Android9.0 MTK 平板横屏方案修改(强制app横屏 + 开机logo/动画+关机充电横屏 + RecoveryUI 横屏)

2023-09-10 08:20| 来源: 网络整理| 查看: 265

文章较长建议先收藏再看

拆解步骤

1、app 强制横屏显示，无视 android:screenOrientation=“portrait” 属性

2、屏幕触摸坐标修改为横屏

3、开机动画横屏

4、开机logo、关机充电动画横屏

5、RecoveryUI 横屏

上代码

##1、app 强制横屏显示

修改 rotationForOrientationLw(), 默认返回 270

frameworks\base\services\core\java\com\android\server\policy\PhoneWindowManager.java

@Override public int rotationForOrientationLw(int orientation, int lastRotation, boolean defaultDisplay) { .... synchronized (mLock) { ... default: // For USER, UNSPECIFIED, NOSENSOR, SENSOR and FULL_SENSOR, // just return the preferred orientation we already calculated. if (preferredRotation >= 0) { return preferredRotation; } // return Surface.ROTATION_0; return Surface.ROTATION_270;//cczheng add for land scap } } }

activity 默认强制属性为 SCREEN_ORIENTATION_LANDSCAPE

frameworks\base\services\core\java\com\android\server\wm\WindowManagerService.java

boolean updateOrientationFromAppTokensLocked(int displayId, boolean forceUpdate) { long ident = Binder.clearCallingIdentity(); try { final DisplayContent dc = mRoot.getDisplayContent(displayId); // final int req = dc.getOrientation(); int req = android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;//cczheng add for land scap if (req != dc.getLastOrientation() || forceUpdate) { if (DEBUG_ORIENTATION) { Slog.v(TAG, "updateOrientation: req= " + req + ", mLastOrientation= " + dc.getLastOrientation(), new Throwable("updateOrientation")); } dc.setLastOrientation(req); //send a message to Policy indicating orientation change to take //action like disabling/enabling sensors etc., // TODO(multi-display): Implement policy for secondary displays. if (dc.isDefaultDisplay) { mPolicy.setCurrentOrientationLw(req); } return dc.updateRotationUnchecked(forceUpdate); } return false; } finally { Binder.restoreCallingIdentity(ident); } }

DisPlayContent 显示 mRotation 默认改为 3 (270)

frameworks\base\services\core\java\com\android\server\wm\DisplayContent.java

/** * Current rotation of the display. * Constants as per {@link android.view.Surface.Rotation}. * * @see #updateRotationUnchecked() */ // private int mRotation = 0; private int mRotation = 3;//cczheng add for land scap

修改默认值 config_reverseDefaultRotation 为 true，翻转显示角度

frameworks\base\core\res\res\values\config.xml

【本文地址】

公司简介

联系我们