您好我想建立一个Android应用程序发送文本的其他活动,但我没有看到第二个活动的输入文字:(我试试这个教程:为什么我不从其他活动获取字符串?
http://developer.android.com/training/basics/firstapp/index.html
我做同样如何在这个教程:
如果我点击发送我使用Intent类和出这个我串...
这里是我DisplayMessageActivity.java
的代码public class DisplayMessageActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.activity_display_message);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
// Get the message from the intent
Intent intent = getIntent();
String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
// Create the text view
TextView textView = new TextView(this);
textView.setTextSize(40);
textView.setText(message);
// Set the text view as the activity layout
setContentView(textView);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
}
UPDATE:
我的第一个活动:
public class MainActivity extends ActionBarActivity {
public final static String EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
// Button Events
public void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
}
我没有看到你的代码2周的活动。 – Raghunandan 2014-09-23 09:30:00
这是第二个....我发布的第一个太...时刻 – Tarasov 2014-09-23 09:31:38
发布您的MainActivity.Because的代码,因为当您在MainActivity中正确传递并启动当前活动(DisplayMessageActivity),那么它来到 – 2014-09-23 09:31:41