wyon

private static void scaleImage(final Activity activity, final View view, int drawableResId) {
		// 获取屏幕的高宽
		Point outSize = new Point();
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
			activity.getWindow().getWindowManager().getDefaultDisplay().getSize(outSize);
		} else {
			outSize.x = activity.getWindow().getWindowManager().getDefaultDisplay().getWidth();
			outSize.y = activity.getWindow().getWindowManager().getDefaultDisplay().getHeight();
		}

wyon

        ActivityManager am = ((ActivityManager)mAppContext.getSystemService(Context.ACTIVITY_SERVICE));
        List<ActivityManager.RunningAppProcessInfo> processInfos = am.getRunningAppProcesses();
        String mainProcessName = mAppContext.getPackageName();
        int myPid = Process.myPid();
        for (ActivityManager.RunningAppProcessInfo info : processInfos) {
            if (info.pid == myPid && mainProcessName.equals(info.processName)) {
                return true;
            }
        }
        return false;

wyon

String mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension("txt");
if (mime == null) {
  mime = "application/octet-stream";
}

wyon

// 二叉树

  // 节点construct
  function Node(data, left, right) {
		this.data = data;
		this.left = left;
		this.right = right;
		this.show = show;
	}

wyon

public static StringBuilder printMotionEvent(MotionEvent event, StringBuilder stringBuilder) {
		if (stringBuilder == null) {
			stringBuilder = new StringBuilder();
		}

		stringBuilder.append("[RawAction:0x").append(Integer.toHexString(event.getAction()))
				.append("");
		switch (event.getAction()) {
			case MotionEvent.ACTION_DOWN:
				stringBuilder.append("(down)");

wyon

public class RoundCornerImageView extends ImageView {

    private final RectF mTmpRectF = new RectF();

    private int topLeftRadius;
    private int topRightRadius;
    private int bottomLeftRadius;
    private int bottomRightRadius;

    // todo canvas.clipPath(Round Rect)?

wyon

public class CenterBottomRoundImageView extends RoundCornerImageView {

    private Matrix mMatrix;

    public CenterBottomRoundImageView(Context context) {
        super(context);
        init();
    }

    public CenterBottomRoundImageView(Context context, @Nullable AttributeSet attrs) {

wyon

private static class DividerDecoration extends RecyclerView.ItemDecoration {

        final int bottomOffset = DisplayUtil.dip2px(15);
        final int hOffset = DisplayUtil.dip2px(7);
        final ShadowHelper mShadowHelper;

        DividerDecoration(Context context) {
            mShadowHelper = new ShadowHelper(context);
        }

wyon

package com.wyon.util;

import android.os.Build;
import android.support.annotation.RequiresApi;
import android.util.Log;
import android.view.Choreographer;

/**
 * 功能：分析丢帧情况和帧绘制耗时
 * 描述：需要分析的代码前后加上 FrameAnalyze.start(), FrameAnalyze.stop()

wyon

public class BlockDetect {
  
  // BlockDetectByPrinter
  public static void start() {
        Looper.getMainLooper().setMessageLogging(new Printer() {

            private static final String START = ">>>>> Dispatching";
            private static final String END = "<<<<< Finished";

            @Override