解决DrawerLayout的不能全屏滑动的问题

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用反射，调用下面的方法：如 setDrawerLeftEdgeSize(this, mDrawerLayout, 0.3f); 但这个比例不宜设置过大。public static void setDrawerLeftEdgeSize(Activity activity,DrawerLayout drawerLayout, float displayWidthPercentage) {if (activity == null || drawerLayout == null)return;try {// find ViewDragHelper and set it accessibleField leftDraggerField = drawerLayout.getClass().getDeclaredField("mLeftDragger");leftDraggerField.setAccessible(true);ViewDragHelper leftDragger = (ViewDragHelper) leftDraggerField.get(drawerLayout);// find edgesize and set is accessibleField edgeSizeField = leftDragger.getClass().getDeclaredField("mEdgeSize");edgeSizeField.setAccessible(true);int edgeSize = edgeSizeField.getInt(leftDragger);// set new edgesize// Point displaySize = new Point();DisplayMetrics dm = new DisplayMetrics();activity.getWindowManager().getDefaultDisplay().getMetrics(dm);edgeSizeField.setInt(leftDragger, Math.max(edgeSize,(int) (dm.widthPixels * displayWidthPercentage)));} catch (NoSuchFieldException e) {// ignore} catch (IllegalArgumentException e) {// ignore} catch (IllegalAccessException e) {// ignore}}

虽然没有理解其中的原理，但亲测可用！

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