Android4.2 PHONE模式之截屏快捷按钮

转载地址：
http://blog.csdn.net/yicao821/article/details/17416649
1》frameworks\base\packages\SystemUI\res\values\config.xml

[html] view
plaincopy





<!-- Whether screenshot shows up in quick settings or not add by xxx-->  

    <bool name="quick_settings_show_screenshot">true</bool>  

2》frameworks\base\packages\SystemUI\res\values\strings.xml

[html] view
plaincopy





<string name="quick_settings_screen_shot_label">Screen shot</string>  

3》frameworks\base\packages\SystemUI\res\values-zh-rCN\strings.xml

[html] view
plaincopy





<string name="quick_settings_screen_shot_label" msgid="f9870466a61654f367d">屏幕截图</string>  

4》添加截屏图标
①frameworks\base\packages\SystemUI\res\drawable-hdpi\ic_qs_screen_shot.png
②frameworks\base\packages\SystemUI\res\drawable-mdpi\ic_qs_screen_shot.png
③frameworks\base\packages\SystemUI\res\drawable-xhdpi\ic_qs_screen_shot.png

5》frameworks\base\packages\SystemUI\res\layout\quick_settings_tile_screen_shot.xml

[html] view
plaincopy





<?xml version="1.0" encoding="utf-8"?>  

<!-- Copyright (C) 2012 The Android Open Source Project  

  

     Licensed under the Apache License, Version 2.0 (the "License");  

     you may not use this file except in compliance with the License.  

     You may obtain a copy of the License at  

  

          http://www.apache.org/licenses/LICENSE-2.0  

  

     Unless required by applicable law or agreed to in writing, software  

     distributed under the License is distributed on an "AS IS" BASIS,  

     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  

     See the License for the specific language governing permissions and  

     limitations under the License.  

-->  

<TextView  

    xmlns:android="http://schemas.android.com/apk/res/android"  

    style="@style/TextAppearance.QuickSettings.TileView"  

    android:id="@+id/screen_shot_textview"  

    android:layout_width="wrap_content"  

    android:layout_height="wrap_content"  

    android:layout_gravity="center"  

    android:gravity="center"  

    android:drawableTop="@drawable/ic_qs_screen_shot"  

    android:text="@string/quick_settings_screen_shot_label"  

    />  

6》frameworks\base\packages\SystemUI\src\com\android\systemui\statusbar\phone\QuickSettings.java

[java] view
plaincopy





import android.content.ServiceConnection;  

import android.os.IBinder;  

import android.os.Message;  

import android.os.Messenger;  

  

/* 

        QuickSettingsTileView mediaTile = (QuickSettingsTileView) 

                inflater.inflate(R.layout.quick_settings_tile, parent, false); 

        mediaTile.setContent(R.layout.quick_settings_tile_media, inflater); 

        parent.addView(mediaTile); 

        QuickSettingsTileView imeTile = (QuickSettingsTileView) 

                inflater.inflate(R.layout.quick_settings_tile, parent, false); 

        imeTile.setContent(R.layout.quick_settings_tile_ime, inflater); 

        imeTile.setOnClickListener(new View.OnClickListener() { 

            @Override 

            public void onClick(View v) { 

                parent.removeViewAt(0); 

            } 

        }); 

        parent.addView(imeTile); 

        */  

  

        // screen shot  

        QuickSettingsTileView ScreenShotTile = (QuickSettingsTileView)  

                inflater.inflate(R.layout.quick_settings_tile, parent, false);  

        ScreenShotTile.setContent(R.layout.quick_settings_tile_screen_shot, inflater);  

        ScreenShotTile.setOnClickListener(new View.OnClickListener() {  

            @Override  

            public void onClick(View v) {  

                Log.i("bright", "screen shot is clicked.");  

                //takeScreenshot();  

                mBar.collapseAllPanels(true);  

                mHandler.removeCallbacks(mScreenshotClick);  

                mHandler.postDelayed(mScreenshotClick, 500);  

            }  

        });  

        if (mContext.getResources().getBoolean(R.bool.quick_settings_show_screenshot)) {  

            parent.addView(ScreenShotTile);  

    }  

  

  

// add by xxx, for screen shot in quick settings.  

    private final Runnable mScreenshotClick = new Runnable() {  

        public void run() {  

            takeScreenshot();  

        }  

    };  

  

    private final Object mScreenshotLock = new Object();  

    private ServiceConnection mScreenshotConnection = null;  

      

    private final Runnable mScreenshotTimeout = new Runnable() {  

        @Override public void run() {  

            synchronized (mScreenshotLock) {  

                if (mScreenshotConnection != null) {  

                    mContext.unbindService(mScreenshotConnection);  

                    mScreenshotConnection = null;  

                }  

            }  

        }  

    };  

  

    // Assume this is called from the Handler thread.  

    private void takeScreenshot() {  

        Log.i("bright", "start take screen shot.");  

        synchronized (mScreenshotLock) {  

            if (mScreenshotConnection != null) {  

                return;  

            }  

            ComponentName cn = new ComponentName("com.android.systemui",  

                    "com.android.systemui.screenshot.TakeScreenshotService");  

            Intent intent = new Intent();  

            intent.setComponent(cn);  

            ServiceConnection conn = new ServiceConnection() {  

                @Override  

                public void onServiceConnected(ComponentName name, IBinder service) {  

                    synchronized (mScreenshotLock) {  

                        if (mScreenshotConnection != this) {  

                            return;  

                        }  

                        Messenger messenger = new Messenger(service);  

                        Message msg = Message.obtain(null, 1);  

                        final ServiceConnection myConn = this;  

                        Handler h = new Handler(mHandler.getLooper()) {  

                            @Override  

                            public void handleMessage(Message msg) {  

                                synchronized (mScreenshotLock) {  

                                    if (mScreenshotConnection == myConn) {  

                                        mContext.unbindService(mScreenshotConnection);  

                                        mScreenshotConnection = null;  

                                        mHandler.removeCallbacks(mScreenshotTimeout);  

                                    }  

                                }  

                            }  

                        };  

                        msg.replyTo = new Messenger(h);  

                        msg.arg1 = msg.arg2 = 1;  

                        try {  

                            messenger.send(msg);  

                        } catch (RemoteException e) {  

                        }  

                    }  

                }  

                @Override  

                public void onServiceDisconnected(ComponentName name) {}  

            };  

            if (mContext.bindService(  

                    intent, conn, Context.BIND_AUTO_CREATE, UserHandle.USER_CURRENT)) {  

                mScreenshotConnection = conn;  

                mHandler.postDelayed(mScreenshotTimeout, 10000);  

            }  

        }  

    }