Android - Choose File button in WebView
I\'m having a problem where I\'ve got a page loaded in WebView - I\'m not going to post code for the entire application, because my problem is very specific: the \"Choose Fi
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The Accepted Answers is not working for me. I found new answer from Google Chromium Samples.
public class WebViewActivity extends AppCompatActivity { ActivityWebviewBinding binding; public static final int INPUT_FILE_REQUEST_CODE = 1; private ProgressDialog progressDialog; private ValueCallback<Uri[]> mFilePathCallback; private String mCameraPhotoPath; @SuppressLint("SetJavaScriptEnabled") @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); binding = DataBindingUtil.setContentView(this, R.layout.activity_webview); setSupportActionBar(binding.toolbar); if (getSupportActionBar() != null) { getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setTitle(getString(R.string.button_register_now)); } progressDialog = new ProgressDialog(WebViewActivity.this); progressDialog.setMessage("Loading..."); progressDialog.show(); WebSettings webSettings = binding.webView.getSettings(); webSettings.setJavaScriptEnabled(true); webSettings.setSupportZoom(true); webSettings.setBuiltInZoomControls(true); webSettings.setDisplayZoomControls(false); webSettings.setAllowFileAccess(true); webSettings.setLoadWithOverviewMode(true); webSettings.setUseWideViewPort(true); binding.webView.setWebViewClient(new WebViewClient() { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { final Uri uri = Uri.parse(url); return handleUri(uri); } @TargetApi(Build.VERSION_CODES.N) @Override public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) { final Uri uri = request.getUrl(); return handleUri(uri); } private boolean handleUri(final Uri uri) { if (uri != null) { Log.i("TAG", "Uri =" + uri); // Based on some condition you need to determine if you are going to load the url // in your web view itself or in a browser. // You can use `host` or `scheme` or any part of the `uri` to decide. if (uri.getLastPathSegment() != null) { if (uri.getLastPathSegment().contains("p1_business_part1.php")) { finish(); startActivity(new Intent(WebViewActivity.this, LoginActivity.class)); return false; } } else { binding.webView.loadUrl(uri.toString()); return true; } } return false; } @Override public void onPageFinished(WebView view, String url) { if (progressDialog.isShowing()) { progressDialog.dismiss(); } } @Override public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { Toast.makeText(WebViewActivity.this, "Error:" + description, Toast.LENGTH_SHORT).show(); view.loadUrl("about:blank"); } }); binding.webView.setWebChromeClient(new WebChromeClient() { public boolean onShowFileChooser( WebView webView, ValueCallback<Uri[]> filePathCallback, WebChromeClient.FileChooserParams fileChooserParams) { if (mFilePathCallback != null) { mFilePathCallback.onReceiveValue(null); } mFilePathCallback = filePathCallback; Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); if (takePictureIntent.resolveActivity(getPackageManager()) != null) { // Create the File where the photo should go File photoFile = null; try { photoFile = createImageFile(); takePictureIntent.putExtra("PhotoPath", mCameraPhotoPath); } catch (IOException ex) { // Error occurred while creating the File Log.e("TAG", "Unable to create Image File", ex); } // Continue only if the File was successfully created if (photoFile != null) { mCameraPhotoPath = "file:" + photoFile.getAbsolutePath(); takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile)); } else { takePictureIntent = null; } } Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT); contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE); contentSelectionIntent.setType("image/*"); Intent[] intentArray; if (takePictureIntent != null) { intentArray = new Intent[]{takePictureIntent}; } else { intentArray = new Intent[0]; } Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER); chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent); chooserIntent.putExtra(Intent.EXTRA_TITLE, "Image Chooser"); chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray); startActivityForResult(chooserIntent, INPUT_FILE_REQUEST_CODE); return true; } }); binding.webView.loadUrl("your_url"); } /** * More info this method can be found at * http://developer.android.com/training/camera/photobasics.html * * @return * @throws IOException */ private File createImageFile() throws IOException { // Create an image file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(new Date()); String imageFileName = "JPEG_" + timeStamp + "_"; File storageDir = Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES); return File.createTempFile( imageFileName, /* prefix */ ".jpg", /* suffix */ storageDir /* directory */ ); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode != INPUT_FILE_REQUEST_CODE || mFilePathCallback == null) { super.onActivityResult(requestCode, resultCode, data); return; } Uri[] results = null; // Check that the response is a good one if (resultCode == Activity.RESULT_OK) { if (data == null) { // If there is not data, then we may have taken a photo if (mCameraPhotoPath != null) { results = new Uri[]{Uri.parse(mCameraPhotoPath)}; } } else { String dataString = data.getDataString(); if (dataString != null) { results = new Uri[]{Uri.parse(dataString)}; } } } mFilePathCallback.onReceiveValue(results); mFilePathCallback = null; } @Override public void onBackPressed() { // TODO Auto-generated method stub if (binding.webView.canGoBack()) { binding.webView.goBack(); } else { super.onBackPressed(); } } @Override public boolean onOptionsItemSelected(@NonNull MenuItem item) { finish(); return super.onOptionsItemSelected(item); } }Hope it will helps others.
Thank you.
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Webview - Single & Multiple files Select
build.gradle
implementation 'com.github.angads25:filepicker:1.1.1'java code:
import android.annotation.SuppressLint; import android.app.Activity; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageManager; import android.graphics.Bitmap; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.support.annotation.NonNull; import android.util.Log; import android.view.KeyEvent; import android.view.View; import android.webkit.ValueCallback; import android.webkit.WebChromeClient; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.ProgressBar; import android.widget.Toast; import com.bivoiclient.utils.Constants; import com.github.angads25.filepicker.controller.DialogSelectionListener; import com.github.angads25.filepicker.model.DialogConfigs; import com.github.angads25.filepicker.model.DialogProperties; import com.github.angads25.filepicker.view.FilePickerDialog; import java.io.File; public class WebBrowserScreen extends Activity { private WebView webView; private ValueCallback<Uri[]> mUploadMessage; private FilePickerDialog dialog; private String LOG_TAG = "DREG"; private Uri[] results; @SuppressLint("SetJavaScriptEnabled") @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_complain); webView = findViewById(R.id.webview); WebSettings webSettings = webView.getSettings(); webSettings.setAppCacheEnabled(true); webSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK); webSettings.setJavaScriptEnabled(true); webSettings.setLoadWithOverviewMode(true); webSettings.setAllowFileAccess(true); webView.setWebViewClient(new PQClient()); webView.setWebChromeClient(new PQChromeClient()); if (Build.VERSION.SDK_INT >= 19) { webView.setLayerType(View.LAYER_TYPE_HARDWARE, null); } else { webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null); } webView.loadUrl(YOUR_WEBVIEW_URL); } private void openFileSelectionDialog() { if (null != dialog && dialog.isShowing()) { dialog.dismiss(); } //Create a DialogProperties object. final DialogProperties properties = new DialogProperties(); //Instantiate FilePickerDialog with Context and DialogProperties. dialog = new FilePickerDialog(WebBrowserScreen.this, properties); dialog.setTitle("Select a File"); dialog.setPositiveBtnName("Select"); dialog.setNegativeBtnName("Cancel"); properties.selection_mode = DialogConfigs.MULTI_MODE; // for multiple files // properties.selection_mode = DialogConfigs.SINGLE_MODE; // for single file properties.selection_type = DialogConfigs.FILE_SELECT; //Method handle selected files. dialog.setDialogSelectionListener(new DialogSelectionListener() { @Override public void onSelectedFilePaths(String[] files) { results = new Uri[files.length]; for (int i = 0; i < files.length; i++) { String filePath = new File(files[i]).getAbsolutePath(); if (!filePath.startsWith("file://")) { filePath = "file://" + filePath; } results[i] = Uri.parse(filePath); Log.d(LOG_TAG, "file path: " + filePath); Log.d(LOG_TAG, "file uri: " + String.valueOf(results[i])); } mUploadMessage.onReceiveValue(results); mUploadMessage = null; } }); dialog.setOnCancelListener(new DialogInterface.OnCancelListener() { @Override public void onCancel(DialogInterface dialogInterface) { if (null != mUploadMessage) { if (null != results && results.length >= 1) { mUploadMessage.onReceiveValue(results); } else { mUploadMessage.onReceiveValue(null); } } mUploadMessage = null; } }); dialog.setOnDismissListener(new DialogInterface.OnDismissListener() { @Override public void onDismiss(DialogInterface dialogInterface) { if (null != mUploadMessage) { if (null != results && results.length >= 1) { mUploadMessage.onReceiveValue(results); } else { mUploadMessage.onReceiveValue(null); } } mUploadMessage = null; } }); dialog.show(); } public class PQChromeClient extends WebChromeClient { @Override public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, FileChooserParams fileChooserParams) { // Double check that we don't have any existing callbacks if (mUploadMessage != null) { mUploadMessage.onReceiveValue(null); } mUploadMessage = filePathCallback; openFileSelectionDialog(); return true; } } //Add this method to show Dialog when the required permission has been granted to the app. @Override public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) { switch (requestCode) { case FilePickerDialog.EXTERNAL_READ_PERMISSION_GRANT: { if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { if (dialog != null) { openFileSelectionDialog(); } } else { //Permission has not been granted. Notify the user. Toast.makeText(WebBrowserScreen.this, "Permission is Required for getting list of files", Toast.LENGTH_SHORT).show(); } } } } public boolean onKeyDown(int keyCode, KeyEvent event) { // Check if the key event was the Back button and if there's history if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) { webView.goBack(); return true; } // If it wasn't the Back key or there's no web page history, bubble up to the default // system behavior (probably exit the activity) return super.onKeyDown(keyCode, event); } public class PQClient extends WebViewClient { ProgressBar progressDialog; public boolean shouldOverrideUrlLoading(WebView view, String url) { // If url contains mailto link then open Mail Intent if (url.contains("mailto:")) { // Could be cleverer and use a regex //Open links in new browser view.getContext().startActivity( new Intent(Intent.ACTION_VIEW, Uri.parse(url))); // Here we can open new activity return true; } else { // Stay within this webview and load url view.loadUrl(url); return true; } } // Show loader on url load public void onPageStarted(WebView view, String url, Bitmap favicon) { // Then show progress Dialog // in standard case YourActivity.this if (progressDialog == null) { progressDialog = findViewById(R.id.progressBar); progressDialog.setVisibility(View.VISIBLE); } } // Called when all page resources loaded public void onPageFinished(WebView view, String url) { webView.loadUrl("javascript:(function(){ " + "document.getElementById('android-app').style.display='none';})()"); try { // Close progressDialog progressDialog.setVisibility(View.GONE); } catch (Exception exception) { exception.printStackTrace(); } } } }讨论(0) -
set
WebChromeClientfor Choose FileCODE
import android.app.AlertDialog; import android.content.Context; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.View; import android.webkit.JavascriptInterface; import android.webkit.ValueCallback; import android.webkit.WebChromeClient; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.ProgressBar; import android.widget.Toast; import org.apache.http.util.EncodingUtils; public class BrowserScreen extends Activity { private WebView webView; private String url = "url"; private ValueCallback<Uri> mUploadMessage; private final static int FILECHOOSER_RESULTCODE = 1; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.browser_activity); initFields(); setListeners(); } public void initFields() { // TODO Auto-generated method stub webView = (WebView) findViewById(R.id.webView1); webView.getSettings().setJavaScriptEnabled(true); webView.getSettings().setBuiltInZoomControls(true); webView.getSettings().setAllowFileAccess(true); } public void setListeners() { // TODO Auto-generated method stub webView.setWebViewClient(new WebViewClient() { public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { webView.loadUrl("about:blank"); view.clearHistory(); } }); webView.setWebChromeClient(new WebChromeClient() { public void onProgressChanged(WebView view, int progress) { } //The undocumented magic method override //Eclipse will swear at you if you try to put @Override here // For Android 3.0+ public void openFileChooser(ValueCallback<Uri> uploadMsg) { mUploadMessage = uploadMsg; Intent i = new Intent(Intent.ACTION_GET_CONTENT); i.addCategory(Intent.CATEGORY_OPENABLE); i.setType("image/*"); startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE); } // For Android 3.0+ public void openFileChooser(ValueCallback uploadMsg, String acceptType) { mUploadMessage = uploadMsg; Intent i = new Intent(Intent.ACTION_GET_CONTENT); i.addCategory(Intent.CATEGORY_OPENABLE); i.setType("*/*"); startActivityForResult( Intent.createChooser(i, "File Browser"), FILECHOOSER_RESULTCODE); } //For Android 4.1 public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) { mUploadMessage = uploadMsg; Intent i = new Intent(Intent.ACTION_GET_CONTENT); i.addCategory(Intent.CATEGORY_OPENABLE); i.setType("image/*"); startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE); } }); webView.loadUrl(url); final MyJavaScriptInterface myJavaScriptInterface = new MyJavaScriptInterface(this); webView.addJavascriptInterface(myJavaScriptInterface, "AndroidFunction"); } @Override public void onBackPressed() { // TODO Auto-generated method stub if (webView.canGoBack() == true) { webView.goBack(); } else { super.onBackPressed(); } } public class MyJavaScriptInterface { Context mContext; MyJavaScriptInterface(Context c) { mContext = c; } @JavascriptInterface public void showToast(String toast) { Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show(); // webView.loadUrl("javascript:document.getElementById(\"Button3\").innerHTML = \"bye\";"); } @JavascriptInterface public void openAndroidDialog() { AlertDialog.Builder myDialog = new AlertDialog.Builder(BrowserScreen.this); myDialog.setTitle("DANGER!"); myDialog.setMessage("You can do what you want!"); myDialog.setPositiveButton("ON", null); myDialog.show(); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent intent) { if (requestCode == FILECHOOSER_RESULTCODE) { if (null == mUploadMessage) return; Uri result = intent == null || resultCode != RESULT_OK ? null : intent.getData(); mUploadMessage.onReceiveValue(result); mUploadMessage = null; } } }讨论(0)
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