android4.4上全屏界面实现禁止状态栏下拉

附上我改动的方法：PhoneWindowManager.java里面的改动
— a/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -2863,7 +2863,9 @@ public class PhoneWindowManager implements WindowManagerPolicy {
@Override
public int adjustSystemUiVisibilityLw(int visibility) {

   mStatusBarController.adjustSystemUiVisibilityLw(mLastSystemUiFlags, visibility);

  if(Settings.System.getInt(mContext.getContentResolver(),"factorytest.touch.mode",0) == 0){

           mStatusBarController.adjustSystemUiVisibilityLw(mLastSystemUiFlags, visibility);

  }
   mNavigationBarController.adjustSystemUiVisibilityLw(mLastSystemUiFlags, visibility);
   // Reset any bits in mForceClearingStatusBarVisibility that

Acitvity里面使用例如以下方式：
— a/huaqin/source/packages/FactoryKitTest/src/com/android/huaqin/factory/TestTouchPanelLine2.java
+++ b/huaqin/source/packages/FactoryKitTest/src/com/android/huaqin/factory/TestTouchPanelLine2.java
@@ -32,6 +32,8 @@ import android.view.WindowManager;
import java.util.ArrayList;
import java.util.List;
+import android.provider.Settings;
+import android.app.StatusBarManager;
public class TestTouchPanelLine2 extends Activity {
private static final String TAG = “TestTouchPanelLine”;
@@ -54,6 +56,7 @@ public class TestTouchPanelLine2 extends Activity {
private static final int MSG_TEST_PANEL_NEXT_ITEM = 100;
private static final int MSG_TEST_PANEL_START = 101;
private static final int MSG_TEST_PANEL_STOP = 102;

  private StatusBarManager mStatusBarManager;
  private Handler mInHandler = new Handler() {
          @Override

@@ -94,6 +97,12 @@ public class TestTouchPanelLine2 extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
@@ -141,8 +150,22 @@ public class TestTouchPanelLine2 extends Activity {
.obtainMessage(FactoryTestMessage.MSG_OPEN_UI_OK);
msg.arg1 = (int) ID;
mOutHandler.sendMessage(msg);

          mStatusBarManager = (StatusBarManager) this.getSystemService(Context.STATUS_BAR_SERVICE);

          int state= StatusBarManager.DISABLE_EXPAND;

              state |= StatusBarManager.DISABLE_NOTIFICATION_ICONS;

              state |=  StatusBarManager.DISABLE_SYSTEM_INFO;

          mStatusBarManager.disable(state);
  }

```
      @Override
```
```
      protected void onPause() {
```

          int state =  StatusBarManager.DISABLE_NONE;

          mStatusBarManager.disable(state);

```
          super.onPause();
```

      }
  @Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {
          // 是否触发按键为back键

下面是从MTK Online 上面找到的解决方式。保留备用。
Google从KK開始添加了状态栏透明以及全屏界面有通知能够下拉状态栏的设计，而这个设计出现的隐患是设置了FULL_SCREEN的界面是无法禁止状态栏下拉的。这样对一些project測试app可能会造成一定的影响。可是以google默认的设计，应用端无法改动此设计来满足自己的需求。
MTK 内部已经开发提供新的接口来实现全屏界面禁止下拉状态栏，假设贵司的代码还没有这部分逻辑，请參考例如以下：

frameworks\base\core\java\android\view\View.java

public static final int SYSTEM_UI_FLAG_IMMERSIVE_STICKY = 0x00001000;

/**
```
* @hide
```
```
*
```

* NOTE: Flag for {@link #setSystemUiVisibility(int)}: It help user to disable transient

```
* status bar triggered by gesture
```
```
*/
```
public static final int SYSTEM_UI_FLAG_IMMERSIVE_GESTURE_ISOLATED = 0x00002000;

frameworks\base\policy\src\com\android\internal\policy\impl\PhoneWindowManager.java
// monitor for system gestures
mSystemGestures = new SystemGesturesPointerEventListener(context,
new SystemGesturesPointerEventListener.Callbacks() {
@Override
public void onSwipeFromTop() {

                   if (isGestureIsolated())

                       return;
                  if (mStatusBar != null) {
                      requestTransientBars(mStatusBar);
                  }
              }
              @Override
              public void onSwipeFromBottom() {

                   if (isGestureIsolated())

                       return;
                  if (mNavigationBar != null && mNavigationBarOnBottom) {
                      requestTransientBars(mNavigationBar);
                  }
              }
              @Override
              public void onSwipeFromRight() {

                   if (isGestureIsolated())

                       return;                   
                  if (mNavigationBar != null && !mNavigationBarOnBottom) {
                      requestTransientBars(mNavigationBar);
                  }
              }
              @Override
              public void onDebug() {
                  // no-op
              }

               private boolean isGestureIsolated() {

                   WindowState win = mFocusedWindow != null ? mFocusedWindow : mTopFullscreenOpaqueWindowState;

                   if (win != null && (win.getSystemUiVisibility() & View.SYSTEM_UI_FLAG_IMMERSIVE_GESTURE_ISOLATED) != 0)

```
                       return true;
```
```
                   else
```
```
                       return false;
```
```
               }
          });
```

請在改动完framework后，將测試app用setSystemUiVisibility的API加上SYSTEM_UI_FLAG_IMMERSIVE_GESTURE_ISOLATED的flag

android4.4上全屏界面实现禁止状态栏下拉

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