android activity Intent 传值 传对象 (1)，头条三面技术四面 HR

android activity Intent 传值 传对象

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main。java

package com.yqy.yqy_intenttest;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

public class MainActivity extends Activity {

EditText et_content;

Button btn;

EditText et_name, et_sex;

Button btn_object;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

// 传值

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

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

btn.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View arg0) {

Intent i = new Intent(MainActivity.this, BActivity.class);

i.putExtra("content", et_content.getText().toStr

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ing());

startActivity(i);

}

});

// 传对象

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

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

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

btn_object.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View arg0) {

MyInfoBean mib = new MyInfoBean(""

• et_name.getText().toString(), ""

• et_sex.getText().toString());

Bundle bd = new Bundle();

bd.putSerializable("mib", mib);

Intent i = new Intent(MainActivity.this, OActivity.class);

i.putExtras(bd);

startActivity(i);

}

});

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

}

2.传值接收 B.java

package com.yqy.yqy_intenttest;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.widget.TextView;

public class BActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_b);

//接收值

String content = getIntent().getStringExtra("content");

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

tv_show.setText(content);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.b, menu);

return true;

}

}

3.传递对象? 实体类? o。java

package com.yqy.yqy_intenttest;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.widget.TextView;

public class OActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_o);

Intent i = getIntent();

Bundle bd = i.getExtras();

MyInfoBean mib = (MyInfoBean) bd.getSerializable("mib");