增加Android屏幕的工具类

371718330@qq.com · 371718330@qq.com · commit f3f60b99aed4 · 2017-08-08T10:29:10.000+08:00
diff --git a/CommonUtil/src/main/java/com/jingewenku/abrahamcaijin/commonutil/AppScreenMgr.java b/CommonUtil/src/main/java/com/jingewenku/abrahamcaijin/commonutil/AppScreenMgr.java
@@ -4,13 +4,26 @@
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Picture;
 import android.graphics.Rect;
+import android.os.Environment;
 import android.util.DisplayMetrics;
+import android.util.Log;
 import android.view.Display;
 import android.view.View;
+import android.view.Window;
 import android.view.WindowManager;
+import android.webkit.WebView;
 
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.lang.reflect.Field;
 import java.lang.reflect.Method;
+import java.text.SimpleDateFormat;
+import java.util.Date;
 
 /**
  * 主要功能:有关Android屏幕的工具类
@@ -174,4 +187,181 @@ public static Bitmap snapShotWithoutStatusBar(Activity activity)
         view.destroyDrawingCache();
         return bp;
     }
+
+    /**
+     * 获得标题栏高度
+     *
+     * @param context 上下文，为Activity对象
+     * @return 标题栏高度
+     */
+    public static int getTitleBarHeight(Activity context) {
+        int contentTop = context.getWindow().findViewById(Window.ID_ANDROID_CONTENT).getTop();
+        return contentTop - getStatusBarHeight(context);
+    }
+
+    /**
+     * 获取通知栏高度
+     *
+     * @param context 上下文
+     * @return 通知栏高度
+     */
+    public static int getStatusBarHeight(Context context) {
+        int statusBarHeight = 0;
+        try {
+            Class<?> clazz = Class.forName("com.android.internal.R$dimen");
+            Object obj = clazz.newInstance();
+            Field field = clazz.getField("status_bar_height");
+            int temp = Integer.parseInt(field.get(obj).toString());
+            statusBarHeight = context.getResources().getDimensionPixelSize(temp);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return statusBarHeight;
+    }
+
+    /**
+     *  获取指定Activity的截屏，保存到png文件
+     *
+     * @param activity activity
+     * @return 截屏Bitmap
+     */
+    private static Bitmap takeScreenShot(Activity activity) {
+        // View是你需要截图的View
+        View view = activity.getWindow().getDecorView();
+        view.setDrawingCacheEnabled(true);
+        view.buildDrawingCache();
+        Bitmap b1 = view.getDrawingCache();
+
+        // 获取状态栏高度
+        Rect frame = new Rect();
+        activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
+        int statusBarHeight = frame.top;
+        Log.i("TAG", "" + statusBarHeight);
+
+        // 获取屏幕长和高
+        int width = activity.getWindowManager().getDefaultDisplay().getWidth();
+        int height = activity.getWindowManager().getDefaultDisplay()
+                             .getHeight();
+        Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height
+            - statusBarHeight);
+        view.destroyDrawingCache();
+        return b;
+    }
+
+    /**
+     * 保存bitmap
+     *
+     * @param b           bitmap
+     * @param strFileName 文件名
+     * @return 是否保存成功
+     */
+    private static boolean savePic(Bitmap b, String strFileName) {
+        FileOutputStream fos = null;
+        try {
+            fos = new FileOutputStream(strFileName);
+            if (null != fos) {
+                b.compress(Bitmap.CompressFormat.PNG, 90, fos);
+                fos.flush();
+                fos.close();
+                return true;
+            }
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return false;
+    }
+
+    /**
+     * 截取webView快照(webView加载的整个内容的大小)
+     *
+     * @param webView webview
+     * @return 截屏bitmap
+     */
+    private static Bitmap captureWebView(WebView webView) {
+        Picture snapShot = webView.capturePicture();
+
+        Bitmap bmp = Bitmap.createBitmap(snapShot.getWidth(), snapShot.getHeight(), Bitmap.Config.ARGB_8888);
+        Canvas canvas = new Canvas(bmp);
+        snapShot.draw(canvas);
+        return bmp;
+    }
+
+    /**
+     * 根据毫秒获得格式化日期
+     *
+     * @param time   毫秒数
+     * @param format 格式化字符串
+     * @return 格式化后的字符串
+     */
+    private static String getDate(long time, String format) {
+        Date date = new Date(time);
+        SimpleDateFormat formatter = new SimpleDateFormat(format);
+        String daystr = formatter.format(date);
+        return daystr;
+    }
+
+    /**
+     * 是否存在sd卡
+     *
+     * @return 是否存在sd卡
+     */
+    private static Boolean isExistsSD() {
+        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
+            return true;
+        return false;
+    }
+
+    /**
+     * 获得文件名
+     *
+     * @param context 上下文
+     * @return 文件名
+     */
+    private static String getFileName(Context context) {
+        String fileName = getDate(System.currentTimeMillis(), "yyyyMMddHHmmss") + ".png";
+        final String localPath;
+        if (isExistsSD()) {
+            localPath = context.getExternalCacheDir() + File.separator + fileName;
+        } else {
+            localPath = context.getFilesDir() + fileName;
+        }
+
+        return localPath;
+    }
+
+    /**
+     * 截屏并保存
+     *
+     * @param a activity
+     * @return 保存的路径
+     */
+    public static String shoot(Activity a) {
+        String localPath = getFileName(a);
+        boolean ret = AppScreenMgr.savePic(AppScreenMgr.takeScreenShot(a), localPath);
+        if (ret) {
+            return localPath;
+        } else {
+            return "";
+        }
+    }
+
+    /**
+     * 截屏并保存
+     *
+     * @param context 上下文
+     * @param webView webview
+     * @return 保存的路径
+     */
+    public static String shootWebView(Context context, WebView webView) {
+        String localPath = getFileName(context);
+        boolean ret = AppScreenMgr.savePic(AppScreenMgr.captureWebView(webView), localPath);
+        if (ret) {
+            return localPath;
+        } else {
+            return "";
+        }
+    }
 }
