Exemple de Android Intent implicite, ouvrez une URL, envoyez un email
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Cet exemple simple, lorsque vous cliquez sur un Button qui nécessite de voir le site Web par URL, vous créez Intent implicite, une Intent a été envoyée au système Android pour décider quels composants seront ouverts, peut-être que votre équipement installe de nombreux navigateurs différents (Firefox, Chrome, ...), l'appareil l'ouvrira dans votre navigateur par défaut ou votre navigateur préféré.

En plus, les exemples incluent également:
- Envoy un e-mail

Note: The Android system will try to find its best application to send email. On the emulator, there may not be a good emailing application.
Créez un nouveau projet Android nommé "ImplicitIntentExample".

- Name: ImplicitIntentExample
- Package name: org.o7planning.implicitintentexample

The interface of the application:

activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <Button android:id="@+id/button_openURL" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="38dp" android:text="Open Google.com" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> <Button android:id="@+id/button_sendEmail" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="42dp" android:text="Send Email" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/button_openURL" /> </androidx.constraintlayout.widget.ConstraintLayout>
MainActivity.java
package org.o7planning.implicitintentexample; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.content.Intent; import android.net.Uri; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity { private Button buttonOpenURL; private Button buttonSendEmail; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); this.buttonOpenURL = (Button) this.findViewById(R.id.button_openURL); this.buttonSendEmail = (Button) this.findViewById(R.id.button_sendEmail); this.buttonOpenURL.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { openURL(); } }); this.buttonSendEmail.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { sendEmail(); } }); } // The method is called when the user clicks on "Open google.com" button. public void openURL( ) { String url="https://google.com"; // An implicit intent, request a URL. Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); this.startActivity(intent); } // The method is called when the user clicks on "Send Email" button. public void sendEmail( ) { // List of recipients String[] recipients=new String[]{"friendemail@gmail.com"}; String subject="Hi, how are you!"; String content ="This is my test email"; Intent intentEmail = new Intent(Intent.ACTION_SEND, Uri.parse("mailto:")); intentEmail.putExtra(Intent.EXTRA_EMAIL, recipients); intentEmail.putExtra(Intent.EXTRA_SUBJECT, subject); intentEmail.putExtra(Intent.EXTRA_TEXT, content); intentEmail.setType("text/plain"); startActivity(Intent.createChooser(intentEmail, "Choose an email client from...")); } }