程式小試身手

上網查了不少資料,一直看到說使用getButton

但一直出錯顯示沒有getButton這方法,那時才意識到自己使用的不是AlertDialog 是 Dialog (自訂義 繼承AlertDialog.Builder)

將類型改為AlertDialog並在show()之後設定按鈕事件即可

import android.support.v7.app.AlertDialog;

AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage("Test for preventing dialog close");
AlertDialog dialog = builder.create();
dialog.show();
//Overriding the handler immediately after show is probably a better approach than OnShowListener as described below
dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener()
      {            
          @Override
          public void onClick(View v)
          {
              Boolean wantToCloseDialog = false;
              //Do stuff, possibly set wantToCloseDialog to true then...
              if(wantToCloseDialog)
                  dismiss();
              //else dialog stays open. Make sure you have an obvious way to close the dialog especially if you set cancellable to false.
          }
      });

1. 生命週期

2. 内存泄漏？内存溢出 

3. string xml 用法

我在mainfast.xml將Activity theme設定為NoActionBar

在Activity Java中定義了Toolbar 

參考Overstack作法: Toolbar Search Suggestions Theming

實作上一直以為自己出錯才沒有顯示提示,實際上是因為至少要輸入符合陣列內的內容!

特此筆記提醒自己

ü資料量不大

官方:https://developers.google.com/maps/documentation/directions/intro?hl=zh-tw

我覺得不錯的:http://blog.csdn.net/mad1989/article/details/9734667

過去是用GCM 但firebase出來就有FCM 一直想要試試看FCM APP打訊息給APP，終於成功了! 之前自己架伺服器設webserverAPI，再讓Android去呼叫伺服器API 這次用Android內直接打fcm send，但這樣做法是不建議，因為金鑰暴露在外面... 後來想只是自己的小APP 玩玩而已就練練隨便寫 ============================================================================= 

compile 'com.squareup.okhttp3:okhttp:3.3.0'

============================================================================= public static final MediaType JSON  = MediaType.parse("application/json; charset=utf-8");

============================================================================= new AsyncTask<Void, Void, Void>() { @Override  protected Void doInBackground(Void... params) { try { OkHttpClient client = new OkHttpClient(); JSONObject json = new JSONObject(); JSONObject dataJson = new JSONObject(); dataJson.put("body", "Hi this is sent from device to device"); dataJson.put("title", "dummy title"); json.put("notification", dataJson); json.put("to", "暫時寫自己的TOKEN測試用"); RequestBody body = RequestBody.create(JSON, json.toString()); Request request = new Request.Builder() .header("Authorization", "key=AAAA0qHCG1g:APA91bEkkT.....JteHVBNbvc0h31xs3hAnq" ) .url("https://fcm.googleapis.com/fcm/send") .post(body) .build(); Response response = client.newCall(request).execute(); String finalResponse = response.body().string(); } catch (Exception e) { //Log.d(TAG,e+"");  } return null; } @Override  protected void onPostExecute( Void result) { } }.execute();

=============================================================================

建立看這個就夠了 

firebase-01-資料庫基礎設定

注意

1.網路權限

2.auth預設是null 一定要改true

added in version 22.0.0

現在好像不怎麼用Listview 改用 RecyclerView (1.)

• 節省create layout的資源
• 有定義好的動畫可以使用

RecyclerView.ItemDecoration 也是RecyclerView 的重點(2.)

--------------------------------------------------------

寫過網頁的人會對這個debug工具有特別的感覺!

介面滿像的

gradle內要導入lib

Stetho

chrome://inspect/#devices

在偵測Activity 活動的時候 如果對每個方法override可能會漏掉 new ActivityLifecycleCallbacks 之後 比較不會漏掉

參考網站

http://blog.csdn.net/tongcpp/article/details/40344871