How to use Activity and Intent in Android

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Interface activity_main.xml

Interface otheractivity.xml

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 ("pass value"); sendButton = (Button) findViewById (R.id.sendButton) SendButton.setText ("SMS"); usernameEditText = (EditText) findViewById (R.id.usernameEditText) MyButton.setOnClickListener (new OnClickListener () {@ Override public 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 () {@ Override public void onClick (View v) {/ / call the originating program 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; @ Override protected 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 ("the value passed is:" + username);}} Thank you for reading! This is the end of the article on "how to use Activity and Intent in Android". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!