系统窗口的调用

直接上代码吧，intent进行调用

@Override
	public void onClick(View view){
		try{
			switch (view.getId()){
				case R.id.btnCall://直接拨号
					Intent callIntent = new Intent(Intent.ACTION_CALL,
							Uri.parse("tel:[phone]"));
					startActivity(callIntent);
					break;
				case R.id.btnTouchDialer:  //直接拨号
					Intent touchDialerIntent = new Intent(
							"com.android.phone.action.TOUCH_DIALER");
					startActivity(touchDialerIntent);
					break;
				case R.id.btnDial://将电话号传入拨号程序
					Intent dialIntent = new Intent(Intent.ACTION_DIAL,
							Uri.parse("tel:[phone]"));
					startActivity(dialIntent);
					break;
				case R.id.btnWeb://浏览网页
					Intent webIntent = new Intent(Intent.ACTION_VIEW,
							Uri.parse("http://blog.csdn.net/nokiaguy"));
					startActivity(webIntent);
					break;
				case R.id.btnContactList://查看联系人
					Intent contactListIntent = new Intent(
							"com.android.contacts.action.LIST_CONTACTS");
					startActivity(contactListIntent);
					break;
				case R.id.btnSettings://系统设置
					Intent settingsIntent = new Intent(
							"android.settings.SETTINGS");
					startActivity(settingsIntent);
					break;
				case R.id.btnWifiSettings://wiki设置
					Intent wifiSettingsIntent = new Intent(
							"android.settings.WIFI_SETTINGS");
					startActivity(wifiSettingsIntent);
					break;
				case R.id.btnAudio://调用音频程序
					Intent audioIntent = new Intent(Intent.ACTION_GET_CONTENT);
					audioIntent.setType("audio/*");
					startActivity(Intent.createChooser(audioIntent, "选择音频程序"));
					break;
				case R.id.btnGoHome://回到首页
					Intent gohomeIntent = new Intent("android.intent.action.MAIN");
					gohomeIntent.addCategory("android.intent.category.HOME");
					startActivity(gohomeIntent);
					break;
			}
		}
		catch (Exception e){
			Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
		}
	}