Android編程之代碼建立布局執行個體分析_Android

來源:互聯網
上載者:User

本文執行個體講述了Android編程之代碼建立布局使用方法。分享給大家供大家參考,具體如下:

大概描述一下效果:最外層是一個 RelativeLayout 裡面有自訂個LinearLayout,每個LinearLayout有兩個TextView。that's it !!!

private void initView() {  // 擷取xml的RelativeLayout  layout = (RelativeLayout) findViewById(R.id.liner);  for (int i = 0; i < 5; i++) {   RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(     ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);   // 每行都有一個linearlayout   LinearLayout lLayout = new LinearLayout(mContext);   lLayout.setId(i + 10);   lLayout.setOrientation(LinearLayout.HORIZONTAL);   LinearLayout.LayoutParams lLayoutlayoutParams = new LinearLayout.LayoutParams(     ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);   lLayout.setLayoutParams(lLayoutlayoutParams);   TextView tv = new TextView(mContext);   tv.setId(i);   tv.setText("這是第" + i + "個文字框");   tv.setTextColor(Color.BLUE);   TextView tv_num = new TextView(mContext);   tv_num.setId(i + 20);   tv_num.setText(i + "台");   tv_num.setTextColor(Color.RED);   // 為TextView添加長高設定   LinearLayout.LayoutParams layoutParams_txt = new LinearLayout.LayoutParams(     ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);   tv.setLayoutParams(layoutParams_txt);   tv_num.setLayoutParams(layoutParams_txt);   // 添加到每行的linearlayout中   lLayout.addView(tv);   lLayout.addView(tv_num);   // 每個linearlayout都在前一個的下面,第一個在頂,不處理   if (i > 0) {    relativeParams.addRule(RelativeLayout.BELOW, i + 10 - 1);   }   // 把每個linearlayout加到relativelayout中   layout.addView(lLayout, relativeParams);  }}

希望本文所述對大家Android程式設計有所協助。

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