Intent的花样用法

来源：互联网发布：java微服务架构有哪些编辑：程序博客网时间：2024/06/10 06:50
Intent能够做很多事，我这次说一下它调用手机系统方面的能力
public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    //拨打电话    public  void onClick1(View v){        Intent intent=new Intent(Intent.ACTION_CALL,Uri.parse("tel:10086"));        startActivity(intent);    }    //调用拨号程序    public  void onClick2(View v){        Intent intent=new Intent("com.android.phone.action.TOUCH_DIALER");        startActivity(intent);    }    //调用联系人程序    public  void onClick3(View v){        Intent intent=new Intent("com.android.contacts.action.LIST_CONTACTS");        startActivity(intent);    }    //调用系统设置界面    public  void onClick4(View v){        Intent intent=new Intent("android.settings.SETTINGS");        startActivity(intent);    }    //显示WIFI设置界面    public  void onClick5(View v){        Intent intent=new Intent("android.settings.WIFI_SETTINGS");        startActivity(intent);    }}<?xml version="1.0" encoding="utf-8"?><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="android.com.myapplication.MainActivity">    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="button1"        android:onClick="onClick1"        android:id="@+id/button1"/>    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="button2"        android:layout_below="@+id/button1"        android:onClick="onClick2"        android:id="@+id/button2"/>    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="button3"        android:onClick="onClick3"        android:layout_below="@+id/button2"        android:id="@+id/button3"/>    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="button4"        android:layout_below="@+id/button3"        android:onClick="onClick4"        android:id="@+id/button4"/>    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="button5"        android:onClick="onClick5"        android:layout_below="@+id/button4"/></RelativeLayout>    <uses-permission android:name="android.permission.CALL_PHONE" />
再见
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