//片段fragmentimplementation 'me.yokeyword:fragmentation:1.3.6'implementation 'me.yokeyword:fragmentation-swipeback:1.3.6'

//ButterKnife（10.0必须适配AndroidX，9.0需要java8,快速生成插件android-butterknife-zelezny）implementation 'com.jakewharton:butterknife:9.0.0'annotationProcessor 'com.jakewharton:butterknife-compiler:9.0.0'

    implementation "com.android.support:multidex:1.0.3"

    defaultConfig {multiDexEnabled true}

  @Overrideprotected void attachBaseContext(Context base) {super.attachBaseContext(base);MultiDex.install(this);}

 <action android:name="android.intent.action.VIEW" />

 <item name="windowNoTitle">true</item>

    @Overridepublic void onCreate(@Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);DaggerCommonComponent.create().inject(this);}

    @Override
public void onCreate( @Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentState) {super.onCreate(savedInstanceState, persistentState);
}

recyclerView.setHasFixedSize(true);
recyclerView.setNestedScrollingEnabled(false);

 //RecyclerView滚动监听recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {@Overridepublic void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {super.onScrollStateChanged(recyclerView, newState);switch (newState){case RecyclerView.SCROLL_STATE_IDLE://现在不是滚动状态L.e("滚动的距离=="+direction);break;case RecyclerView.SCROLL_STATE_DRAGGING://手指 拖动break;case RecyclerView.SCROLL_STATE_SETTLING://惯性滚动break;}}@Overridepublic void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {super.onScrolled(recyclerView, dx, dy);//计算RecyclerView滚动的距离direction += dy;}});

recyclerView.getRecycledViewPool().setMaxRecycledViews(viewType,0);

 private static void setRetrofit(String defaultHost) {retrofit = new Retrofit.Builder().baseUrl(defaultHost).client(okHttpClient).addCallAdapterFactory(RxJava2CallAdapterFactory.create()).addConverterFactory(JSONObjectConverterFactory.create()).addConverterFactory(GsonConverterFactory.create()).build();}

tv.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG);

Drawable img = layout.getResources().getDrawable(R.drawable.icon);
// 调用setCompoundDrawables时，必须调用Drawable.setBounds()方法,否则图片不显示
img.setBounds(0, 0, img.getMinimumWidth(), img.getMinimumHeight());
textView.setCompoundDrawables(img, null, null, null); //设置左图标

 < TextViewandroid:layout_width ="wrap_content"android:layout_height ="wrap_content"android:focusable ="true"android:focusableInTouchMode ="true"android:marqueeRepeatLimit ="marquee_forever"android:ellipsize ="marquee"android:singleLine ="true"android:text ="那么什么是成功的人生，什么样的人又是成功人士呢？像科技界的比尔？盖茨 ，乔布斯 ，商界的巴菲特以及娱乐、体育界的大腕，无疑会被人们视为是成功者。但对于普通民众，如果用比尔？盖茨那样的标准来衡量是否成功似乎有些太苛刻，也不现实。在某种观念中，一个人的成功似乎与财富分不开的。很多国人到美国看到华人最常说的一句话是，你是个成功人士。为什么这么说？因为你能住300平方米、价值百万美元的房子，因为你开的车是奔驰 、宝马等豪华车，因为你有好的工作，年薪至少在10万美元以上。这也许是很多国人看待一个人成功与否的主要标志。但在美国人眼里，成功并不是与拥有众多财富密不可分。在1980年代，多数美国人把拥有更多财富看成人生成功的一个主要标志。而在一项最新的调查中，对于美国人来说，财富不再是成功的最重要组成部分。调查中22个成功人生的潜在组成因素中，“有很多钱”仅排名在第20位。" />

        etSearch.setOnEditorActionListener(new TextView.OnEditorActionListener() {@Overridepublic boolean onEditorAction(TextView v, int actionId, KeyEvent event) {if (actionId == EditorInfo.IME_ACTION_SEARCH){String keyWord = v.getText().toString();if (TextUtils.isEmpty(keyWord)){ToastUtil.showLong("请输入搜索内容！");return false;}//开始搜索keyWord相关内容}return false;}});

app:layout_behavior="@string/appbar_scrolling_view_behavior"

app:layout_behavior ="android.support.design.widget.AppBarLayout$ScrollingViewBehavior"

class MyWebViewClient extends WebViewClient{//不跳转到外部浏览器public boolean shouldOverrideUrlLoading(WebView view, String url) {view.loadUrl(url);return true;}}

private Bitmap loadBitmapFromView(View v) {int w = v.getWidth();int h = v.getHeight();Bitmap bmp = Bitmap.createBitmap(w, h, Bitmap.Config.RGB_565);Canvas c = new Canvas(bmp);c.drawColor(Color.WHITE);/** 如果不设置canvas画布为白色，则生成透明 */v.layout(0, 0, w, h);v.draw(c);return bmp;}

android.applicationVariants.all { variant ->variant.outputs.all{outputFileName  = "${applicationId.subSequence(applicationId.lastIndexOf(".")+1,applicationId.length())}_v${versionName}_${releaseTime()}_${baseName}.apk"}}

def releaseTime() {return new Date().format("yyyy-MM-dd", TimeZone.getTimeZone("UTC"))
}

android:scrollbars="vertical"

 textView.setMovementMethod(ScrollingMovementMethod.getInstance());

allList.stream().map(User::toString).forEach(L::e);

android {…dataBinding {enabled = true}
}

    private MyHandler myHandler = new MyHandler(_mActivity);private static class MyHandler extends Handler {WeakReference weakReference;public MyHandler(Activity activity) {weakReference = new WeakReference(activity);}@Overridepublic void handleMessage(Message msg) {}}

private Handler mHandler = new Handler(new Handler.Callback() {@Overridepublic boolean handleMessage(Message msg) {return false;}});

StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();StrictMode.setVmPolicy(builder.build());builder.detectFileUriExposure();

 Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {@Overridepublic void uncaughtException(Thread thread, final Throwable ex) {// Custom code here to handle the error.L.e("发生崩溃=="+thread.getName()+"  =="+ex.getMessage());}});

    private long firstTime = 0;@Overridepublic boolean onKeyUp(int keyCode, KeyEvent event) {switch (keyCode) {case KeyEvent.KEYCODE_BACK:long secondTime = System.currentTimeMillis();//如果两次按键时间间隔大于2秒，则不退出if (secondTime - firstTime > 2000) {Toast.makeText(this, "再按一次退出程序", Toast.LENGTH_SHORT).show();firstTime = secondTime;//更新firstTimereturn true;//两次按键小于2秒时，退出应用} else {System.exit(0);}break;}return super.onKeyUp(keyCode, event);}

    //再按一次退出程序private long firstTime = 0;@Overridepublic void onBackPressedSupport() {long secondTime = System.currentTimeMillis();if (getSupportFragmentManager().getBackStackEntryCount() == 1 && secondTime - firstTime > 2000) {Toast.makeText(this, "再按一次退出程序", Toast.LENGTH_SHORT).show();firstTime = secondTime;} else {super.onBackPressedSupport();}}

        try {Drawable drawable = Glide.with(mContext).load(item.getImage_url()).apply(RequestOptions.bitmapTransform(new BlurTransformation(15, 1))).submit().get();layoutRoot.setBackground(drawable);} catch (ExecutionException e) {e.printStackTrace();} catch (InterruptedException e) {e.printStackTrace();}

public class BlurTransformation extends BitmapTransformation {private static final int VERSION = 1;private static final String ID = "BlurTransformation." + VERSION;
private static int MAX_RADIUS = 25;private static int DEFAULT_DOWN_SAMPLING = 1;private int radius;private int sampling;public BlurTransformation() {this(MAX_RADIUS, DEFAULT_DOWN_SAMPLING);}public BlurTransformation(int radius) {this(radius, DEFAULT_DOWN_SAMPLING);}public BlurTransformation(int radius, int sampling) {this.radius = radius;this.sampling = sampling;}@Overrideprotected Bitmap transform(@NonNull BitmapPool pool, @NonNull Bitmap toTransform, int outWidth, int outHeight) {int width = toTransform.getWidth();int height = toTransform.getHeight();int scaledWidth = width / sampling;int scaledHeight = height / sampling;Bitmap bitmap = pool.get(scaledWidth, scaledHeight, Bitmap.Config.ARGB_8888);Canvas canvas = new Canvas(bitmap);canvas.scale(1 / (float) sampling, 1 / (float) sampling);Paint paint = new Paint();paint.setFlags(Paint.FILTER_BITMAP_FLAG);canvas.drawBitmap(toTransform, 0, 0, paint);bitmap = FastBlur.blur(bitmap, radius, true);return bitmap;}@Override public String toString() {return "BlurTransformation(radius=" + radius + ", sampling=" + sampling + ")";}@Override public boolean equals(Object o) {return o instanceof BlurTransformation &&((BlurTransformation) o).radius == radius &&((BlurTransformation) o).sampling == sampling;}@Override public int hashCode() {return ID.hashCode() + radius * 1000 + sampling * 10;}@Override public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {messageDigest.update((ID + radius + sampling).getBytes(CHARSET));}
}

  Glide.with(mContext).load(item.getImage_url()).listener(GlidePalette.with(item.getImage_url()).use(GlidePalette.Profile.VIBRANT).intoBackground(layoutRoot, GlidePalette.Swatch.RGB).crossfade(true)).into(imageView);

  package com.rongyan.clienttest;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class NetWorkUtil {//匹配C类地址的IPpublic static final String regexCIp = "^192\\.168\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)$";//匹配A类地址public static final String regexAIp = "^10\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)$";//匹配B类地址public static final String regexBIp = "^172\\.(1[6-9]|2\\d|3[0-1])\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)$";public static String getHostIp() {String hostIp;Pattern ip = Pattern.compile("(" + regexAIp + ")|" + "(" + regexBIp + ")|" + "(" + regexCIp + ")");Enumeration<NetworkInterface> networkInterfaces = null;try {networkInterfaces = NetworkInterface.getNetworkInterfaces();} catch (SocketException e) {e.printStackTrace();}InetAddress address;while (networkInterfaces.hasMoreElements()) {NetworkInterface networkInterface = networkInterfaces.nextElement();Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();while (inetAddresses.hasMoreElements()) {address = inetAddresses.nextElement();String hostAddress = address.getHostAddress();Matcher matcher = ip.matcher(hostAddress);if (matcher.matches()) {hostIp = hostAddress;return hostIp;}}}return null;}
}

    public String getWifiIp() {//获取wifi服务WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);//判断wifi是否开启if (!wifiManager.isWifiEnabled()) {wifiManager.setWifiEnabled(true);}WifiInfo wifiInfo = wifiManager.getConnectionInfo();int ipAddress = wifiInfo.getIpAddress();return intToIp(ipAddress);}//获取Wifi ip 地址private String intToIp(int i) {return (i & 0xFF) + "." +((i >> 8) & 0xFF) + "." +((i >> 16) & 0xFF) + "." +(i >> 24 & 0xFF);}

import org.json.JSONException;
import org.json.JSONObject;/*** 获取外网IP地址* @return*/public void GetNetIp() {new Thread(){@Overridepublic void run() {String line = "";URL infoUrl = null;InputStream inStream = null;try {infoUrl = new URL("http://pv.sohu.com/cityjson?ie=utf-8");URLConnection connection = infoUrl.openConnection();HttpURLConnection httpConnection = (HttpURLConnection) connection;int responseCode = httpConnection.getResponseCode();if (responseCode == HttpURLConnection.HTTP_OK) {inStream = httpConnection.getInputStream();BufferedReader reader = new BufferedReader(new InputStreamReader(inStream, "utf-8"));StringBuilder strber = new StringBuilder();while ((line = reader.readLine()) != null)strber.append(line + "\n");inStream.close();// 从反馈的结果中提取出IP地址int start = strber.indexOf("{");int end = strber.indexOf("}");String json = strber.substring(start, end + 1);if (json != null) {JSONObject jsonObject = null;try {jsonObject = new JSONObject(json);} catch (JSONException e) {e.printStackTrace();}line = jsonObject.optString("cip");}L.e("line=="+line);Message msg = new Message();msg.what = 1;msg.obj = line;}} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}.start();}

ValueAnimator animator = ValueAnimator.ofInt(0xffffff00,0xff0000ff);
animator.setEvaluator(new ArgbEvaluator());
animator.setDuration(3000);
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {@Overridepublic void onAnimationUpdate(ValueAnimator animation) {int curValue = (int)animation.getAnimatedValue();tv.setBackgroundColor(curValue);

<span class="token punctuation">}</span>