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解决文件多选问题：支持WebView文件选择器的多选模式 #45

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Merged
Intuit2580 merged 1 commit into from
Jul 23, 2026
Merged

解决文件多选问题：支持WebView文件选择器的多选模式 #45

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34 changes: 28 additions & 6 deletions app/src/main/java/com/huozige/lab/container/webview/HACWebChromeClient.java
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ public class HACWebChromeClient extends WebChromeClient {
ValueCallback<Uri[]> _filePathCallback; // ChromeClient的文件选择器回调

ActivityResultLauncher<String> _contentChooser; // 选择文件的调用器
ActivityResultLauncher<String[]> _multiFileChooser; // 多选文件的调用器
ActivityResultLauncher<Intent> _imageCaptureChooser; // 拍摄照片的调用器

static final int REQUEST_CODE_PICK_PHOTO_VIDEO = 20001; // 选取照片和视频的标识
Expand Down Expand Up @@ -164,6 +165,8 @@ public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathC

_filePathCallback = filePathCallback; // 将参数缓存起来，回调使用

boolean isMultiSelect = fileChooserParams.getMode() == WebChromeClient.FileChooserParams.MODE_OPEN_MULTIPLE;

if (Arrays.asList(fileChooserParams.getAcceptTypes()).contains("video/*") || Arrays.asList(fileChooserParams.getAcceptTypes()).contains("image/*")) {

// 需要调用摄像头，则先申请权限
Expand All @@ -174,7 +177,7 @@ public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathC

if (Arrays.asList(fileChooserParams.getAcceptTypes()).contains("image/*")) {

// 兼容活字格官方Vant插件，支持“直接调出摄像头拍照上传”功能
// 兼容活字格官方Vant插件，支持"直接调出摄像头拍照上传"功能
if (fileChooserParams.isCaptureEnabled()) {

Intent cameraIntent = new Intent(this._context, CameraViewActivity.class);
Expand All @@ -188,7 +191,7 @@ public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathC
.capture(true)
.captureStrategy(//参数1 true表示拍照存储在共有目录，false表示存储在私有目录；参数2与 AndroidManifest中authorities值相同，用于适配7.0系统 必须设置
new CaptureStrategy(true, "com.huozige.lab.container"))
.maxSelectable(1)
.maxSelectable(isMultiSelect ? 99 : 1)
.thumbnailScale(0.85f)
.imageEngine(new GlideEngine())
.forResult(REQUEST_CODE_PICK_PHOTO_VIDEO);
Expand All @@ -202,16 +205,20 @@ public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathC
.capture(true)
.captureStrategy(//参数1 true表示拍照存储在共有目录，false表示存储在私有目录；参数2与 AndroidManifest中authorities值相同，用于适配7.0系统 必须设置
new CaptureStrategy(true, "com.huozige.lab.container"))
.maxSelectable(1)
.maxSelectable(isMultiSelect ? 99 : 1)
.thumbnailScale(0.85f)
.imageEngine(new GlideEngine())
.forResult(REQUEST_CODE_PICK_PHOTO_VIDEO);
}
});
} else {

// 直接使用系统文件选择机制
_contentChooser.launch("*/*");
// 根据多选模式选择不同的文件选择器
if (isMultiSelect) {
_multiFileChooser.launch(new String[]{"*/*"});
} else {
_contentChooser.launch("*/*");
}
}

// 标记为已经处理
Expand Down Expand Up @@ -241,7 +248,7 @@ public void registryLaunchersOnCreated() {
_filePathCallback.onReceiveValue(selectedFiles.toArray(new Uri[0]));
});

// 创建文件选择页面启动器
// 创建文件选择页面启动器（单选）
_contentChooser = _context.registerForActivityResult(new ActivityResultContracts.GetContent(),
uri -> {

Expand All @@ -256,6 +263,21 @@ public void registryLaunchersOnCreated() {
// 让页面接手处理，每一个ChooseFile都需要有配套的onReceiveValue事件
_filePathCallback.onReceiveValue(selectedFiles.toArray(new Uri[0]));
});

// 创建多选文件选择页面启动器
_multiFileChooser = _context.registerForActivityResult(new ActivityResultContracts.OpenMultipleDocuments(),
uris -> {
List<Uri> selectedFiles = new ArrayList<>();

if (uris != null) {
for (Uri uri : uris) {
selectedFiles.add(uri);
DeviceUtility.registryLatestFile(uri);
}
}

_filePathCallback.onReceiveValue(selectedFiles.toArray(new Uri[0]));
});
}

/**
Expand Down