android webview从图库上传,但不是从摄像头上传代码丢失可能是由于以下几个原因导致的:
对于android webview从图库上传的具体实现,可以参考以下步骤:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
private static final int REQUEST_SELECT_IMAGE = 1;
private void selectImageFromGallery() {
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, REQUEST_SELECT_IMAGE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_SELECT_IMAGE && resultCode == RESULT_OK && data != null) {
Uri selectedImageUri = data.getData();
String imagePath = getRealPathFromUri(selectedImageUri);
// 将imagePath传递给上传代码进行处理
uploadImage(imagePath);
}
}
private String getRealPathFromUri(Uri uri) {
String[] projection = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String path = cursor.getString(columnIndex);
cursor.close();
return path;
}
private void uploadImage(String imagePath) {
File file = new File(imagePath);
RequestBody requestBody = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("image", file.getName(), RequestBody.create(MediaType.parse("image/*"), file))
.build();
Request request = new Request.Builder()
.url("http://your-upload-url.com")
.post(requestBody)
.build();
OkHttpClient client = new OkHttpClient();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
// 处理上传失败的逻辑
}
@Override
public void onResponse(Call call, Response response) throws IOException {
// 处理上传成功的逻辑
}
});
}
这是一个简单的android webview从图库上传的示例代码,你可以根据自己的需求进行修改和扩展。关于android webview的更多信息和使用方法,你可以参考腾讯云的移动开发相关产品和文档,例如腾讯云移动开发平台(https://cloud.tencent.com/product/mps)和腾讯云移动推送(https://cloud.tencent.com/product/tpns)。
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