Android获取图片路径

Question

我用这个例子来获取图像路径.当我获得小图像路径时,每件事情都可以,但是当我想要获得巨大的图像路径时,我的应用程序就会粉碎.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图库并选择图片:

        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,位于com.example.murager.httpclientapp的android.provider.DocumentsContract.getDocumentId(DocumentsContract.java:629). classes.RealPathUtil.getRealPathFromURI_API19(RealPathUtil.java:19)com.example.murager.httpclientapp.activities.MainActivity.onActivityResult(MainActivity.java:98)at android.app.Activity.dispatchActivityResult(Activity.java:5456)at android Android.app.ActivityThread上android.app.ActivityThread.access $ 1300(ActivityThread.java:151)的android.app.ActivityThread.handleSendResult(ActivityThread.java:3596)上的.app.ActivityThread.deliverResults(ActivityThread.java:3549) $ H.handleMessage(ActivityThread.java:1369)位于android.app.AtoT.Thread.main上的android.os.Handler.dispatchMessage(Handler.java:110)android.os.Looper.loop(Looper.java:193)处.(ActivityThread.java) :5292)at java.lang.reflect.Method.invokeNative(Native Method)at java.lang.reflect.Method.invoke(Method.java:515)at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit) .java:824)at dalvik.system.NativeStart.main(Native Method)中的com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)java:5292)at java.lang.reflect.Method.invokeNative(Native Method)at java.lang.reflect.Method.invoke(Method.java:515)at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run( ZygoteInit.java:824)at dalvik.system.NativeStart.main(Native Method)中的com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)java:5292)at java.lang.reflect.Method.invokeNative(Native Method)at java.lang.reflect.Method.invoke(Method.java:515)at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run( ZygoteInit.java:824)at dalvik.system.NativeStart.main(Native Method)中的com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)

Answer 1

使用此类在onActivityResult中获取图像路径

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棒棒糖还是高于或低于棒棒糖,并根据它给出图像路径.检查它是否适用于您的情况.

你可以像这样使用这个类.

 @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());

    }
}

我希望它有所帮助!