Android學習筆記-Activity&Intent

標籤：android

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介面activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.example.activity02.MainActivity" >    <!--         <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" />    -->    <EditText        android:id="@+id/usernameEditText"        android:layout_width="fill_parent"        android:layout_height="wrap_content"         android:hint="username"/>    <Button        android:id="@+id/myButton"        android:layout_width="fill_parent"        android:layout_height="wrap_content"         android:layout_below="@+id/usernameEditText"/>        <Button        android:id="@+id/sendButton"        android:layout_width="fill_parent"        android:layout_height="wrap_content"         android:layout_below="@+id/myButton"/></RelativeLayout>

介面otheractivity.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >        <TextView        android:id="@+id/myTextView"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        /></LinearLayout>

MainActivity.java

public class MainActivity extends ActionBarActivity {private Button myButton;private Button sendButton;private EditText usernameEditText;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                myButton = (Button) findViewById(R.id.myButton);        myButton.setText("傳值");                sendButton = (Button) findViewById(R.id.sendButton);        sendButton.setText("發簡訊");                usernameEditText = (EditText) findViewById(R.id.usernameEditText);                myButton.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {//Intent intent = new Intent(MainActivity.this, OtherActivity.class);Intent intent = new Intent();intent.setClass(MainActivity.this, OtherActivity.class);String username = usernameEditText.getText().toString();intent.putExtra("username", username);MainActivity.this.startActivity(intent);//startActivity(intent);}});                sendButton.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {//調用發端信的程式Uri uri = Uri.parse("smsto:18513430780");Intent intent = new Intent(Intent.ACTION_SENDTO, uri);intent.putExtra("sms_body", "The SMS text");startActivity(intent);}});    }}

OtherActivity.java

public class OtherActivity extends Activity{private TextView myTextView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);Toast.makeText(getApplicationContext(), "click", Toast.LENGTH_SHORT).show();setContentView(R.layout.otheractivity);myTextView = (TextView) findViewById(R.id.myTextView);String username = getIntent().getStringExtra("username");myTextView.setText("傳過來的值是：" + username);}}

本文出自 “阿凡達” 部落格，請務必保留此出處http://shamrock.blog.51cto.com/2079212/1575773

Android學習筆記-Activity&Intent