Intent intent=new Intent(); intent.setAction(Intent.ACTION_SEND); intent.setType("text/plain"); intent.putExtra(Intent.EXTRA_TEXT,"I am a boy"); startActivity(intent);

Intent intent=new Intent(); intent.setAction(Intent.ACTION_GET_CONTENT); intent.setType("image/*"); startActivity(intent);

Intent intent=new Intent(); intent.setAction(Intent.ACTION_VIEW); Uri uri=Uri.parse("www.baidu.com"); intent.setData(uri); startActivity(intent);

//進(jìn)入撥號(hào)頁(yè)面（不需要CALL_PHONE權(quán)限） Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + 10086)); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); //用intent啟動(dòng)撥打電話,直接撥打（需要CALL_PHONE權(quán)限） Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + 10086)); startActivity(intent);

// 新的APK的文件名 String str = "newUpdate.apk"; // 新APK在存儲(chǔ)卡上的位置 String fileName = Environment.getExternalStorageDirectory() + str; // 通過(guò)啟動(dòng)1個(gè)Intent讓系統(tǒng)來(lái)幫你安裝新的APK Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File(fileName)), "application/vnd.android.package-archive"); startActivity(intent);

public static void calendar(Context context) { try { Intent i = new Intent(); ComponentName cn = null; if (Integer.parseInt(Build.VERSION.SDK) >= 8) { cn = new ComponentName("com.android.calendar", "com.android.calendar.LaunchActivity"); } else { cn = new ComponentName("com.google.android.calendar", "com.android.calendar.LaunchActivity"); } i.setComponent(cn); context.startActivity(i); } catch (ActivityNotFoundException e) { // TODO: handle exception Logg.e("ActivityNotFoundException", e.toString()); } }

Intent cIntent = new Intent(Intent.ACTION_VIEW); Intent chooser = Intent.createChooser(cIntent, "選擇打開(kāi)方式"); startActivity(chooser);

Intent mIntent = new Intent(); ComponentName mComp = new ComponentName("com.juxin.jfcc", "com.juxin.jfcc.activity.login.RegisterActivity");//注意AcitivityName(目標(biāo)利用程序)要完全的，帶包名的PackageName的 mIntent.setComponent(mComp); PackageManager packageManager = getPackageManager(); List activities = packageManager.queryIntentActivities(mIntent, PackageManager.MATCH_DEFAULT_ONLY); boolean isIntentSafe = activities.size() > 0; showBigToast(activities.size() + "==");

// android:exported="true"所要調(diào)劑的activity必須有這個(gè)屬性 try { Intent mIntent = new Intent(); ComponentName mComp = new ComponentName("com.juxin.jfcc", "com.juxin.jfcc.activity.login.RegisterActivity");//注意AcitivityName(目標(biāo)利用程序)要完全的，帶包名的PackageName的 mIntent.setComponent(mComp); startActivity(mIntent); } catch (Exception e) { showBigToast("未找到可用利用程序！"); }

<activity android:name="ShareActivity"> <intent-filter> <action android:name="android.intent.action.SEND"/> <category android:name="android.intent.category.DEFAULT"/> <data android:mimeType="text/plain"/> <data android:mimeType="image/*"/> intent-filter> activity>

/** * 將布局文件保存成圖片文件 */ public static void saveLayout2File(View view, final SaveFileListener saveFileListener) { handler = new Handler(Looper.getMainLooper()); final Bitmap bmp = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888); view.draw(new Canvas(bmp)); File dir = new File(imagePath); if (!dir.exists()) { dir.mkdirs(); } final String photoUrl = imagePath + System.currentTimeMillis() + ".png";//換成自己的圖片保存路徑 final File file = new File(photoUrl); new Thread() { @Override public void run() { try { final boolean bitMapOk = bmp.compress(Bitmap.CompressFormat.PNG, 100, new FileOutputStream(file)); handler.post(new Runnable() { @Override public void run() { if (saveFileListener != null) { saveFileListener.onSaveFile(bitMapOk, photoUrl); } } }); } catch (FileNotFoundException e) { e.printStackTrace(); } } }.start(); }

/** * @return SD卡是不是存在 */ public static boolean existSDCard() { return (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)); }

/** * 單位類(lèi)型 */ public interface Unit { int BYTE = 0, KBYTE = 1, MBYTE = 2; } /** * @param unit 單位類(lèi)型：0：Byte，1：KB，other:MB * @return SD卡剩余空間 */ public static long getSDFreeSize(int unit) { //獲得SD卡文件路徑 File path = Environment.getExternalStorageDirectory(); StatFs sf = new StatFs(path.getPath()); //獲得單個(gè)數(shù)據(jù)塊的大小(Byte) long blockSize = sf.getBlockSize(); //空閑的數(shù)據(jù)塊的數(shù)量 long freeBlocks = sf.getAvailableBlocks(); //返回SD卡空閑大小 if (unit == 0) { return freeBlocks * blockSize; //單位Byte } else if (unit == 1) { return (freeBlocks * blockSize) / 1024; //單位KB } else { return (freeBlocks * blockSize) / 1024 / 1024; //單位MB } } /** * @return SD卡總?cè)萘? */ public static long getSDAllSize() { //獲得SD卡文件路徑 File path = Environment.getExternalStorageDirectory(); StatFs sf = new StatFs(path.getPath()); //獲得單個(gè)數(shù)據(jù)塊的大小(Byte) long blockSize = sf.getBlockSize(); //獲得所有數(shù)據(jù)塊數(shù) long allBlocks = sf.getBlockCount(); //返回SD卡大小 //return allBlocks * blockSize; //單位Byte //return (allBlocks * blockSize)/1024; //單位KB return (allBlocks * blockSize) / 1024 / 1024; //單位MB }

/** * 圖象的放大縮小方法 * * @param src 源位圖對(duì)象 * @param scaleX 寬度比例系數(shù) * @param scaleY 高度比例系數(shù) * @return 返回位圖對(duì)象 */ public static Bitmap zoomBitmap(Bitmap src, float scaleX, float scaleY) { Matrix matrix = new Matrix(); matrix.setScale(scaleX, scaleY); return Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true); }

/** * 圖象放大縮小--根據(jù)寬度和高度 * * @param src * @param width * @param height * @return */ public static Bitmap zoomBimtap(Bitmap src, int width, int height) { return Bitmap.createScaledBitmap(src, width, height, true); }

/** * Bitmap轉(zhuǎn)byte[] * * @param bitmap * @return */ public static byte[] bitmapToByte(Bitmap bitmap) { ByteArrayOutputStream out = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.PNG, 100, out); return out.toByteArray(); }

/** * byte[]轉(zhuǎn)Bitmap * * @param data * @return */ public static Bitmap byteToBitmap(byte[] data) { if (data.length != 0) { return BitmapFactory.decodeByteArray(data, 0, data.length); } return null; }

/** * 繪制帶圓角的圖象 * * @param src * @param radius * @return */ public static Bitmap createRoundedCornerBitmap(Bitmap src, int radius) { final int w = src.getWidth(); final int h = src.getHeight(); // 高清量32位圖 Bitmap bitmap = Bitmap.createBitmap(w, h, Config.ARGB_8888); Paint paint = new Paint(); Canvas canvas = new Canvas(bitmap); canvas.drawARGB(0, 0, 0, 0); paint.setColor(0xff424242); // 避免邊沿的鋸齒 paint.setFilterBitmap(true); Rect rect = new Rect(0, 0, w, h); RectF rectf = new RectF(rect); // 繪制帶圓角的矩形 canvas.drawRoundRect(rectf, radius, radius, paint); // 取兩層繪制交集，顯示上層 paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN)); // 繪制圖象 canvas.drawBitmap(src, rect, rect, paint); return bitmap; }

/** * 創(chuàng)建選中帶提示圖片 * * @param context * @param srcId * @param tipId * @return */ public static Drawable createSelectedTip(Context context, int srcId, int tipId) { Bitmap src = BitmapFactory.decodeResource(context.getResources(), srcId); Bitmap tip = BitmapFactory.decodeResource(context.getResources(), tipId); final int w = src.getWidth(); final int h = src.getHeight(); Bitmap bitmap = Bitmap.createBitmap(w, h, Config.ARGB_8888); Paint paint = new Paint(); Canvas canvas = new Canvas(bitmap); //繪制原圖 canvas.drawBitmap(src, 0, 0, paint); //繪制提示圖片 canvas.drawBitmap(tip, (w - tip.getWidth()), 0, paint); return bitmapToDrawable(bitmap); }

/** * 帶倒影的圖象 * * @param src * @return */ public static Bitmap createReflectionBitmap(Bitmap src) { // 兩個(gè)圖象間的空隙 final int spacing = 4; final int w = src.getWidth(); final int h = src.getHeight(); // 繪制高質(zhì)量32位圖 Bitmap bitmap = Bitmap.createBitmap(w, h + h / 2 + spacing, Config.ARGB_8888); // 創(chuàng)建燕X軸的倒影圖象 Matrix m = new Matrix(); m.setScale(1, -1); Bitmap t_bitmap = Bitmap.createBitmap(src, 0, h / 2, w, h / 2, m, true); Canvas canvas = new Canvas(bitmap); Paint paint = new Paint(); // 繪制原圖象 canvas.drawBitmap(src, 0, 0, paint); // 繪制倒影圖象 canvas.drawBitmap(t_bitmap, 0, h + spacing, paint); // 線性渲染-沿Y軸高到低渲染 Shader shader = new LinearGradient(0, h + spacing, 0, h + spacing + h / 2, 0x70ffffff, 0x00ffffff, Shader.TileMode.MIRROR); paint.setShader(shader); // 取兩層繪制交集，顯示下層。 paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN)); // 繪制渲染倒影的矩形 canvas.drawRect(0, h + spacing, w, h + h / 2 + spacing, paint); return bitmap; }

/** * 獨(dú)立的倒影圖象 * * @param src * @return */ public static Bitmap createReflectionBitmapForSingle(Bitmap src) { final int w = src.getWidth(); final int h = src.getHeight(); // 繪制高質(zhì)量32位圖 Bitmap bitmap = Bitmap.createBitmap(w, h / 2, Config.ARGB_8888); // 創(chuàng)建沿X軸的倒影圖象 Matrix m = new Matrix(); m.setScale(1, -1); Bitmap t_bitmap = Bitmap.createBitmap(src, 0, h / 2, w, h / 2, m, true); Canvas canvas = new Canvas(bitmap); Paint paint = new Paint(); // 繪制倒影圖象 canvas.drawBitmap(t_bitmap, 0, 0, paint); // 線性渲染-沿Y軸高到低渲染 Shader shader = new LinearGradient(0, 0, 0, h / 2, 0x70ffffff, 0x00ffffff, Shader.TileMode.MIRROR); paint.setShader(shader); // 取兩層繪制交集。顯示下層。 paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN)); // 繪制渲染倒影的矩形 canvas.drawRect(0, 0, w, h / 2, paint); return bitmap; }

/** *灰色圖象 */ public static Bitmap createGreyBitmap(Bitmap src) { final int w = src.getWidth(); final int h = src.getHeight(); Bitmap bitmap = Bitmap.createBitmap(w, h, Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); Paint paint = new Paint(); // 色彩變換的矩陣 ColorMatrix matrix = new ColorMatrix(); // saturation 飽和度值，最小可設(shè)為0，此時(shí)對(duì)應(yīng)的是灰度圖；為1表示飽和度不變，設(shè)置大于1，就顯示過(guò)飽和 matrix.setSaturation(0); ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix); paint.setColorFilter(filter); canvas.drawBitmap(src, 0, 0, paint); return bitmap; }

/** * 保存圖片 * * @param src * @param filepath * @param format:[Bitmap.CompressFormat.PNG,Bitmap.CompressFormat.JPEG] * @return */ public static boolean saveImage(Bitmap src, String filepath, CompressFormat format) { boolean rs = false; File file = new File(filepath); try { FileOutputStream out = new FileOutputStream(file); if (src.compress(format, 100, out)) { out.flush(); //寫(xiě)入流 } out.close(); rs = true; } catch (Exception e) { e.printStackTrace(); } return rs; }

/** * 添加水印效果 * * @param src 源位圖 * @param watermark 水印 * @param direction 方向 * @param spacing 間距 * @return */ public static Bitmap createWatermark(Bitmap src, Bitmap watermark, int direction, int spacing) { final int w = src.getWidth(); final int h = src.getHeight(); Bitmap bitmap = Bitmap.createBitmap(w, h, Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); canvas.drawBitmap(src, 0, 0, null); if (direction == LEFT_TOP) { canvas.drawBitmap(watermark, spacing, spacing, null); } else if (direction == LEFT_BOTTOM) { canvas.drawBitmap(watermark, spacing, h - watermark.getHeight() - spacing, null); } else if (direction == RIGHT_TOP) { canvas.drawBitmap(watermark, w - watermark.getWidth() - spacing, spacing, null); } else if (direction == RIGHT_BOTTOM) { canvas.drawBitmap(watermark, w - watermark.getWidth() - spacing, h - watermark.getHeight() - spacing, null); } return bitmap; }

/** * 合成圖象 * * @param direction * @param bitmaps * @return */ public static Bitmap composeBitmap(int direction, Bitmap... bitmaps) { if (bitmaps.length < 2) { return null; } Bitmap firstBitmap = bitmaps[0]; for (Bitmap bitmap : bitmaps) { firstBitmap = composeBitmap(firstBitmap, bitmap, direction); } return firstBitmap; } /** * 合成兩張圖象 * * @param firstBitmap * @param secondBitmap * @param direction * @return */ private static Bitmap composeBitmap(Bitmap firstBitmap, Bitmap secondBitmap, int direction) { if (firstBitmap == null) { return null; } if (secondBitmap == null) { return firstBitmap; } final int fw = firstBitmap.getWidth(); final int fh = firstBitmap.getHeight(); final int sw = secondBitmap.getWidth(); final int sh = secondBitmap.getHeight(); Bitmap bitmap = null; Canvas canvas = null; if (direction == TOP) { bitmap = Bitmap.createBitmap(sw > fw ? sw : fw, fh + sh, Config.ARGB_8888); canvas = new Canvas(bitmap); canvas.drawBitmap(secondBitmap, 0, 0, null); canvas.drawBitmap(firstBitmap, 0, sh, null); } else if (direction == BOTTOM) { bitmap = Bitmap.createBitmap(fw > sw ? fw : sw, fh + sh, Config.ARGB_8888); canvas = new Canvas(bitmap); canvas.drawBitmap(firstBitmap, 0, 0, null); canvas.drawBitmap(secondBitmap, 0, fh, null); } else if (direction == LEFT) { bitmap = Bitmap.createBitmap(fw + sw, sh > fh ? sh : fh, Config.ARGB_8888); canvas = new Canvas(bitmap); canvas.drawBitmap(secondBitmap, 0, 0, null); canvas.drawBitmap(firstBitmap, sw, 0, null); } else if (direction == RIGHT) { bitmap = Bitmap.createBitmap(fw + sw, fh > sh ? fh : sh, Config.ARGB_8888); canvas = new Canvas(bitmap); canvas.drawBitmap(firstBitmap, 0, 0, null); canvas.drawBitmap(secondBitmap, fw, 0, null); } return bitmap; }

/** * 簡(jiǎn)單的截圖（View獲得bitmap，保存文件） * * @param view 需要轉(zhuǎn)成圖片的View * @param filePath 存儲(chǔ)路徑 * @return 返復(fù)生成的bitmap */ public static Bitmap screenShot(View view, String filePath) { long start = System.currentTimeMillis(); // 獲得屏幕 view.setDrawingCacheEnabled(true);//開(kāi)啟cache view.buildDrawingCache(); Bitmap bmp = view.getDrawingCache(); Logg.i("===========bmp============" + bmp); if (bmp != null) { try { // 圖片文件路徑 filePath = TextUtils.isEmpty(filePath) ? FilePath.imagePath + File.separator + System.currentTimeMillis() + "screenshot.png" : filePath; File fileF = new File(FilePath.imagePath); if (!fileF.exists()) { fileF.mkdirs(); } File file = new File(filePath); FileOutputStream os = new FileOutputStream(file); bmp.compress(Bitmap.CompressFormat.PNG, 100, os); os.flush(); os.close(); } catch (Exception e) { } } long end = System.currentTimeMillis(); Logg.i("===========截圖需要的時(shí)間============" + (end - start)); return bmp; }

/** * 調(diào)用文件選擇軟件來(lái)選擇文件 **/ public static void showFileChooser(Activity activity, int requestCode, String name) { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType(name + "/*"); intent.addCategory(Intent.CATEGORY_OPENABLE); try { activity.startActivityForResult(Intent.createChooser(intent, "請(qǐng)選擇1個(gè)要上傳的文件"), requestCode); } catch (android.content.ActivityNotFoundException ex) { // Potentially direct the user to the Market with a Dialog Toast.makeText(activity, "請(qǐng)安裝文件管理器", Toast.LENGTH_SHORT) .show(); } } /** * 調(diào)用文件選擇軟件來(lái)選擇文件 **/ public static void showForderChooser(Activity activity, int requestCode) { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("forder/*"); intent.addCategory(Intent.CATEGORY_OPENABLE); try { activity.startActivityForResult(Intent.createChooser(intent, "請(qǐng)選擇1個(gè)要上傳的文件"), requestCode); } catch (android.content.ActivityNotFoundException ex) { // Potentially direct the user to the Market with a Dialog Toast.makeText(activity, "請(qǐng)安裝文件管理器", Toast.LENGTH_SHORT) .show(); } }

/** * MD5處理字符串 */ public class MD5 { public static String md5(String string) { byte[] hash; try { hash = MessageDigest.getInstance("MD5").digest(string.getBytes("UTF⑻")); } catch (NoSuchAlgorithmException e) { throw new RuntimeException("Huh, MD5 should be supported?", e); } catch (UnsupportedEncodingException e) { throw new RuntimeException("Huh, UTF⑻ should be supported?", e); } StringBuilder hex = new StringBuilder(hash.length * 2); for (byte b : hash) { if ((b & 0xFF) < 0x10) hex.append("0"); hex.append(Integer.toHexString(b & 0xFF)); } return hex.toString(); } }

/** * 檢查網(wǎng)絡(luò)是不是開(kāi)啟 */ public static boolean isNetworkAvailable(Context context) { // 取得網(wǎng)絡(luò)系統(tǒng)連接服務(wù) ConnectivityManager manager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (manager == null) { return false; } NetworkInfo networkinfo = manager.getActiveNetworkInfo(); return !(networkinfo == null || !networkinfo.isAvailable()); }

/** * 2維碼生成工具類(lèi) */ public class QRCodeUtil { private static Handler handler; /** * 生成2維碼Bitmap * * @param content 內(nèi)容 * @param widthPix 圖片寬度 * @param heightPix 圖片高度 * @param logoBm 2維碼中心的Logo圖標(biāo)（可以為null） * @param filePath 用于存儲(chǔ)2維碼圖片的文件路徑 * @return 生成2維碼及保存文件是不是成功 */ public static boolean createQRImage(String content, int widthPix, int heightPix, Bitmap logoBm, String filePath) { try { if (content == null || "".equals(content)) { return false; } //配置參數(shù) Map hints = new HashMap<>(); hints.put(EncodeHintType.CHARACTER_SET, "utf⑻"); //容錯(cuò)級(jí)別 hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H); //設(shè)置空白邊距的寬度 hints.put(EncodeHintType.MARGIN, 1); //default is 4 // 圖象數(shù)據(jù)轉(zhuǎn)換，使用了矩陣轉(zhuǎn)換 BitMatrix bitMatrix = new QRCodeWriter().encode(content, BarcodeFormat.QR_CODE, widthPix, heightPix, hints); int[] pixels = new int[widthPix * heightPix]; // 下面這里依照2維碼的算法，逐一生成2維碼的圖片， // 兩個(gè)for循環(huán)是圖片橫列掃描的結(jié)果 for (int y = 0; y < heightPix; y++) { for (int x = 0; x < widthPix; x++) { if (bitMatrix.get(x, y)) { pixels[y * widthPix + x] = 0xff000000; } else { pixels[y * widthPix + x] = 0xffffffff; } } } // 生成2維碼圖片的格式，使用ARGB_8888 Bitmap bitmap = Bitmap.createBitmap(widthPix, heightPix, Bitmap.Config.ARGB_8888); bitmap.setPixels(pixels, 0, widthPix, 0, 0, widthPix, heightPix); if (logoBm != null) { bitmap = addLogo(bitmap, logoBm); } //必須使用compress方法將bitmap保存到文件中再進(jìn)行讀取。直接返回的bitmap是沒(méi)有任何緊縮的，內(nèi)存消耗巨大！ return bitmap != null && bitmap.compress(Bitmap.CompressFormat.JPEG, 100, new FileOutputStream(filePath)); } catch (WriterException | IOException e) { e.printStackTrace(); } return false; } /** * 在2維碼中間添加Logo圖案 */ private static Bitmap addLogo(Bitmap src, Bitmap logo) { if (src == null) { return null; } if (logo == null) { return src; } //獲得圖片的寬高 int srcWidth = src.getWidth(); int srcHeight = src.getHeight(); int logoWidth = logo.getWidth(); int logoHeight = logo.getHeight(); if (srcWidth == 0 || srcHeight == 0) { return null; } if (logoWidth == 0 || logoHeight == 0) { return src; } //logo大小為2維碼整體大小的1/7 float scaleFactor = srcWidth * 1.0f / 7 / logoWidth; Bitmap bitmap = Bitmap.createBitmap(srcWidth, srcHeight, Bitmap.Config.ARGB_8888); try { Canvas canvas = new Canvas(bitmap); canvas.drawBitmap(src, 0, 0, null); canvas.scale(scaleFactor, scaleFactor, srcWidth / 2, srcHeight / 2); canvas.drawBitmap(logo, (srcWidth - logoWidth) / 2, (srcHeight - logoHeight) / 2, null); canvas.save(Canvas.ALL_SAVE_FLAG); canvas.restore(); } catch (Exception e) { bitmap = null; e.getStackTrace(); } return bitmap; } public interface QRCodeListener { void onQRCode(boolean isSuccess, Bitmap qrBitmap, String filePath); } private static boolean success = false; public static void createQRcode(Context context, String filePath, final String text, final Bitmap logoBm, final QRCodeListener qrCodeListener) { handler = new Handler(Looper.getMainLooper()); if (TextUtils.isEmpty(filePath)) { filePath = FilePath.imagePath + "qr_" + MyApplication.userId + ".jpg"; } final String path = filePath; //2維碼圖片較大時(shí)，生成圖片、保存文件的時(shí)間可能較長(zhǎng)，因此放在新線程中 new Thread(new Runnable() { @Override public void run() { success = QRCodeUtil.createQRImage(text, 800, 800, logoBm, path); handler.post(new Runnable() { @Override public void run() { if (qrCodeListener != null) { qrCodeListener.onQRCode(success, BitmapFactory.decodeFile(path), path); } } }); } }).start(); } public static void createQRcode(Context context, String filePath, String text, int logoResId, QRCodeListener qrCodeListener) { File file = new File(filePath); if (file.exists()) { if (qrCodeListener != null) { qrCodeListener.onQRCode(true, BitmapFactory.decodeFile(filePath), filePath); } } else { createQRcode(context, filePath, text, BitmapFactory.decodeResource(context.getResources(), logoResId), qrCodeListener); } } }

/** * dip轉(zhuǎn)換px */ public static int dip2px(Context context, int dip) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dip * scale + 0.5f); } /** * px轉(zhuǎn)換dip */ public static int px2dip(Context context,int px) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (px / scale + 0.5f); } /** * 從主線程looper里面移除runnable */ public static void removeCallbacks(Runnable runnable) { getHandler().removeCallbacks(runnable); }

/** * 獲得狀態(tài)欄高度 */ public static int getStatusBarHeight(Context context) { int result = 0; int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) { result = context.getResources().getDimensionPixelSize(resourceId); } return result; }

/** * 通知父容器，占用的寬，高； * * @param child */ public static void measureView(View child) { ViewGroup.LayoutParams p = child.getLayoutParams(); if (p == null) { p = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); } int childWidthSpec = ViewGroup.getChildMeasureSpec(0, 0, p.width); int lpHeight = p.height; int childHeightSpec; if (lpHeight > 0) { childHeightSpec = View.MeasureSpec.makeMeasureSpec(lpHeight, View.MeasureSpec.EXACTLY); } else { childHeightSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); } child.measure(childWidthSpec, childHeightSpec); }

private void getBitmapColor() { Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.background_menu_head); //取圖片上的色彩 Palette.generateAsync(bitmap, new Palette.PaletteAsyncListener() { @Override public void onGenerated(Palette palette) { Palette.Swatch swatch = palette.getVibrantSwatch(); //充滿活力的色板 if (swatch != null) { int rgb = swatch.getRgb(); int titleTextColor = swatch.getTitleTextColor(); int bodyTextColor = swatch.getBodyTextColor(); //HSL色采模式 // hsl[0] is Hue [0 .. 360)色相 //hsl[1] is Saturation [0...1]飽和度 //hsl[2] is Lightness [0...1]明度 float[] hsl = swatch.getHsl(); colorBurn(rgb); colorBurn(titleTextColor); colorBurn(bodyTextColor); Logg.d(hsl[0] + "==" + hsl[1] + "==" + hsl[2]); } } }); } private int colorBurn(int RGBValues) { </