Android WebView内部支持图片上传，调用默认界面，也可能自定义布局文件显示dialog
HTML标签
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="user-scalable=no">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<input id="input" type="file"/>
</body>
</html>
变量名
public static WebView webView;
public ValueCallback<Uri> mUploadMessage;
public static int FILECHOOSER_RESULTCODE = 1;
public Uri imageUri;
第一种，打开图片浏览器
webView.setWebChromeClient(new WebChromeClient() {
// Android > 4.1.1 调用这个方法
public void openFileChooser(ValueCallback<Uri> uploadMsg,
String acceptType, String capture) {
mUploadMessage = uploadMsg;
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
WebMainActivity.this.startActivityForResult(Intent.createChooser(intent, "File Chooser"), FILECHOOSER_RESULTCODE);
}
//扩展浏览器上传文件
//3.0++版本
public void openFileChooser(ValueCallback<Uri> uploadMsg,
String acceptType) {
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
WebMainActivity.this.startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
}
// Android < 3.0 调用这个方法
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
mUploadMessage = uploadMsg;
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
WebMainActivity.this.startActivityForResult(Intent.createChooser(intent, "File Chooser"), FILECHOOSER_RESULTCODE);
}
}
});
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == mUploadMessage) return;
Uri result = data == null || resultCode != RESULT_OK ? null: data.getData();
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
}
第二种，打开图片浏览器跟相机
webView.setWebChromeClient(new WebChromeClient() {
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
mUploadMessage = uploadMsg;
File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "TestApp");
if (!imageStorageDir.exists()) {
imageStorageDir.mkdirs();
}
File file = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
imageUri = Uri.fromFile(file); // save to the private variable
final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
Intent Photo = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
Intent chooserIntent = Intent.createChooser(i, "Image Chooser");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Parcelable[]{captureIntent, Photo});
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
}
// For Android 3.0+
public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
openFileChooser(uploadMsg);
}
// For Android 4.1
public void openFileChooser(ValueCallback<Uri> uploadMsg,
String acceptType, String capture) {
openFileChooser(uploadMsg);
}
// For Android > 5.0
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> uploadMsg, WebChromeClient.FileChooserParams
fileChooserParams) {
openFileChooser(uploadMsg, "");
return true;
}
});
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == this.mUploadMessage) {
return;
}
Uri result;
if (resultCode != Activity.RESULT_OK) {
result = null;
} else {
result = intent == null ? this.imageUri : intent.getData(); // retrieve from the private variable if the intent is null
}
this.mUploadMessage.onReceiveValue(result);
this.mUploadMessage = null;
}
}