以編程方式創建多個線性佈局和分隔線

Question

在我的應用程序中。有活動含有創建編程多個線性佈局和分頻器，其運行正常，

但我要重複的線性佈局和除法5次，都是除了兩件事情是相同的：

1-每個線性佈局具有不同的字符串。

2-第一分頻器餘量不同於其他分頻器餘量。

有更好的方法來做到這一點，更乾淨和更短的代碼。

任何幫助將不勝感激。

public class Dreams extends Activity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    Boolean customTitleSupported = 
     requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); 
    setContentView(R.layout.trip); 
    if (customTitleSupported) { 

    getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,R.layout.custom_title); 
    } 
     TextView tv = (TextView) findViewById(R.id.title); 
     tv.setTypeface(FontFactory.getOldEnglish(getBaseContext())); 
     tv.setText("Dreams"); 

    LinearLayout ll = (LinearLayout)findViewById(R.id.linearLayout);  
     // add text view 
     TextView tv1 = new TextView(this); 
     tv1.setGravity(Gravity.RIGHT); 
     tv1.setTextSize(30);  
     tv1.setTypeface(FontFactory.getOldEnglish(getBaseContext())); 
     ll.addView(tv1); 
     tv1.setText(Html.fromHtml(getString(R.string.dreams))); 

     ImageView divider1 = new ImageView(this); 
     LinearLayout.LayoutParams lp1 = 
     new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5); 
     lp1.setMargins(40, 0, 40, 0); 
     divider1.setLayoutParams(lp1); 
     divider1.setBackgroundColor(Color.RED); 
     ll.addView(divider1); 

     TextView tv2 = new TextView(this);  
     tv2.setGravity(Gravity.RIGHT); 
     tv2.setTextSize(30); 
     tv2.setTypeface(FontFactory.getOldEnglish(getBaseContext())); 
     ll.addView(tv2); 
     tv2.setText(Html.fromHtml(getString(R.string.dream_1))); 

     ImageView divider2 = new ImageView(this); 
     LinearLayout.LayoutParams lp2 = 
     new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5); 
     lp2.setMargins(10, 10, 10, 10); 
     divider2.setLayoutParams(lp2); 
     divider2.setBackgroundColor(Color.RED); 
     ll.addView(divider2);  

     TextView tv3 = new TextView(this); 
     tv3.setGravity(Gravity.RIGHT); 
     tv3.setTextSize(30); 
     tv3.setTypeface(FontFactory.getOldEnglish(getBaseContext())); 
     ll.addView(tv3); 
     tv3.setText(Html.fromHtml(getString(R.string.dream_2))); 

     ImageView divider3 = new ImageView(this); 
     LinearLayout.LayoutParams lp3 = 
     new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5); 
     lp3.setMargins(10, 10, 10, 10); 
     divider3.setLayoutParams(lp3); 
     divider3.setBackgroundColor(Color.RED); 
     ll.addView(divider3); 

     TextView tv4 = new TextView(this); 
     tv4.setGravity(Gravity.RIGHT); 
     tv4.setTextSize(30);  
     tv4.setTypeface(FontFactory.getOldEnglish(getBaseContext())); 
     ll.addView(tv4); 
     tv4.setText(Html.fromHtml(getString(R.string.dream_3)));  

     ImageView divider4 = new ImageView(this); 
     LinearLayout.LayoutParams lp4 = 
     new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5); 
     lp4.setMargins(10, 10, 10, 10); 
     divider4.setLayoutParams(lp4); 
     divider4.setBackgroundColor(Color.RED); 
     ll.addView(divider4); 

     TextView tv5 = new TextView(this);  
     tv5.setGravity(Gravity.RIGHT); 
     tv5.setTextSize(30); 
     tv5.setTypeface(FontFactory.getOldEnglish(getBaseContext())); 
     ll.addView(tv5); 
     tv5.setText(Html.fromHtml(getString(R.string.dream_4))); 

     ImageView divider5 = new ImageView(this); 
     LinearLayout.LayoutParams lp5 = 
     new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5); 
     lp5.setMargins(10, 10, 10, 10); 
     divider5.setLayoutParams(lp5); 
     divider5.setBackgroundColor(Color.RED); 
     ll.addView(divider5); 

     TextView tv6 = new TextView(this); 
     tv6.setGravity(Gravity.RIGHT); 
     tv6.setTextSize(30); 
     tv6.setTypeface(FontFactory.getOldEnglish(getBaseContext())); 
     ll.addView(tv6); 
     tv6.setText(Html.fromHtml(getString(R.string.dream_5))); 

     ImageView divider6 = new ImageView(this); 
     LinearLayout.LayoutParams lp6 = 
     new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5); 
     lp6.setMargins(10, 10, 10, 10); 
     divider6.setLayoutParams(lp6); 
     divider6.setBackgroundColor(Color.RED); 
     ll.addView(divider6); 
     } 
    } 

Answer 1

由於所有這種情況正在改變是的TextView的setText（），你可以使這個與循環字符串輸入列表。例如：

LinearLayout ll = (LinearLayout)findViewById(R.id.linearLayout);  

String[] textEntries = { getString(R.string.dream), 
          getString(R.string.dream_1), 
          getString(R.string.dream_2), 
          getString(R.string.dream_3), 
          getString(R.string.dream_4), 
          getString(R.string.dream_5) 
         }; 

for (int i = 0; i < textEntries.length; i++) 
{ 
    TextView tv = new TextView(this); 
    tv.setGravity(Gravity.RIGHT); 
    tv.setTextSize(30); 
    tv.setTypeface(FontFactory.getOldEnglish(getBaseContext())); 
    ll.addView(tv); 
    tv.setText(Html.fromHtml(textEntries[i])); 

    ImageView divider = new ImageView(this); 
    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5); 
    lp.setMargins(10, 10, 10, 10); 
    divider.setLayoutParams(lp); 
    divider.setBackgroundColor(Color.RED); 
    ll.addView(divider); 
} 

Answer 2

首先，如果您使用XML定義佈局而不是以編程方式添加它們，那將會更容易。您也將從UI編輯器的好處中受益。 :)

其次，您可能希望使用ListView和適配器來填充列表，因爲您不希望爲每個佈局複製相同的任務。

也許這兩個環節是有幫助的： 2. http://developer.android.com/guide/topics/ui/layout/listview.html

所以，到最後回答你的問題，我會做到以下幾點：

• 創建一個文件，例如list_item.xml，喜歡的東西：

  <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="10dp"><TextView your attributes.../></LinearLayout> 
  

• 創建另一個佈局，例如main.xml中，其中包含一個ListView。您可以像這裏所描述的那樣更改分隔線的顏色How to change the divider color in the listview?。

• 在您的代碼（活動或片段）中，通過setContentView（）將main.xml添加爲內容視圖。

• 同樣在你的代碼中，你應該添加一個適配器到ListView，然後爲你填充列表。下面是一個例子How to customize listview using baseadapter

最後，因爲你的方法分離關注（設計和代碼），你可以達到你想要在你的活動短短的幾行內容（佈局的東西將在XML和人口可能被移動到像MyAdapter.java分離類...）

希望幫助...