Turn On / off 3G Data

up vote6down voteaccepted

ConnectivityManager mgr = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE); Method dataMtd = ConnectivityManager.class.getDeclaredMethod("setMobileDataEnabled", boolean.class); dataMtd.setAccessible(true); dataMtd.invoke(mgr, true/false); you need android.permission.CHANGE_NETWORK_STATE permission too share|improve this answer answered Dec 2 '11 at 11:56 Riyaz Mohammed Ibrahim 1,14941422

Hi, Thanks. The only issue is that it cannot stably enable data connection in my HTC EVO 4G -- although the widget seems enabled but it is not really data connected. (Disabling data connection is always okay) – Richard Ye Dec 5 '11 at 7:03 feedback

up vote2down vote	You also need to add <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" /> to the manifest.xml share|improve this answer edited Oct 2 at 9:43 Jav_Rock 8,67373369 answered Oct 1 at 20:31 Martin 212
	feedback

up vote0down vote

In your androidmanifest.xml: <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

Turn ON/OFF the Auto Sync Code in Java for Android This Code works from Android API Level 5 - private void turnAutoSyncOff(){ ContentResolver.setMasterSyncAutomatically(false); } private void turnAutoSyncOn(){ ContentResolver.setMasterSyncAutomatically(true); } private boolean isAutoSync() { return ContentResolver.getMasterSyncAutomatically(); } Posted by G-tendra at 1:28 PM Email This BlogThis! Share to Twitter Share to Facebook Labels: Android, Sync 2 comments: AnonymousMay 21, 2012 10:31 PM You forgot on permission android.permission.WRITE_SYNC_SETTINGS permission android.permission.READ_SYNC_SETTINGS in your Manifest.xml

Turn ON/OFF the Auto Sync Code in Java for Android

This Code works from Android API Level 5 -


private void turnAutoSyncOff(){
ContentResolver.setMasterSyncAutomatically(false);
}

private void turnAutoSyncOn(){
ContentResolver.setMasterSyncAutomatically(true);
}

private boolean isAutoSync() {
return ContentResolver.getMasterSyncAutomatically();
}

Auto rotate

public static void setAutoOrientationEnabled(ContentResolver resolver,
boolean enabled) {
Settings.System.putInt(resolver,
Settings.System.ACCELEROMETER_ROTATION, enabled ? 1 : 0);
}

gps on off

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
import android.app.Activity;
import android.view.Menu;

-----------------------------------------------------------


private void turnGPSOn(){
   String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);

   if(!provider.contains("gps")){ //if gps is disabled
       final Intent poke = new Intent();
       poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
       poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
       poke.setData(Uri.parse("3"));
       sendBroadcast(poke);
   }
}

private void turnGPSOff(){
   String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);

   if(provider.contains("gps")){ //if gps is enabled
       final Intent poke = new Intent();
       poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
       poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
       poke.setData(Uri.parse("3"));
       sendBroadcast(poke);
   }
}

----------------------------------------------------------------
toggle

Enable bluetooth:

BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

Enable bluetooth:
if (!mBluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}





<uses-permission android:name="android.permission.BLUETOOTH" />

if (!mBluetoothAdapter.isEnabled()) {
mBluetoothAdapter.enable();
} else {
mBluetoothAdapter.disable();

}

------------------------------------------------------------------------------------------

<uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>

set wifi

11down voteaccepted

You need the following permissions in your manifest file: <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission> <uses-permission android:name="android.permission.UPDATE_DEVICE_STATS"></uses-permission> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission> <uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission> Then you can use the following in your activity class: wifiManager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE); wifiManager.setWifiEnabled(true); wifiManager.setWifiEnabled(false); Use the following to check if it's enabled or not boolean wifiEnabled = wifiManager.isWifiEnabled() You'll find a nice tutorial on the subject on this site. wifi toggle power toggle setting

android之手机震动Vibrate

2011-03-12 20:25 2122人阅读 评论(0) 收藏 举报 [java:nogutter] view plaincopy package cn.com.chenzheng_java; import android.app.Activity; import android.media.AudioManager; import android.os.Bundle; import android.os.Vibrator; import android.view.View; import android.widget.Toast; import android.widget.ToggleButton; public class VibrateActivity extends Activity { private ToggleButton button ; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.vibrate); button = (ToggleButton) findViewById(R.id.toggleButton1); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Boolean flag = button.isChecked(); if(flag){ // 获取Vibrate对象 Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE); // vibrator.vibrate(3000); // 设置Vibrate的震动周期 vibrator.vibrate(new long[]{1000,2000,3000,4000}, 0); Toast.makeText(VibrateActivity.this, "震动了", Toast.LENGTH_LONG).show(); } else{ } } }); } } android.os.Vibrate代表着手机的振动器。用法很简单，通过getSystemService()方法获取示例，然后调用vibrate方法便可以实现震动。 要使用该振动器必须在AndroidManifest.xml中指定权限

repeat play sound

setContentView(R.layout.activity_main); // Button "button1" Button button1 = (Button) findViewById(R.id.button1); button1.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { // To-Do //ShowMsgDialog("哈哈哈"); //sendSMS("60399460", "message"); Thread thread = new Thread(){ @Override public void run(){ try{ playsound(); Thread.sleep(1000); run(); }catch (Exception e){ e.printStackTrace(); }finally{ } } }; //開始執行執行緒 thread.start(); } }); // End of Button "button1" } protected void playsound() { // TODO Auto-generated method stub MediaPlayer mp = MediaPlayer.create(MainActivity.this, R.raw.mysound); mp.setOnCompletionListener(new OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { // TODO Auto-generated method stub mp.release(); } }); mp.start(); }

play sound

 mp = MediaPlayer.create(Test.this, R.raw.mysound);
            mp.setOnCompletionListener(new OnCompletionListener() {

                @Override
                public void onCompletion(MediaPlayer mp) {
                    // TODO Auto-generated method stub
                    mp.release();
                }

            });   
            mp.start();

Send Message

This is works for me.

public void onCreate(Bundle savedInstanceState)
{
     super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
     btnSendSMS = (Button) findViewById(R.id.btnSendSMS);
      btnSendSMS.setOnClickListener(new View.OnClickListener()
      {
         public void onClick(View v)
         {
             sendSMS("5556", "Hi You got a message!");

                       /*here i can send message to emulator 5556. In Real device 
                                                               you can change number  */

          }
      });
   }
  //---sends an SMS message to another device---

   private void sendSMS(String phoneNumber, String message)
   {
       SmsManager sms = SmsManager.getDefault();
       sms.sendTextMessage(phoneNumber, null, message, null, null);
    }

}

You can add this line in AndroidManifest.xml

<uses-permission android:name="android.permission.SEND_SMS"/>

Take a look at this

This may helpful for you.

share|improve this answer

edited Jul 29 '12 at 3:59

answered Jul 25 '12 at 4:50 selva 355111