So I have an Android WebView that is designed to navigate m.facebook.com and I am having trouble getting image uploads working. When I click on the upload image button (on facebook in my WebView) nothing happens.
The button I am pressing on the m.facebook.com website is this one:
I have defined my WebChromeClient as follows:
_webview.setWebChromeClient(new WebChromeClient() {
public void openFileChooser( ValueCallback<Uri> uploadMsg, String acceptType ) {
// BREAKPOINT HERE
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
MainActivity.this.startActivityForResult( Intent.createChooser( i, "" ), MainActivity.FILECHOOSER_RESULTCODE );
}
// For Android < 3.0
public void openFileChooser( ValueCallback<Uri> uploadMsg ) {
openFileChooser( uploadMsg, "" );
}
// For Android > 4.1
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture){
openFileChooser( uploadMsg, "" );
}
});
Which I took from Chirag's answer from this previous stack overflow post: Android WebView File Upload
I placed a breakpoint where my "// BREAKPOINT HERE" comment is, and it is never hit, even after pressing the upload photo button on m.facebook.com. I have the READ_EXTERNAL_STORAGE permission set. My minimum api version is 9 and my target is 21.
I also have set a WebViewClient which I define as follows:
private class MyWebViewClient extends WebViewClient {
Activity activity;
public MyWebViewClient(Activity myActivity){
activity = myActivity;
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url){
// This function is never called when I click the upload photo
// button.
// ... Do Stuff
}
public void onLoadResource(WebView view, String url){
// The following if statement's predicate returns false if the
// upload image button is pressed, so it's contents are of no consequence
if(url.startsWith(LINK_STRING)){
// ...
}
}
}
For completeness I have included a portion of my manifest:
<uses-sdk
android:minSdkVersion="9"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<meta-data android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version"/>
<activity android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
android:alwaysRetainTaskState="true"/> <!-- Remove this if this doesn't correct the crashing issue -->
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
My question is this: How can I allow the WebView component upload images from the gallery and camera?
Thank you so much for any help you can offer!
