Seventh operations (recharge)

MainActivity

package com.example.phone;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

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

    public void click(View v) {
        Intent intent = new Intent(this, SecondActivity.class);
        
        String s = ((EditText) findViewById(R.id.editText1)).getText().toString();
         if (s.length() == 11 ){
             startActivityForResult(intent, 1);
             }
         else {
             Toast.makeText (. MainActivity the this , "invalid phone number, please re-enter", 0 ) .Show ();
         }
    }
    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
        // TODO Auto-generated method stub
        if(requestCode==1){
            switch(resultCode){
            case 2:
                Toast.makeText ( the this , "successful recharge, your recharge amount is" + intent.getIntExtra ( "money", 0) + " Yuan", 0 ) .Show ();
                 BREAK ;
             Case 3 :
                Toast.makeText ( the this , "recharge failure", 0 ) the .Show ();        
                 BREAK ;        
            }
        }
    }
}

 

SecondActivity

package com.example.phone;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class SecondActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);
    }
    public void click(View v) {
        // TODO Auto-generated method stub
        String a = ((EditText) findViewById(R.id.editText1)).getText().toString();
        int money = Integer.valueOf(a);
        Intent the Intent = new new the Intent ();
         Switch (v.getId ()) {
         // If the button is a point Button2 
        Case R.id.button2:
             // result code is 2, what is the result code flag which button to press back 
            intent .putExtra ( "Money" , Money);
            setResult ( 2 , intent);
            Finish (); // close the current window 
            BREAK ;
         Case R.id.button3:
            setResult ( 3 , intent);
            finish (); // After clicking finish the current window is closed immediately and return to the previous window onActivityResult method 
            BREAK ;
        }
    }

}

 

activity_main

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/button1"
        android:layout_width="250dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/editText1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="111dp"
        android:background="#3A5FCD"
        android:onClick="click"
        android:text="充值"
        android:textColor="#FFFFFF" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="250dp"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textView1"
        android:layout_alignParentRight="true"
        android:phoneNumber="true"
        android:ems="10" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="102dp"
        android:text="手机号码"
        android:textSize="20sp" />

</RelativeLayout>

 

activity_second

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".SecondActivity" >

    <EditText
        android:id="@+id/editText1"
        android:layout_width="250dp"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textView1"
        android:layout_alignParentRight="true"
        android:phoneNumber="true"
        android:ems="10" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="102dp"
        android:text="充值金额"
        android:textSize="20sp" />

    <Button
        android:id="@+id/button2"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView1"
        android:layout_below="@+id/editText1"
        android:layout_marginLeft="22dp"
        android:layout_marginTop="98dp"
        android:background="#3A5FCD"
        android:textColor="#FFFFFF"
        android:text="确认充值"
        android:onClick="click"
         />

    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/editText1"
        android:layout_alignRight="@+id/textView1"
        android:layout_marginBottom="24dp"
        android:textSize="20sp" />

    <Button
        android:id="@+id/button3"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/button2"
        android:layout_alignBottom="@+id/button2"
        android:layout_alignRight="@+id/editText1"
        android:layout_marginRight="25dp"
        android:background="#3A5FCD"
        android:textColor="#FFFFFF"
        android:text="取消充值"
        android:onClick="click"
        />

</RelativeLayout>

Enter the 11-digit number: illegal number

Click to recharge the phone number is valid

Enter 1000. Click OK recharge amount

Click Cancel recharge