将URL和标题传递给WebView

Question

mainactivity.java

public class MainActivity extends Activity {

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

}

private void populateListView() {
    String[] str={"Google","yahoo", "bing"};
    ArrayAdapter<String>adapter=new ArrayAdapter<String>(this, R.layout.textview,str);
    ListView list=(ListView)findViewById(R.id.listviewone);
    adapter.notifyDataSetChanged();
    list.setAdapter(adapter);


}
private void clickEvent() {
    final ListView list=(ListView)findViewById(R.id.listviewone);   

    list.setOnItemClickListener(new AdapterView.OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {
             view.setSelected(true); 
            switch( position )
            {
               case 0:   Intent newActivity0 = new Intent(MainActivity.this, Mywebpage.class);     
                         startActivity(newActivity0);   
                         break;

            }              
        }

    });
}

MyWebPage.java

public class Mywebpage extends Activity {
    public void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        setContentView(R.layout.webviewpage);
        WebView wbView = (WebView) findViewById(R.id.WebView);
        wbView.getSettings().setJavaScriptEnabled(true); 
        wbView.loadUrl("http://www.google.com");
    }
}

Answer 1

要将标题和url发送到webview类，请将intent extra传递给webview类，即。将开关用例改写为

Intent newActivity0 = new Intent(MainActivity.this, Mywebpage.class);
newActivity0.putExtra("title", str[position]);
switch (position) {
    case 0:
        newActivity0.putExtra("url", "http://www.google.com");
        break;
    case 1:
        newActivity0.putExtra("url", "http://www.yahoo.com");
        break;
    case 2:
        newActivity0.putExtra("url", "http://www.bing.com");
        break;
}

startActivity(newActivity0);

并定义

 String[] str={"Google","yahoo", "bing"};

作为类变量，而不是PopulateListView方法。

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.webviewpage);

    Bundle extras = getIntent().getExtras();
    String title, url;

    if (extras != null) {
        title = extras.getString("title");
        url = extras.getString("url");

        WebView wbView = (WebView) findViewById(R.id.WebView);
        wbView.getSettings().setJavaScriptEnabled(true);
        wbView.loadUrl(url);
    } //rest code

<uses-permission android:name="android.permission.INTERNET"></uses-permission>