// MainActivity.java

package com.example.blurdemo;import android.annotation.SuppressLint;import android.app.Activity;import android.content.DialogInterface;import android.content.DialogInterface.OnDismissListener;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.webkit.WebSettings.PluginState;import android.webkit.WebView;import android.webkit.WebViewClient;import android.widget.Button;public class MainActivity extends Activity { private Button button; private WebView webView; @SuppressWarnings("deprecation") @SuppressLint({ "SetJavaScriptEnabled", "InflateParams" }) @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final View contentView = LayoutInflater.from(this).inflate(R.layout.activity_main, null); setContentView(contentView); button = (Button) findViewById(R.id.button); webView = (WebView) findViewById(R.id.webView); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { button.setVisibility(View.GONE); SearchDialog dialog = new SearchDialog(MainActivity.this, contentView); dialog.show(); dialog.setOnDismissListener(new OnDismissListener() { @Override public void onDismiss(DialogInterface dialog) { button.setVisibility(View.VISIBLE); } }); } }); webView.getSettings().setJavaScriptEnabled(true); webView.getSettings().setPluginState(PluginState.ON); webView.getSettings().setPluginsEnabled(true); webView.getSettings().setAllowFileAccess(true); webView.getSettings().setLoadWithOverviewMode(true); webView.getSettings().setUseWideViewPort(true); webView.loadUrl("http://3g.qq.com"); webView.setWebViewClient(new WebViewClient() { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } }); } static { System.loadLibrary("bitmap"); }}

// SearchDialog.java

package com.example.blurdemo;import com.component.bitmap.jni.BitmapTools;import com.component.bitmap.jni.ImageBlur;import android.annotation.SuppressLint;import android.app.Activity;import android.app.Dialog;import android.content.Context;import android.graphics.Bitmap;import android.graphics.Matrix;import android.graphics.Rect;import android.os.Handler;import android.os.Message;import android.view.Display;import android.view.View;import android.widget.ImageView;import android.widget.Toast;public class SearchDialog extends Dialog { private ImageView bgImageView; private long startTime; public SearchDialog(final Context context) { super(context, R.style.searchDialog); setContentView(R.layout.dialog_search); bgImageView = (ImageView) findViewById(R.id.bgImageView); bgImageView.post(new Runnable() { @Override public void run() { startTime = System.currentTimeMillis(); Bitmap bitmap = myShot((MainActivity) context); duBlue(bitmap); } }); } public SearchDialog(Context context, final View view) { super(context, R.style.searchDialog); setContentView(R.layout.dialog_search); bgImageView = (ImageView) findViewById(R.id.bgImageView); bgImageView.post(new Runnable() { @Override public void run() { startTime = System.currentTimeMillis(); Bitmap bitmap = BitmapTools.getBitmapFromView(view); duBlue(bitmap); } }); } private void duBlue(final Bitmap srcBitmap) { new Thread() { public void run() { Bitmap bitmap = srcBitmap; int width = bitmap.getWidth(); int height = bitmap.getHeight(); bitmap = zoomImage(bitmap, 50, 50 * height / width); bitmap = ImageBlur.doBlurJniBitMap(bitmap, 5, true); bitmap = zoomImage(bitmap, width, height); Message message = new Message(); long time = System.currentTimeMillis() - startTime; message.obj = bitmap; message.arg1 = (int) time; handler.sendMessage(message); }; }.start(); } @SuppressLint("HandlerLeak") private Handler handler = new Handler() { public void handleMessage(Message msg) { Bitmap bitmap = (Bitmap) msg.obj; bgImageView.setImageBitmap(bitmap); Toast.makeText(getContext(), "耗時 = " + msg.arg1 + "毫秒", Toast.LENGTH_SHORT).show(); }; }; /*** * 圖片的縮放方法 * * @param bgimage * ：源圖片資源 * @param newWidth * ：縮放後寬度 * @param newHeight * ：縮放後高度 * @return */ public static Bitmap zoomImage(Bitmap bgimage, double newWidth, double newHeight) { // 獲取這個圖片的寬和高 float width = bgimage.getWidth(); float height = bgimage.getHeight(); // 建立操作圖片用的matrix物件 Matrix matrix = new Matrix(); // 計算寬高縮放率 float scaleWidth = ((float) newWidth) / width; float scaleHeight = ((float) newHeight) / height; // 縮放圖片動作 matrix.postScale(scaleWidth, scaleHeight); Bitmap bitmap = Bitmap.createBitmap(bgimage, 0, 0, (int) width, (int) height, matrix, true); return bitmap; } @SuppressWarnings("deprecation") public Bitmap myShot(Activity activity) { // 獲取windows中最頂層的view View view = activity.getWindow().getDecorView(); view.buildDrawingCache(); // 獲取狀態列高度 Rect rect = new Rect(); view.getWindowVisibleDisplayFrame(rect); int statusBarHeights = rect.top; Display display = activity.getWindowManager().getDefaultDisplay(); // 獲取螢幕寬和高 int widths = display.getWidth(); int heights = display.getHeight(); // 允許當前視窗儲存快取資訊 view.setDrawingCacheEnabled(true); // 去掉狀態列 Bitmap bmp = Bitmap.createBitmap(view.getDrawingCache(), 0, statusBarHeights, widths, heights - statusBarHeights); // 銷燬快取資訊 view.destroyDrawingCache(); return bmp; }}

// activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="${relativePackage}.${activityClass}" > <WebView android:id="@+id/webView" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_centerHorizontal="true" android:layout_centerVertical="true" /> <Button android:id="@+id/button" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="搜索" /></RelativeLayout>

// dialog_search.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <ImageView android:id="@+id/bgImageView" android:layout_width="match_parent" android:layout_height="match_parent" /> <ImageView android:background="#55555555" android:layout_width="match_parent" android:layout_height="match_parent" /> <EditText android:id="@+id/editText1" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" > <requestFocus /> </EditText></RelativeLayout>

// styles.xml

<resources>

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.

    -->
    <style name="AppBaseTheme" parent="android:Theme.Light">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.

        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
    </style>

    <style name="searchDialog">
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:backgroundDimEnabled">true</item>
    </style>

</resources>