這篇文章主要講解了Android如何實(shí)現(xiàn)簡單用戶注冊,內(nèi)容清晰明了,對此有興趣的小伙伴可以學(xué)習(xí)一下,相信大家閱讀完之后會有幫助。
成都創(chuàng)新互聯(lián)專注于企業(yè)成都營銷網(wǎng)站建設(shè)、網(wǎng)站重做改版、魯山網(wǎng)站定制設(shè)計(jì)、自適應(yīng)品牌網(wǎng)站建設(shè)、成都h5網(wǎng)站建設(shè)、電子商務(wù)商城網(wǎng)站建設(shè)、集團(tuán)公司官網(wǎng)建設(shè)、成都外貿(mào)網(wǎng)站制作、高端網(wǎng)站制作、響應(yīng)式網(wǎng)頁設(shè)計(jì)等建站業(yè)務(wù),價(jià)格優(yōu)惠性價(jià)比高,為魯山等各大城市提供網(wǎng)站開發(fā)制作服務(wù)。
目標(biāo):設(shè)計(jì)一個(gè)用戶注冊案例。在主界面中對輸入的手機(jī)號、密碼、性別、愛好和城市后,可以在界面二中進(jìn)行顯示。
提示:
1、頁面布局的元素用到TextView、EditText、Button、RadioButton、CheckBox、Spinner;
2、通過intent實(shí)現(xiàn)主界面跳轉(zhuǎn)到界面二
3、涉及傳遞多個(gè)的數(shù)據(jù)時(shí),使用Bundle對象作為容器,通過調(diào)用Bundle的putString先將數(shù)據(jù)存儲到Bundle中,然后調(diào)用Intent的putExtras()方法將Bundle存入Intent中,然后獲得Intent后, 調(diào)用getExtras()獲得Bundle容器,然后調(diào)用其getString獲取對應(yīng)的數(shù)據(jù)!
Bundle bundle=new Bundle(); bundle.putString("phone",phone_str); bundle.putString("paswd",paswd_str); bundle.putString("sex",sex_str); bundle.putString("hobby",hobby_str); bundle.putString("city",city_str); //為意圖追加額外的數(shù)據(jù),意圖原來已經(jīng)具有的數(shù)據(jù)不會丟失,但key同名的數(shù)據(jù)會被替換 intent.putExtras(bundle);
//取得啟動該Activity的Intent對象 Intent intent=this.getIntent(); Bundle bundle=intent.getExtras(); /*取出Intent中附加的數(shù)據(jù)*/ String phone=bundle.getString("phone"); String paswd=bundle.getString("paswd"); String sex=bundle.getString("sex"); String hobby=bundle.getString("hobby"); String city=bundle.getString("city");
界面顯示如下:
實(shí)現(xiàn)如下:
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
activity_second.xml
<?xml version="1.0" encoding="utf-8"?>
MainActivity.java
package com.example.jinjin.applicationtest4; import android.content.Intent; import android.os.Bundle; import android.support.annotation.IdRes; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.Spinner; public class MainActivity extends AppCompatActivity implements View.OnClickListener,RadioGroup.OnCheckedChangeListener{ //定義字符串用來保存各個(gè)信息 private String phone_str=""; private String paswd_str=""; private String sex_str="男"; private String hobby_str="1"; private String city_str=""; //組件定義 EditText phone_edit,paswd_edit; RadioGroup sex_group; RadioButton nan_but,nv_but; CheckBox play,read,music; Button register; Spinner spinner; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //初始化組件 phone_edit = (EditText) findViewById(R.id.phone); paswd_edit=(EditText)findViewById(R.id.paswd); sex_group=(RadioGroup)findViewById(R.id.sex); //添加監(jiān)聽事件 nan_but=(RadioButton)findViewById(R.id.nan); sex_group.setOnCheckedChangeListener(this); read=(CheckBox)findViewById(R.id.read_book); play=(CheckBox)findViewById(R.id.play_ball); music=(CheckBox)findViewById(R.id.music); register=(Button)findViewById(R.id.register); //添加監(jiān)聽事件 register.setOnClickListener(this); spinner=(Spinner)findViewById(R.id.spinner); // 創(chuàng)建ArrayAdapter對象 final String[] city=new String[]{"南寧","桂林","百色","柳州","玉林","河池"}; ArrayAdapteradapter=new ArrayAdapter (this,android.R.layout.simple_list_item_1,city); spinner.setAdapter(adapter); //城市下拉單列表添加監(jiān)聽事件 spinner.setOnItemSelectedListener(new Spinner.OnItemSelectedListener(){ @Override public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) { city_str=city[i]; } @Override public void onNothingSelected(AdapterView<?> adapterView) { //未選中狀態(tài) } }); } @Override public void onClick(View view) { switch (view.getId()){ case R.id.register: //獲取手機(jī)號和密碼 phone_str=phone_edit.getText().toString(); paswd_str=paswd_edit.getText().toString(); //獲取興趣愛好即復(fù)選框的值 hobby_str="";//清除上一次已經(jīng)選中的選項(xiàng) if (read.isChecked()){ hobby_str+=read.getText().toString(); }if(play.isChecked()){ hobby_str+=play.getText().toString(); }if(music.isChecked()){ hobby_str+=music.getText().toString(); } Intent intent=new Intent(this,SecondActivity.class); Bundle bundle=new Bundle(); bundle.putString("phone",phone_str); bundle.putString("paswd",paswd_str); bundle.putString("sex",sex_str); bundle.putString("hobby",hobby_str); bundle.putString("city",city_str); intent.putExtras(bundle); startActivity(intent); break; } } @Override public void onCheckedChanged(RadioGroup radioGroup, @IdRes int i) { //根據(jù)用戶選擇來改變sex_str的值 sex_str=i==R.id.nan?"男性":"女性"; } }
SecondActivity.java
package com.example.jinjin.applicationtest4; import android.content.Intent; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; /** * Created by jinjin on 2020/5/23. */ public class SecondActivity extends AppCompatActivity { @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_second); Intent intent=this.getIntent(); Bundle bundle=intent.getExtras(); String phone=bundle.getString("phone"); String paswd=bundle.getString("paswd"); String sex=bundle.getString("sex"); String hobby=bundle.getString("hobby"); String city=bundle.getString("city"); TextView show_text=(TextView)findViewById(R.id.show_content); show_text.setText("手機(jī)號為:"+phone+"\n"+"密碼為:"+paswd+"\n"+"性別是:"+sex+"\n"+"愛好是:"+hobby+"\n"+"城市是:"+city); } }
鞏固監(jiān)聽事件:如果要對register和spinne的監(jiān)聽事件改造方法,如何重新實(shí)現(xiàn)監(jiān)聽?
實(shí)現(xiàn)如下
package com.example.jinjin.applicationtest4; import android.content.Intent; import android.os.Bundle; import android.support.annotation.IdRes; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.AdapterView; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.Spinner; public class MainActivity extends AppCompatActivity implements RadioGroup.OnCheckedChangeListener,AdapterView.OnItemSelectedListener{ //定義字符串用來保存各個(gè)信息 private String phone_str = ""; private String paswd_str = ""; private String sex_str = "男"; private String hobby_str = "1"; private String city_str = ""; //組件定義 EditText phone_edit, paswd_edit; RadioGroup sex_group; RadioButton nan_but, nv_but; CheckBox play, read, music; Button register; Spinner spinner; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //初始化組件 phone_edit = (EditText) findViewById(R.id.phone); paswd_edit = (EditText) findViewById(R.id.paswd); sex_group = (RadioGroup) findViewById(R.id.sex); //添加監(jiān)聽事件 nan_but = (RadioButton) findViewById(R.id.nan); sex_group.setOnCheckedChangeListener(this); read = (CheckBox) findViewById(R.id.read_book); play = (CheckBox) findViewById(R.id.play_ball); music = (CheckBox) findViewById(R.id.music); register = (Button) findViewById(R.id.register); //添加監(jiān)聽事件 // register.setOnClickListener(this); spinner = (Spinner) findViewById(R.id.spinner); //直接new一個(gè)內(nèi)部類對象作為參數(shù) register.setOnClickListener(new mclick()); // final String[] city=new String[]{"南寧","桂林","百色","柳州","玉林","河池"}; // ArrayAdapteradapter=new ArrayAdapter (this,android.R.layout.simple_list_item_1,city); // spinner.setAdapter(adapter); // //城市下拉單列表添加監(jiān)聽事件 // spinner.setOnItemSelectedListener(new Spinner.OnItemSelectedListener(){ // @Override // public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) { // city_str=city[i]; // } // @Override // public void onNothingSelected(AdapterView<?> adapterView) { // } // }); //Spinner加載監(jiān)聽事件 spinner.setOnItemSelectedListener(this); } @Override public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) { city_str=MainActivity.this.getResources().getStringArray(R.array.city)[i]; } @Override public void onNothingSelected(AdapterView<?> adapterView) { } //定義一個(gè)內(nèi)部類,實(shí)現(xiàn)View.OnClickListener接口,并重寫onClick()方法 class mclick implements View.OnClickListener { @Override public void onClick(View view) { switch (view.getId()) { case R.id.register: //獲取手機(jī)號和密碼 phone_str = phone_edit.getText().toString(); paswd_str = paswd_edit.getText().toString(); //獲取興趣愛好即復(fù)選框的值 hobby_str = "";//清除上一次已經(jīng)選中的選項(xiàng) if (read.isChecked()) { hobby_str += read.getText().toString(); } if (play.isChecked()) { hobby_str += play.getText().toString(); } if (music.isChecked()) { hobby_str += music.getText().toString(); } Intent intent = new Intent(MainActivity.this, SecondActivity.class); Bundle bundle = new Bundle(); bundle.putString("phone", phone_str); bundle.putString("paswd", paswd_str); bundle.putString("sex", sex_str); bundle.putString("hobby", hobby_str); bundle.putString("city", city_str); intent.putExtras(bundle); startActivity(intent); break; } } } @Override public void onCheckedChanged(RadioGroup radioGroup, @IdRes int i) { //根據(jù)用戶選擇來改變sex_str的值 sex_str = i == R.id.nan ? "男性" : "女性"; } }
在res/values下編寫一個(gè):array.xml文件,內(nèi)容如下:
<?xml version="1.0" encoding="utf-8"?>- 南寧
- 桂林
- 柳州
- 百色
- 河池
- 玉林
看完上述內(nèi)容,是不是對Android如何實(shí)現(xiàn)簡單用戶注冊有進(jìn)一步的了解,如果還想學(xué)習(xí)更多內(nèi)容,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道。