gson = new Gson();
final Beans bean = gson.fromJson(data, Beans.class);
Log.d(TAG, "onResponse: " + data);
mHandler.post(new Runnable() {
@Override
public void run() {
// Gilde ， ，
//""
Glide.with(MainActivity.this).load(""+bean.getData().getUrl()).into(headIv);
}
});
}
});
}
// 64 ，
public static String bitmapToBase64(Bitmap bitmap) {
String result = null;
ByteArrayOutputStream baos = null;
try {
if (bitmap != null) {
baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
baos.flush();
baos.close();
byte[] bitmapBytes = baos.toByteArray();
result = Base64.encodeToString(bitmapBytes, Base64.DEFAULT);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (baos != null) {
baos.flush();
baos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return result;
}
}私はできるだけ説明を注釈に書いて、ここで多く言わないで最後に写真のツール類を貼って、MainActivityが呼び出して私が書かないかもしれない小さい仲間があるためこの報告が間違っているためどのように実体類を処理するか分からない私は書かないで、本当に簡単すぎるためです
public class PhotoUtils {
private static final String TAG = "PhotoUtils";
/**
* @param activity activity
* @param imageUri
* @param requestCode
*/
public static void takePicture(Activity activity, Uri imageUri, int requestCode) {
//
Intent intentCamera = new Intent();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intentCamera.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); // Uri
}
intentCamera.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
// photo_file Uri ，
intentCamera.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
activity.startActivityForResult(intentCamera, requestCode);
}
/**
* @param activity activity
* @param requestCode
*/
public static void openPic(Activity activity, int requestCode) {
Intent photoPickerIntent = new Intent(Intent.ACTION_GET_CONTENT);
photoPickerIntent.setType("image/*");
activity.startActivityForResult(photoPickerIntent, requestCode);
}
/**
* @param activity activity
* @param orgUri Uri
* @param desUri Uri
* @param aspectX X
* @param aspectY Y
* @param width
* @param height
* @param requestCode
*/
public static void cropImageUri(Activity activity, Uri orgUri, Uri desUri, int aspectX, int aspectY, int width, int height, int requestCode) {
Intent intent = new Intent("com.android.camera.action.CROP");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
intent.setDataAndType(orgUri, "image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", aspectX);
intent.putExtra("aspectY", aspectY);
intent.putExtra("outputX", width);
intent.putExtra("outputY", height);
intent.putExtra("scale", true);
// Uri
intent.putExtra(MediaStore.EXTRA_OUTPUT, desUri);
intent.putExtra("return-data", false);
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true);
activity.startActivityForResult(intent, requestCode);
}
/**
* uri
*
* @param uri Uri
* @param mContext
* @return Bitmap
*/
public static Bitmap getBitmapFromUri(Uri uri, Context mContext) {
try {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(mContext.getContentResolver(), uri);
return bitmap;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* @param context
* @param uri Uri
* @return Uri String
*/
@SuppressLint("NewApi")
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
String pathHead = "file:///";
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return pathHead + Environment.getExternalStorageDirectory() + "/" + split[1];
}
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return pathHead + getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[]{split[1]};
return pathHead + getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
return pathHead + getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return pathHead + uri.getPath();
}
return null;
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
private static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {column};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
private static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
private static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
private static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
}