1.1<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <TextView android:id="@+id/text1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="40dp" android:layout_marginTop="120dp" android:text="手机号码" /> <EditText android:id="@+id/tb_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@id/text1" android:layout_alignBottom="@id/text1" android:layout_alignParentEnd="true" android:layout_marginLeft="-11dp" android:layout_marginEnd="3dp" android:layout_marginBottom="-69dp" android:layout_toRightOf="@id/text1" android:hint="" /> <Button android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="360dp" android:text="充值" android:onClick="click"/> <TextView android:id="@+id/tv_show" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginBottom="40dp" android:textSize="28dp"/></RelativeLayout>1.2
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".Second"> <TextView android:id="@+id/text_4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="40dp" android:layout_marginTop="180dp" android:text="手机号码为" /> <TextView android:id="@+id/text_6" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/text_4" android:layout_alignBottom="@id/text_4" android:text=" "/> <TextView android:id="@+id/text_5" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="40dp" android:layout_marginTop="240dp" android:text="充值金额"/> <EditText android:id="@+id/tb_2" android:layout_width="122dp" android:layout_height="wrap_content" android:layout_alignBottom="@id/text_5" android:layout_centerHorizontal="true"/> <Button android:id="@+id/bt_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@id/text_5" android:layout_alignParentBottom="true" android:layout_marginLeft="32dp" android:layout_marginBottom="180dp" android:layout_toRightOf="@id/tb_2" android:text="充值" android:onClick="one"/> <Button android:id="@+id/bt_2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_marginBottom="180dp" android:layout_toLeftOf="@id/bt_2" android:layout_toRightOf="@id/tb_2" android:text="取消充值" android:onClick="two"/></RelativeLayout>1.3
package com.example.couzhi;import android.content.Intent;import android.graphics.Color;import android.support.annotation.Nullable;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.text.SpannableStringBuilder;import android.text.Spanned;import android.text.style.ForegroundColorSpan;import android.view.View;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends AppCompatActivity { private EditText tb_1; private TextView tv_show; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tb_1=findViewById(R.id.tb_1); tv_show =findViewById(R.id.tv_show); } //点按钮开启第二个窗口 public void click(View V){ Intent intent=new Intent(); intent.setClass(this,Second.class); intent.putExtra("number",tb_1.getText().toString().trim()); startActivityForResult(intent,1); } @Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent intent) { super.onActivityResult(requestCode, resultCode, intent); if(requestCode==1&&resultCode==2){ String show=intent.getStringExtra("data"); String num=tb_1.getText().toString().trim(); SpannableStringBuilder builder=new SpannableStringBuilder("你为号码"+num+"\n 充值了"+show+"钱"); ForegroundColorSpan span1=new ForegroundColorSpan(Color.RED); builder.setSpan(span1,4,4+num.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); tv_show.setText(builder); } if(requestCode==1&&resultCode==3){ tv_show.setTextColor(Color.RED); tv_show.setText("充值失败"); } }}1.4
package com.example.couzhi;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.EditText;import android.widget.TextView;public class Second extends AppCompatActivity { //第二个页面的电话号码及充值金额 private TextView text_6; private EditText tb_2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_second); text_6=findViewById(R.id.text_6); tb_2=findViewById(R.id.tb_2); Intent intent=getIntent(); text_6.setText(intent.getStringExtra("number")); tb_2.setText(intent.getStringExtra("data")); } public void one(View v){ Intent intent=new Intent(); intent.putExtra("data",tb_2.getText().toString().trim()); setResult(2,intent); finish(); } public void two(View v){ Intent intent=new Intent(); setResult(3,intent); finish(); }}
1.5
