android intent 传参应注意的

例如如下代码:

 

button = (Button) this.findViewById(R.id.search_button);
        textView = (TextView) this.findViewById(R.id.text_search);
        button.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(TestActivity.this,Top3ProduceActivity.class);
                intent.putExtra("result_text",textView.getText());
                startActivity(intent);
            }
        });

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());