Android中Activity之间的简单数据传递-优快云博客

2019独角兽企业重金招聘Python工程师标准>>>

在MainActivity中：

public class MainActivity extends Activity {

EditText et_name,et_sex,et_number;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

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


    }

    public void onclick(View v)
    {
    String name=et_name.getText().toString().trim();
    String sex=et_sex.getText().toString().trim();
    String number=et_number.getText().toString().trim();

    if(TextUtils.isEmpty(name)&&TextUtils.isEmpty(number)&&TextUtils.isEmpty(sex))
    {
      Toast.makeText(this, "姓名性别手机号不能为空", 0).show();
      return;
    }

    Intent intent=new Intent();

    intent.setClass(this,MyActivity.class);

    //1.1这种方式只能传递一个信息
//    intent.putExtra("name", name);

    //1.2
    Bundle bundle=new Bundle();//用作捆绑较多的信息

    bundle.putString("name", name);
    bundle.putString("sex", sex);
    bundle.putString("number",number);

    intent.putExtras(bundle);

    startActivity(intent);

    }
}

在自定义的MyActivity中（要在清单文件中注册页面）：

public class MyActivity extends Activity {

TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  setContentView(R.layout.myactivity);
  tv=(TextView) findViewById(R.id.tv);

  Intent intent=this.getIntent();//返回激活这个Activity的intent

  Bundle bundle=intent.getExtras();

  String name=bundle.getString("name");
  String sex=bundle.getString("sex");
  String number=bundle.getString("number");

  String text="您的信息为："+"\n"+"姓名："+name+"\n"+"性别："+sex+"\n"+"手机号："+number;

  tv.setText(text);
}
}