1Intent實現(xiàn)數(shù)據(jù)通信

Intent實現(xiàn)數(shù)據(jù)通信一、基本用法2基本用法：

//顯式跳轉(zhuǎn)

Intentintent=newIntent(Activity甲.this,Activity乙.class);

startActivity(intent);

//傳遞參數(shù)

Intentintent=newIntent(Activity甲.this,Activity乙.class);

intent.putExtra(“參數(shù)名”,“要傳的價值，可以是任何類型”);

startActivity(intent);

//獲取參數(shù)，在目標Activity中

Intentintent=getIntent();

Stringdata=intent.getStringExtra("參數(shù)名");二、實現(xiàn)步驟3實現(xiàn)效果：輸入內(nèi)容，點擊提交二、實現(xiàn)步驟4privateEditTextname,age;

privateButtonsub,reg;

@Override

protectedvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

name=(EditText)findViewById(R.);

age=(EditText)findViewById(R.id.age);

sub=(Button)findViewById(R.id.submit);

reg=(Button)findViewById(R.id.reg);

sub.setOnClickListener(newView.OnClickListener(){

@Override

publicvoidonClick(Viewview){

Intentintent=newIntent(MainActivity.this,DiaochaActivity.class);

intent.putExtra("name",name.getText().toString());

intent.putExtra("age",age.getText().toString());

startActivity(intent);

name.setText("");

age.setText("");

}

});

reg.setOnClickListener(newView.OnClickListener(){

@Override

publicvoidonClick(Viewview){

name.setText("");

age.setText("");

}

});

}MainActivity.java代碼：二、實現(xiàn)步驟5privateTextView_name,_age;

@Override

protectedvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_diaocha);

Intentintent=getIntent();

Stringname=intent.getStringExtra("name");

Stringage=intent.getStringExtra("age");

_name=(TextView)findViewById(R.id._name);

_age=(TextView)findViewById(R.id._age);

_name.setText("名稱："+name);

_age.setText("年齡："+age);

}DiaochaActivity.jav