android使用Intent來(lái)實(shí)現(xiàn)頁(yè)面跳轉(zhuǎn)，Intent通過(guò)startActivity(Intent intent)或startActivityForResult(Intent intent,int resquestCode)方法來(lái)啟動(dòng)Activity，在新建Intent對(duì)象時(shí)來(lái)指定從A頁(yè)面跳到B頁(yè)面，
比如：
Intent i = new Intent(A.this,B.class);這就表示從A頁(yè)面跳到B頁(yè)面，
Intent對(duì)象通過(guò)調(diào)用putExtra方法來(lái)傳遞頁(yè)面跳轉(zhuǎn)時(shí)所需要傳遞的信息
比如：
putExtra（“給需要傳遞的信息命名”，需要傳遞的信息的內(nèi)容）
Intent通過(guò)調(diào)用getStringExtra方法來(lái)接受傳遞過(guò)來(lái)的信息
getStringExtra（“傳遞過(guò)來(lái)的信息的名字”）；
下面的代碼將實(shí)現(xiàn)用戶輸入完信息之后點(diǎn)擊登入按鈕，頁(yè)面將跳轉(zhuǎn)到另一頁(yè)面顯示個(gè)人信息，然后在這個(gè)頁(yè)面有一個(gè)返回按鈕，點(diǎn)擊返回按鈕，頁(yè)面將返回登入頁(yè)面再次顯示個(gè)人信息。
MainActivity.java
package com.example.hsy.register;import android.content.Intent;import android.support.annotation.IdRes;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.Button;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.EditText;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.Spinner;import android.widget.TextView;public class MainActivity extends AppCompatActivity { EditText etName,etPwd; Button btnLogin; TextView tvShow; RadioGroup rg; RadioButton rbMale,rbFelMale; CheckBox checkbox1,checkbox2,checkbox3; Spinner spcity; String sex=""; String hobby1="",hobby2="",hobby3=""; String result=""; String city=""; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.test); init(); rglistener(); btnloginlistener(); box1listener(); box2listener(); box3listener(); splistener(); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); tvShow.setText("返回結(jié)果是："+"/n"+data.getStringExtra("result1").toString()+ "/n"); } private void splistener() { spcity.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { city=(String) spcity.getSelectedItem(); } @Override public void onNothingSelected(AdapterView<?> parent) { } }); } private void box3listener() { checkbox3.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if(isChecked){ hobby3="看書"; } else { hobby3=""; } } }); } private void box2listener() { checkbox2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if(isChecked){ hobby2="游泳"; } else { hobby2=""; } } }); } private void box1listener() { checkbox1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if(isChecked){ hobby1="唱歌"; } else { hobby1=""; } } }); } private void btnloginlistener() { btnLogin.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View v){ result="用戶名是:"+etName.getText().toString()+"/n"+"密碼是:"+ etPwd.getText().toString()+"/n"+"性別是:"+sex+"/n"+"愛(ài)好是："+hobby1+" " +hobby2+" "+hobby3+" "+ "/n"+"所在城市："+city; //tvShow.setText(result); Intent i = new Intent(MainActivity.this,Main2Activity.class); i.putExtra("data1",result); startActivityForResult(i,0); } }); } private void rglistener() { rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener(){ @Override public void onCheckedChanged(RadioGroup group, @IdRes int checkedId){ if(checkedId== R.id.rbMale) sex="男生"; else sex="女生"; } }); } private void init() { etName=(EditText) findViewById(R.id.etName); etPwd=(EditText) findViewById(R.id.etPwd); btnLogin=(Button) findViewById(R.id.btnLogin); tvShow=(TextView) findViewById(R.id.tvShow); rg=(RadioGroup) findViewById(R.id.rg); rbMale=(RadioButton) findViewById(R.id.rbMale); rbFelMale=(RadioButton) findViewById(R.id.rbFeMale); checkbox1=(CheckBox) findViewById(R.id.checkbox1); checkbox2=(CheckBox) findViewById(R.id.checkbox2); checkbox3=(CheckBox) findViewById(R.id.checkbox3); spcity=(Spinner) findViewById(R.id.Spcity); }}MainActivity2.java
package com.example.hsy.register;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.TextView;public class Main2Activity extends AppCompatActivity { TextView tvShow; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2); tvShow=(TextView)findViewById(R.id.tvShow); Intent intent = getIntent(); tvShow.setText(intent.getStringExtra("data1").toString()); findViewById(R.id.btnBack).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent1=new Intent(Main2Activity.this,MainActivity.class); intent1.putExtra("result1",tvShow.getText().toString()); setResult(1,intent1); finish(); } }); }}test.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="用戶名:" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:textSize="20dp" android:textColor="@color/colorPrimaryDark"/> <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:hint="輸入2-10個(gè)字符" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:layout_weight="1" android:id="@+id/etName"/> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="密 碼:" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:textSize="20dp" android:textColor="@color/colorPrimaryDark"/> <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:hint="輸入6-10個(gè)字符" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:layout_weight="1" android:id="@+id/etPwd"/> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="選擇性別:" android:layout_marginTop="10dp" android:layout_marginLeft="10dp" android:textSize="20dp" android:textColor="@color/colorPrimary" /> <RadioGroup android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:id="@+id/rg"> <RadioButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="15dp" android:layout_marginTop="10dp" android:textColor="@color/colorAccent" android:textSize="10dp" android:text="男" android:id="@+id/rbMale"/> <RadioButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="15dp" android:layout_marginTop="10dp" android:textColor="@color/colorAccent" android:textSize="10dp" android:text="女" android:id="@+id/rbFeMale"/> </RadioGroup> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:textSize="20dp" android:textColor="@color/colorAccent" android:text="興趣愛(ài)好:"/> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:textSize="15dp" android:textColor="@color/colorAccent" android:id="@+id/checkbox1" android:text="唱歌"/> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:textSize="15dp" android:textColor="@color/colorAccent" android:id="@+id/checkbox2" android:text="游泳"/> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:textSize="15dp" android:textColor="@color/colorAccent" android:id="@+id/checkbox3" android:text="看書"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="5dp" android:layout_marginTop="6dp" android:textSize="15dp" android:text="所在地"/> <Spinner android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="6dp" android:layout_marginLeft="10dp" android:entries="@array/citys" android:id="@+id/Spcity"> </Spinner> </LinearLayout> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:text="登錄" android:layout_marginTop="10dp" android:textSize="20dp" android:id="@+id/btnLogin"/> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="20dp" android:text="顯示信息" android:id="@+id/tvShow"/></LinearLayout>
activity_main2.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout 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" android:orientation="vertical" tools:context="com.example.hsy.register.Main2Activity"> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="10dp" android:layout_marginLeft="10dp" android:text="顯示結(jié)果" android:id="@+id/tvShow"/> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_marginTop="10dp" android:text="返回結(jié)果" android:id="@+id/btnBack"/></LinearLayout>
總結(jié)
以上所述是小編給大家介紹的Android 實(shí)現(xiàn)頁(yè)面跳轉(zhuǎn)，希望對(duì)大家有所幫助，如果大家有任何疑問(wèn)請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)武林網(wǎng)網(wǎng)站的支持！
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