WebView loadDataWithbaseURL java.lang.NullPointerException

Question

//. . .

public class MainActivity extends Activity {

    //. . .

    @Override
    protected void onCreate( Bundle savedInstanceState ) {
        //. . .
        mainActivityProcedure ( );
    }

    //. . .

    public static void mainActivityProcedure ( ) {
        //. . .
        AnotherActivity.anotherActivityProcedure ( ) ;
        SomeActivity.someActivityProcedure ( );
        //. . .
    }

    //. . .

}

//. . .

public class SomeActivity extends Activity {

    //. . .

    @Override
    protected void onCreate( Bundle savedInstanceState ) {
        //. . .
        someWebView = ( WebView ) findViewById ( R.id.someWebView );
        //. . .
    }

    //. . .

    public static void someActivityProcedure ( ) {
        //. . .
        try {
            someWebView.loadDataWithBaseURL ( null , someHTMLCode, mimeType, encoding, null );
    catch ( Exception e ) {
        Log.i("SomeActivity", "someWebView loadDataBaseURL () " + e.toString() );
    }
        //. . .
    }

    //. . .
}

//. . .

public class AnotherActivity extends Activity {

    //. . .

    @Override
    protected void onCreate ( Bundle savedInstanceState ) {
        //. . .
        anotherWebView = ( WebView ) findViewById ( R . id.anotherWebView ) ;
        //. . .
    }

    //. . .

    public static void anotherActivityProcedure ( ) {
        //. . .
        anotherWebView . loadDataWithBaseURL ( null, anotherHTMLCode, mimeType, encoding, null ) ;
        //. . .
    }
}

当anotherActivityProcedure调用时，AnotherActivity总是加载另一个HTMLMode。 SomeActivity加载someHTMLCode，除非mainActivityProcedure从MainActivity.onCreate调用。 someWebView或SomeActivity出了什么问题？ 我不能把原始代码放在这里。

添加：loadDataWithBaseURL（）中的Replacin` null无法修复它。 添加：Logcat显示消息java.lang.NullPointerException，它将Log.i（）放入catch。

Answer 1

试试这个，在MainActivity中启动SomeActivity并使用你可以访问的_someactivity对象。

SomeActivity _someactivity = new SomeActivity();
_someactivity.someActivityProcedure ();