android intent 传参应注意的

例如如下代码:

 1 button = (Button) this.findViewById(R.id.search_button);
 2         textView = (TextView) this.findViewById(R.id.text_search);
 3         button.setOnClickListener(new OnClickListener() {
 4             
 5             @Override
 6             public void onClick(View v) {
 7                 Intent intent = new Intent(TestActivity.this,Top3ProduceActivity.class);
 8                 intent.putExtra("result_text",textView.getText());
 9                 startActivity(intent);
10             }
11         });

当Test2Activity 通过getIntent(),取跳转中的数据，将会报错，textView.getText()不是string 类型数据

//intent.putExtra("result_text", textView.getText());
intent.putExtra("result_text",""+ textView.getText());