想要使用按钮将数据从一个活动导入另一个活动

Question

Web View活动是：

public class show extends AppCompatActivity {
    WebView myWebView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_show);

        myWebView = (WebView)findViewById(R.id.orderlink);
        myWebView.setWebViewClient(new WebViewClient());

        myWebView.getSettings().setJavaScriptEnabled(true);

        myWebView.getSettings().setBuiltInZoomControls(true);


        WebSettings webSettings = myWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);

        Intent intent = getIntent();
        int restu = intent.getIntExtra("restu", 0);
        // myWebView.loadUrl("https://www.foodmart.com.bd/index.php?Theme=default&Base=Page&Script=MenuPage&id=556");


    switch(restu){

        case 1:
            myWebView.loadUrl("https://www.foodmart.com.bd/index.php?Theme=default&Base=Page&Script=MenuPage&id=556");

        case 2:
            myWebView.loadUrl("https://www.foodpanda.com/");

    }

    }
}

我的主要活动：

   public class MainActivity extends AppCompatActivity {

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

    void Click(View v){
        switch(v.getId()){

            case R.id.order1 :
                Intent p = new Intent(MainActivity.this, show.class);
                p.putExtra("restu",1);
                startActivity(p);
                break;
            case R.id.order2 :
                Intent q = new Intent(MainActivity.this, show.class);
                q.putExtra("restu",2);
                startActivity(q);
        }




    }
}

我想从按钮点击打开不同的网页。问题在哪里请帮助我........................................... .................................................. .................................................. ...............

Answer 1

        public class MainActivity extends AppCompatActivity implements View.OnClickListener  {
        Button b,b2;
            @Override
            protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_main);
                b=(Button)findViewById(R.id.order1); //add with button id
                b2=(Button)findViewById(R.id.order2);
                b.setOnClickListener(this);
                b2.setOnClickListener(this);

        }
          @Override
          public void onClick(View v) {
          switch(v.getId()){

        case R.id.order1 :
            Intent p = new Intent(getBaseContext(), show.class);
            p.putExtra("restu",1);
            startActivity(p);
            break;
        case R.id.order2 :
            Intent q = new Intent(getBaseContext(), show.class);
            q.putExtra("restu",2);
            startActivity(q);
            break;
             }
          }
}

将您的主要活动更改为此。并使用getBaseContext()

Answer 2

在每种情况下使用break。按钮点击监听器实现.Rest似乎很好。

Answer 3

试试这个，在每种情况下添加休息。

switch(restu){

    case 1:
        myWebView.loadUrl("https://www.foodmart.com.bd/index.php?Theme=default&Base=Page&Script=MenuPage&id=556");
        break;

    case 2:
        myWebView.loadUrl("https://www.foodpanda.com/");
        break;
    default:
        Log.d("what??", "something must be wrong")
        break;
}