环境
win10 + android studio
文件
IRotationWatcher.aidl
package android.view;interface IRotationWatcher { void onRotationChanged(int rotation);}IWindowManager.aidl
// IWindowManager.aidlpackage android.view;import android.graphics.Point;import android.view.IRotationWatcher;/*** * Define this same aidl file here to make it compiling when calling system hidden APIs. * * According to the 'delegation model' for loading classes on Java plattform, the actual * implementation of IWindowManager from the Framework will be applied. */interface IWindowManager { void getInitialDisplaySize(int displayId, out Point size); void getBaseDisplaySize(int displayId, out Point size); void getRealDisplaySize(out Point paramPoint); /** * Remove a rotation watcher set using watchRotation. * @hide */ void removeRotationWatcher(IRotationWatcher watcher);}配置
在我的项目内创立aidl文件目录
留神我的项目包名必须与零碎包名统一否则报错
文件配置好后须要
build->make project
这样在我的项目文件内就能够应用了
DisplayUtil.java 工具类
package com.xxx.xxx;import android.annotation.SuppressLint;import android.content.Context;import android.graphics.Bitmap;import android.graphics.Matrix;import android.graphics.Point;import android.os.Build;import android.os.IBinder;import android.os.RemoteException;import android.view.Display;import android.view.IRotationWatcher;import android.view.IWindowManager;import java.lang.reflect.Method;/** Created by Sean on 5/27/17. *//* package */ final class DisplayUtil { private IWindowManager iWindowManager; @SuppressLint("PrivateApi") public DisplayUtil() { Class<?> serviceManagerClass = null; try { serviceManagerClass = Class.forName("android.os.ServiceManager"); Method getService = serviceManagerClass.getDeclaredMethod("getService", String.class); // WindowManager Object ws = getService.invoke(null, Context.WINDOW_SERVICE); iWindowManager = IWindowManager.Stub.asInterface((IBinder) ws); } catch (Exception e) { e.printStackTrace(); } } /** * * Retrieves the device actual display size. * * @return {@link Point} */ Point getCurrentDisplaySize() { try { Point localPoint = new Point(); // Resolve the screen resolution for devices with OS version 4.3+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) { iWindowManager.getInitialDisplaySize(0, localPoint); } else { // void getDisplaySize(out Point size) Point out = new Point(); iWindowManager .getClass() .getMethod("getDisplaySize", Point.class) .invoke(iWindowManager, out); if (out.x > 0 && out.y > 0) { localPoint = out; } } System.out.println(">>> Dimension: " + localPoint); return localPoint; } catch (Exception e) { e.printStackTrace(); } return null; } /** * Retrieve the current orientation of the primary screen. * * @return Constant as per {@link android.view.Surface.Rotation}. * @see Display#DEFAULT_DISPLAY */ int getScreenRotation() { int rotation = 0; try { Class<?> cls = iWindowManager.getClass(); try { rotation = (Integer) cls.getMethod("getRotation").invoke(iWindowManager); } catch (NoSuchMethodException e) { rotation = (Integer) cls.getMethod("getDefaultDisplayRotation").invoke(iWindowManager); } } catch (Exception e) { e.printStackTrace(); } System.out.println(">>> Screen rotation: " + rotation); return rotation; } void setRotateListener(RotateListener listener) { try { Class<?> clazz = iWindowManager.getClass(); IRotationWatcher watcher = new IRotationWatcher.Stub() { @Override public void onRotationChanged(int rotation) throws RemoteException { if (listener != null) { listener.onRotate(rotation); } } }; try { clazz.getMethod("watchRotation", IRotationWatcher.class, int.class) .invoke(iWindowManager, watcher, Display.DEFAULT_DISPLAY); // 26+ } catch (NoSuchMethodException ex) { clazz.getMethod("watchRotation", IRotationWatcher.class) .invoke(iWindowManager, watcher); } } catch (Exception e) { e.printStackTrace(); } } Bitmap rotateBitmap(Bitmap bitmap, float degree) { Matrix matrix = new Matrix(); matrix.postRotate(degree); return Bitmap.createBitmap( bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); } interface RotateListener { void onRotate(int rotate); }}应用
DisplayUtil du = new DisplayUtil();Point size = du.getCurrentDisplaySize();// 屏幕分辩率System.out.println(size.x);System.out.println(size.y);起源：https://github.com/rayworks/D...