新开activity并且新旧窗口之间传值

首先在清单文件中配置组件，在application节点下增加

 <activity             android:name=".otherActivity"            android:label="@string/activity_other"            ></activity>

新建activity类并且继承activity 重写oncreate方法

package com.example.mulactivity;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.EditText;public class otherActivity extends Activity {    private EditText editor;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.other);        editor=(EditText) findViewById(R.id.editText1);                //获取用于激活该窗口的意图对象        Intent intent=getIntent();        editor.setText(intent.getStringExtra("name"));    }        public void close(View view){        //设置返回数据        setResult(30, new Intent().putExtra("return", "哈哈哈"));        this.finish();    }}

在原先activity中设置意图并传值

package com.example.mulactivity;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.View;import android.widget.Toast;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void show(View view){        //设置要激活的组件        Intent intent=new Intent(this, otherActivity.class);        //向意图中传入值        intent.putExtra("name", "张杰");        //打开窗口        //startActivity(intent);        //打开窗口并能够接受返回数据        startActivityForResult(intent, 200);    }    //当新窗口返回结果时该方法调用    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        Toast.makeText(this.getApplicationContext(), data.getStringExtra("return"), 1).show();    }}

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