深圳英文建站公司,物流网个人网站建设,公司网站模板怎么做,医药公司网站建设备案客户要求系统实现动态hdmi-4K与普通分辨率直接热切换#xff0c;先在菜单中做个试验#xff0c;设置中加个切换开关#xff0c;点击开关就可以直接切到hdmi-4K#xff0c;这个功能实现后可以通过插拔hdmi那个状态#xff08;sys/class/drm/card0-HDMI-A-1/status#xff…客户要求系统实现动态hdmi-4K与普通分辨率直接热切换先在菜单中做个试验设置中加个切换开关点击开关就可以直接切到hdmi-4K这个功能实现后可以通过插拔hdmi那个状态sys/class/drm/card0-HDMI-A-1/status直接实现切换测试代码也很简单方法如下
Index: packages/apps/Settings/src/com/android/settings/display/HdmiSettings.java--- packages/apps/Settings/src/com/android/settings/display/HdmiSettings.java (revision 907)packages/apps/Settings/src/com/android/settings/display/HdmiSettings.java (working copy)-27,6 27,7 import androidx.preference.SwitchPreference;import androidx.preference.PreferenceCategory;import androidx.preference.PreferenceScreen;
import androidx.preference.SwitchPreference;import com.android.internal.logging.nano.MetricsProto.MetricsEvent;import com.android.settings.HdmiListPreference;-39,6 40,8 import java.util.HashMap;import java.util.List;import java.util.Map;
import android.os.SystemProperties;
import java.io.*;import static com.android.settings.display.DrmDisplaySetting.DPY_STATUS_CONNECTED; -53,6 56,7 private static final String KEY_PRE_CATE Display;private static final String KEY_PRE_RESOLUTION Resolution;private static final String KEY_PRE_SCREEN_SCALE ScreenScale;private static final String KEY_PRE_HDMI_4K HDMIswitch4K;private static final String KEY_AUX_CATEGORY aux_category;private static final String KEY_AUX_SCREEN_VH aux_screen_vh;private static final String KEY_AUX_SCREEN_VH_LIST aux_screen_vhlist;-87,6 91,7 private PreferenceCategory mAuxCategory;private CheckBoxPreference mAuxScreenVH;private ListPreference mAuxScreenVHList;private SwitchPreference hdmi4kPreference;private Context mContext;private DisplayInfo mSelectDisplayInfo;private DisplayManager mDisplayManager;-114,6 119,10 if (mDestory MSG_SWITCH_DEVICE_STATUS ! msg.what) {return;}Log.d(TAG, fan msg.what msg.what);Log.d(TAG, fan switch control (ITEM_CONTROL) msg.obj);if (MSG_UPDATE_STATUS msg.what) {final ITEM_CONTROL control (ITEM_CONTROL) msg.obj;new Thread() {-177,6 186,7 if (SWITCH_STATUS_OFF_ON msg.arg1) {sendSwitchDeviceOffOnMsg(control, SWITCH_STATUS_ON);} else {Log.d(TAG, fan control control);sendUpdateStateMsg(control, 2000);}}-379,6 389,7 scalePreference.setOnPreferenceClickListener(this);category.addPreference(scalePreference);category.setEnabled(false);DisplayInfo displayInfo new DisplayInfo();displayInfo.setDisplayNo(display);mDisplayInfoList.put(display, displayInfo);-394,6 405,13 mAuxScreenVHList.setOnPreferenceChangeListener(this);mAuxScreenVHList.setOnPreferenceClickListener(this);mAuxCategory.removePreference(mAuxScreenVHList);//add hdmi4kPreference hdmi4kPreference (SwitchPreference) findPreference(KEY_PRE_HDMI_4K);hdmi4kPreference.setChecked(SystemProperties.getBoolean(persist.sys.hdmi4k, false));hdmi4kPreference.setOnPreferenceChangeListener(this);}private void sendSwitchDeviceOffOnMsg(ITEM_CONTROL control, int status) {-583,6 601,7 cate.setEnabled(false);}} else if (key.startsWith(KEY_PRE_RESOLUTION)) {Log.i(fan,key.replacekey.replace(KEY_PRE_SCREEN_SCALE, ));for (Map.EntryInteger, DisplayInfo entry : mDisplayInfoList.entrySet()) {int display Integer.parseInt(key.replace(KEY_PRE_RESOLUTION, ));if (display entry.getKey()) {-597,6 616,23 }return true;}public static void exe_cmd(String cmd){Process process2 null;DataOutputStream dos null;try{process2 Runtime.getRuntime().exec(su);dos new DataOutputStream(process2.getOutputStream());dos.writeBytes(cmd);dos.flush();dos.close();}catch (Exception e) { e.printStackTrace(); } }Overridepublic boolean onPreferenceChange(Preference preference, Object obj) {-662,6 698,30 //mDisplayManager.forceScheduleTraversalLocked();sendSwitchDeviceOffOnMsg(ITEM_CONTROL.REFRESH_DISPLAY_STATUS_INFO, SWITCH_STATUS_OFF_ON);}else if(preference hdmi4kPreference){for (Map.EntryInteger, DisplayInfo entry : mDisplayInfoList.entrySet()) {// int display Integer.parseInt(key.replace(KEY_PRE_RESOLUTION, ));if (0 entry.getKey()) {mSelectDisplayInfo entry.getValue();}}if (obj Boolean.TRUE) {Log.d(TAG, hdmi 4k is select) ;exe_cmd(setprop persist.vendor.resolution.aux 3840x216060);// exe_cmd(setprop persist.vendor.resolution.aux 1920x108060);exe_cmd(setprop vendor.display.timeline 1);exe_cmd(setprop persist.sys.hdmi4k true);}else{Log.d(TAG, hdmi 4k is close );exe_cmd(setprop persist.vendor.resolution.aux 720x48059.94-736-798-858-489-495-525-a);exe_cmd(setprop vendor.display.timeline 1);exe_cmd(setprop persist.sys.hdmi4k false);}}return true;}
