Andriod 到3.2版本為止，webview方式下使用<input type="file" />點擊后都沒有反應。實際上頂層是有隱含的接口沒實現的，可以自己重寫這個方法來實現。以phonegap為例：
public class App extends DroidGap {
private ValueCallback<Uri> mUploadMessage;
private final static int FILECHOOSER_RESULTCODE = 1;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.init();
// WebView wv = new WebView(this);
// wv.setWebViewClient(new WebViewClient());
this.appView.setWebChromeClient(new CordovaChromeClient(App.this) {
// For Android 3.0+
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/*");
App.this.startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
}
// The undocumented magic method override
// Eclipse will swear at you if you try to put @Override here
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
App.this.startActivityForResult(Intent.createChooser(i, "File Chooser"), App.FILECHOOSER_RESULTCODE);
}
});
// setContentView(wv);
super.loadUrl("file:///android_asset/www/login.html");
}
@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;
}
}
}
如果直接的webview方式，extends WebChromeClient即可。
參考：http://stackoverflow.com/questions/5907369/file-upload-in-webview