e_5_1-Chat-Activities.zip_DEMO

package com.example.android.chat; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.widget.EditText; public class Main extends Activity { //Main主程序 private static final int SHOW_EDITOR = 0; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //设定Button01按钮的操作 Button button = (Button)findViewById(R.id.Button01); button.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(Main.this,Chatter.class); EditText editText = (EditText)findViewById(R.id.EditText01); CharSequence text = editText.getText(); //将传送的数据放置在共同存储区，变量:TEXT intent.putExtra("TEXT", text ); //切换到Chatter，同时等待回应，设定requestCode=SHOW_EDITOR startActivityForResult(intent, SHOW_EDITOR); } }); } //Main等待回应信息 @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == SHOW_EDITOR) { if (resultCode == RESULT_OK) { TextView textView = (TextView)findViewById(R.id.TextView02); textView.setText( "RESULT_OK: " + data.getCharSequenceExtra("TEXT")); } } } }