Android 实现页面跳转

2023-09-25 01:40:09 70

android使用Intent来实现页面跳转，Intent通过startActivity(Intentintent)或startActivityForResult(Intentintent,intresquestCode)方法来启动Activity，在新建Intent对象时来指定从A页面跳到B页面，

比如：

Intenti=newIntent(A.this,B.class);这就表示从A页面跳到B页面，

Intent对象通过调用putExtra方法来传递页面跳转时所需要传递的信息

比如：

putExtra（“给需要传递的信息命名”，需要传递的信息的内容）

Intent通过调用getStringExtra方法来接受传递过来的信息

getStringExtra（“传递过来的信息的名字”）；

下面的代码将实现用户输入完信息之后点击登入按钮，页面将跳转到另一页面显示个人信息，然后在这个页面有一个返回按钮，点击返回按钮，页面将返回登入页面再次显示个人信息。

MainActivity.java

packagecom.example.hsy.register;
importandroid.content.Intent;
importandroid.support.annotation.IdRes;
importandroid.support.v7.app.AppCompatActivity;
importandroid.os.Bundle;
importandroid.view.View;
importandroid.widget.AdapterView;
importandroid.widget.Button;
importandroid.widget.CheckBox;
importandroid.widget.CompoundButton;
importandroid.widget.EditText;
importandroid.widget.RadioButton;
importandroid.widget.RadioGroup;
importandroid.widget.Spinner;
importandroid.widget.TextView;
publicclassMainActivityextendsAppCompatActivity{
EditTextetName,etPwd;
ButtonbtnLogin;
TextViewtvShow;
RadioGrouprg;
RadioButtonrbMale,rbFelMale;
CheckBoxcheckbox1,checkbox2,checkbox3;
Spinnerspcity;
Stringsex="";
Stringhobby1="",hobby2="",hobby3="";
Stringresult="";
Stringcity="";
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.test);
init();
rglistener();
btnloginlistener();
box1listener();
box2listener();
box3listener();
splistener();
}
@Override
protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){
super.onActivityResult(requestCode,resultCode,data);
tvShow.setText("返回结果是："+"\n"+data.getStringExtra("result1").toString()+
"\n");
}
privatevoidsplistener(){
spcity.setOnItemSelectedListener(newAdapterView.OnItemSelectedListener(){
@Override
publicvoidonItemSelected(AdapterViewparent,Viewview,intposition,longid){
city=(String)spcity.getSelectedItem();
}
@Override
publicvoidonNothingSelected(AdapterViewparent){
}
});
}
privatevoidbox3listener(){
checkbox3.setOnCheckedChangeListener(newCompoundButton.OnCheckedChangeListener(){
@Override
publicvoidonCheckedChanged(CompoundButtonbuttonView,booleanisChecked){
if(isChecked){
hobby3="看书";
}else{
hobby3="";
}
}
});
}
privatevoidbox2listener(){
checkbox2.setOnCheckedChangeListener(newCompoundButton.OnCheckedChangeListener(){
@Override
publicvoidonCheckedChanged(CompoundButtonbuttonView,booleanisChecked){
if(isChecked){
hobby2="游泳";
}else{
hobby2="";
}
}
});
}
privatevoidbox1listener(){
checkbox1.setOnCheckedChangeListener(newCompoundButton.OnCheckedChangeListener(){
@Override
publicvoidonCheckedChanged(CompoundButtonbuttonView,booleanisChecked){
if(isChecked){
hobby1="唱歌";
}else{
hobby1="";
}
}
});
}
privatevoidbtnloginlistener(){
btnLogin.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
result="用户名是:"+etName.getText().toString()+"\n"+"密码是:"+
etPwd.getText().toString()+"\n"+"性别是:"+sex+"\n"+"爱好是："+hobby1+""
+hobby2+""+hobby3+""+
"\n"+"所在城市："+city;
//tvShow.setText(result);
Intenti=newIntent(MainActivity.this,Main2Activity.class);
i.putExtra("data1",result);
startActivityForResult(i,0);
}
});
}
privatevoidrglistener(){
rg.setOnCheckedChangeListener(newRadioGroup.OnCheckedChangeListener(){
@Override
publicvoidonCheckedChanged(RadioGroupgroup,@IdResintcheckedId){
if(checkedId==R.id.rbMale)
sex="男生";
else
sex="女生";
}
});
}
privatevoidinit(){
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

packagecom.example.hsy.register;
importandroid.content.Intent;
importandroid.support.v7.app.AppCompatActivity;
importandroid.os.Bundle;
importandroid.view.View;
importandroid.widget.TextView;
publicclassMain2ActivityextendsAppCompatActivity{
TextViewtvShow;
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
tvShow=(TextView)findViewById(R.id.tvShow);
Intentintent=getIntent();
tvShow.setText(intent.getStringExtra("data1").toString());
findViewById(R.id.btnBack).setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
Intentintent1=newIntent(Main2Activity.this,MainActivity.class);
intent1.putExtra("result1",tvShow.getText().toString());
setResult(1,intent1);
finish();
}
});
}
}

test.xml

activity_main2.xml

总结

以上所述是小编给大家介绍的Android实现页面跳转，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对毛票票网站的支持！

Android 实现页面跳转

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