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webview日期選擇器在Android模擬器中工作,但不在設備上?

[英]webview date picker works in android emulator but not on device?

我已經使用這里發布的代碼示例從javascript調用日期選擇器 ,這在android模擬器中工作正常。 當我在Web視圖中單擊日期輸入框時,會出現android日期選擇器,我可以選擇它。

但是,當我在我的設備上測試它時,我只是得到一個標准的文本輸入字段,就好像該方法沒有被調用一樣。 有沒有人有什么建議? 我使用的完整代碼是:

public class MainActivity extends ActionBarActivity {

  public  WebView mWebView;

    @Override
    protected void onCreate (Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mWebView = (WebView) findViewById(R.id.activity_main_webview);
    WebSettings webSettings = mWebView.getSettings();
    webSettings.setJavaScriptEnabled(true);

    final MyJavaScriptInterface myJavaScriptInterface = new MyJavaScriptInterface(this);
    mWebView.addJavascriptInterface(myJavaScriptInterface, "MyJavaScriptInterface");

    mWebView.loadUrl("http:// mywebsite.html");
}

    // Classe de prise en charge du java privé
    public class MyJavaScriptInterface {
        public String m_szTagId;

        Context mContext;

        MyJavaScriptInterface(Context c) {
            mContext = c;
        }

        public void openDatePickerDialog(String szTagId) {
            m_szTagId = szTagId;
            Calendar c = Calendar.getInstance();
            DatePickerDialog dp = new DatePickerDialog(mContext, new OnDateSetListener() {
                public void onDateSet(DatePicker view, int year,
                                      int monthOfYear, int dayOfMonth) {
                    String szDate = String.format("%04d/%02d/%02d", year, monthOfYear + 1, dayOfMonth);
                    mWebView.loadUrl("javascript:callFromActivity_RetDate(\"" + m_szTagId + "\", \"" + szDate + "\")");
                }
            }, c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH));
            dp.show();
        }

    } // Class MyJavaScriptInterface


    @Override
    public boolean onCreateOptionsMenu (Menu menu){
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
}

    @Override
    public boolean onOptionsItemSelected (MenuItem item){
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}
}

和Javascript代碼是:

 // ---- date picker to call methods of the android device $('#datepicker').click(function(e){ getDataDate(); }); function getDataDate(){ MSSAndroidFunction.openDatePickerDialog('datepicker'); } function callFromActivity_RetDate(datepicker, data) { document.subHours.datepicker.value = data; } 

您已將JavaScript接口命名為MyJavaScriptInterface ,因此必須從JavaScript調用它。

即:

您必須在JavaScript方法中執行MyJavaScriptInterface.openDatePickerDialog('datepicker') MSSAndroidFunction.openDatePickerDialog('datepicker') ,而不是MSSAndroidFunction.openDatePickerDialog('datepicker') MyJavaScriptInterface.openDatePickerDialog('datepicker')

我有一個基於WebView的應用程序,在其中我在另一個類中定義接口,而不是內部類,並在初始化中我做:

htmlInterface=new HTMLInterface(this, webView);
webView.addJavascriptInterface(htmlInterface, "Android");

希望它能幫到你
問候

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