Android获取图片路径

Question

我使用this 示例来获取图像路径。当我得到小图像路径时，一切都很好，但是当我想要获得巨大的图像路径时，我的应用程序会崩溃。我不知道为什么会发生这种情况，因为我不使用 ImageView 来显示所选路径中的图像。

我的代码在这里打开画廊并选择图片：

        selectImgBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
            intent.setType("image/*");
            startActivityForResult(intent, 0);
            //urlTV.setText(getMainPath());
        }
    });

第二个显示路径：

    @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    if (resultCode == Activity.RESULT_OK && data != null){
        String realPath;
        if (Build.VERSION.SDK_INT < 19){
            realPath = RealPathUtil.getRealPathFromURI_API11to18(this, data.getData());
        } else {
            realPath = RealPathUtil.getRealPathFromURI_API19(this, data.getData());
        }

        setMainPath(realPath);
        /*setFile(realPath);
        setToTextViews(Build.VERSION.SDK_INT, data.getData().getPath(), realPath);*/

        urlTV.setText(getMainPath());

    }
}

谢谢！

• 引起：java.lang.IllegalArgumentException：不是文档：content://media/external/images/media/32257 在 android.provider.DocumentsContract.getDocumentId(DocumentsContract.java:629) 在 com.example.murager.httpclientapp.classes.RealPathUtil.getRealPathFromURI_API19(RealPathUtil.java:19) 在 com.example.murager.httpclientapp.activities.MainActivity.onActivityResult(MainActivity.java:98) 在 android.app.Activity.dispatchActivityResult(Activity.java:5456) 在 android.app.ActivityThread.deliverResults(ActivityThread.java:3549) 在 android.app.ActivityThread.handleSendResult(ActivityThread.java:3596) 在 android.app.ActivityThread.access$1300(ActivityThread.java:151) 在 android.app.ActivityThread$H.handleMessage(ActivityThread.java:1369) 在 android.os.Handler.dispatchMessage(Handler.java:110) 在 android.os.Looper.loop(Looper.java:193) 在 android.app.ActivityThread.main(ActivityThread.java:5292) 在 java.lang.reflect.Method.invokeNative(Native Method) 在 java.lang.reflect.Method.invoke(Method.java:515) 在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824) 在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640) 在 dalvik.system.NativeStart.main(Native Method)

Answer 1

使用该类获取onActivityResult中的图片路径

public final class GetFilePathFromDevice {

    /**
     * Get file path from URI
     *
     * @param context context of Activity
     * @param uri     uri of file
     * @return path of given URI
     */
    public static String getPath(final Context context, final Uri uri) {
        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
        // 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 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 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 getDataColumn(context, contentUri, selection, selectionArgs);
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {
            // Return the remote address
            if (isGooglePhotosUri(uri))
                return uri.getLastPathSegment();
            return getDataColumn(context, uri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }
        return null;
    }

    public 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 index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    public static boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }
}

它自动检查设备操作系统是否是棒棒糖或高于或低于棒棒糖，并根据它给出图像路径。检查它是否适用于您的情况。

你可以这样使用这个类。

 @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == Activity.RESULT_OK && data != null){
        String realPath = GetFilePathFromDevice.getPath(this, data.getData());
        setMainPath(realPath);
        urlTV.setText(getMainPath());

    }
}

希望对你有帮助！

Answer 2

错误是由于 API 级别。您使用的代码仅与特定 API 级别兼容。试试这个。

if (Build.VERSION.SDK_INT <19){
Intent intent = new Intent(); 
intent.setType("image/jpeg");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,
getResources().getString(R.string.select_picture)),GALLERY_INTENT_CALLED);
}else{
     Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
     intent.addCategory(Intent.CATEGORY_OPENABLE);
     intent.setType("image/jpeg");
     startActivityForResult(intent, GALLERY_KITKAT_INTENT_CALLED);
}


@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode != Activity.RESULT_OK) return;
if (null == data) return;
Uri originalUri = null;
if (requestCode == GALLERY_INTENT_CALLED) {
    originalUri = data.getData();
} else if (requestCode == GALLERY_KITKAT_INTENT_CALLED) {
    originalUri = data.getData();
    final int takeFlags = data.getFlags()
            & (Intent.FLAG_GRANT_READ_URI_PERMISSION
            | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
    // Check for the freshest data.
    getContentResolver().takePersistableUriPermission(originalUri, takeFlags);
}
loadSomeStreamAsynkTask(originalUri);

}