插入图像到桌面视图不覆盖整个屏幕

Question

当我的图像的分辨率为128x128并插入到tableview（应该覆盖整个屏幕）时，它们不覆盖整个屏幕，但是当我将它们调整为256x256，然后覆盖整个屏幕。我不能使用9补丁图像或其他东西来使它们覆盖整个屏幕，并在任何屏幕分辨率下按照需要运行？我必须使用密度吗？

我试图fitXY设置为我的观点，但它并没有解决我的问题。

我不知道，如果需要的，但这里是我的代码：

我创建了4个GIF图像按钮，并将它们添加到GIF图像按钮列表：

for (int i = 0; i < 4; ++i) { 
    GifImageButton myButton = new GifImageButton(); 
    myButton.setBackgroundResource(drawables[i]); // add some drawable to the button background 
    myButton.setLayoutParams(new TableRow.LayoutParams(0, TableRow.LayoutParams.MATCH_PARENT, 1.0f)); 
    listButtons.add(myButton); 
} 

然后我创建了一个tablelayout（行= 2，列= 2）编程并将其添加到我的布局：

MyTableLayout tableLayout = new MyTableLayout(this); 
tableLayout.createTableLayoutOfButtons(tableRows /*=2*/, tableCols /*=2*/, listButtons); 
mylinearLayout.addView(tableLayout); 

我MyTableLayout类是：

public class MyTableLayout extends TableLayout { 

    public MyTableLayout(Context context) { 
     super(context); 
    } 

    // indexListButtons is the current index of the listButtons elements. so as long as there are buttons, we will add them to the table rows 
    int indexListButtons = 0; 
    public void createTableLayoutOfButtons(int numRows, int numCols, List<GifImageButton> listButtons) { 
     setLayoutParams(new TableLayout.LayoutParams(LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.MATCH_PARENT)); 

     for (int i = 0; i < numRows; ++i) { 
      TableRow tableRow = new TableRow(getContext()); 
      tableRow.setGravity(Gravity.CENTER); 

      tableRow.setLayoutParams(new TableLayout.LayoutParams(
        TableLayout.LayoutParams.MATCH_PARENT, 
        TableLayout.LayoutParams.MATCH_PARENT)); 

      for (int j = 0; j < numCols; ++j, ++indexListButtons) { 
       // indices 0, 1, 2, 3 
       if (indexListButtons < listButtons.size()) { 
        tableRow.addView(listButtons.get(indexListButtons)); 
       } 
       // indices bigger than 3 don't exist so insert empty views in order to make each of the views in the same size 
       else { 
        // not enough buttons 
        TableRow.LayoutParams params = new TableRow.LayoutParams(0, TableRow.LayoutParams.MATCH_PARENT, 1.0f); 
       Button btn = new Button(getContext()); 
       btn.setLayoutParams(params); 
       btn.setVisibility(View.INVISIBLE); 
       tableRow.addView(btn); 
       } 
      } 
      addView(tableRow); 
     } 
    } 
} 

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编辑

======

韦塞林·托多罗夫，让我明白，如果这是你的意思。感谢..

public class MyTableLayout extends TableLayout { 

    public MyTableLayout(Context context) { 
     super(context); 
    } 

    // indexListButtons is the current index of the listButtons elements. so  as long as there are buttons, we will add them to the table rows 
    int indexListButtons = 0; 
    public void createTableLayoutOfButtons(int numRows, int numCols,  List<GifImageButton> listButtons) { 
     setLayoutParams(new TableLayout.LayoutParams(LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.MATCH_PARENT)); 

     for (int i = 0; i < numRows; ++i) { 
      TableRow tableRow = new TableRow(getContext()); 
      LinearLayout newLinearLayout = new LinearLayout(getContext()); 
      newLinearLayout.setLayoutParams(new  LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT, 1.0f)); 
      newLinearLayout.setOrientation(LinearLayout.VERTICAL); 
      tableRow.addView(newLinearLayout, new TableLayout.LayoutParams(
        TableLayout.LayoutParams.MATCH_PARENT, 
        TableLayout.LayoutParams.MATCH_PARENT, 1.0f)); 
      tableRow.setGravity(Gravity.CENTER); 

      for (int j = 0; j < numCols; ++j, ++indexListButtons) { 
       // indices 0, 1, 2, 3 
       if (indexListButtons < listButtons.size()) { 
        newLinearLayout.addView(listButtons.get(indexListButtons)); 
       } 
       // indices bigger than 3 don't exist so insert empty views  in order to make each of the views in the same size 
       else { 
        // not enough buttons 
        TableRow.LayoutParams params = new  TableRow.LayoutParams(0, TableRow.LayoutParams.MATCH_PARENT, 1.0f); 
        Button btn = new Button(getContext()); 
        btn.setLayoutParams(params); 
        btn.setVisibility(View.INVISIBLE); 
        newLinearLayout.addView(btn); 
       } 
      } 
      addView(tableRow); 
     } 
    } 
} 

Answer 1

你可以做这样的事情得到预期的结果：

LinearLayout main = new LinearLayout(context); 
    main.setOrientation(LinearLayout.VERTICAL); 

    // for(etc. etc.) 
    LinearLayout currentRow = new LinearLayout(context); 
    currentRow.setOrientation(LinearLayout.HORIZONTAL); 
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(MATCH_PARENT, 0); 
    params.weight = 1.0f; 
    currentRow.setLayoutParams(params); 

    View viewOne = new View(context); 
    params = new LinearLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT); 
    viewOne.setLayoutParams(params); 
    currentRow.addView(viewOne); 

    View viewTwo = new View(context); 
    params = new LinearLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT); 
    viewTwo.setLayoutParams(params); 
    currentRow.addView(viewTwo); 

    main.addView(currentRow); 
    //} end of for 

你可以用在你的循环创造了“currentRow”布局，如​​果你需要更多的行的代码。这样你就不必使用表格布局，而且它的创建也相对简单。缺点是效率不高，因为它使用嵌套布局，但不应该是个问题。

另一个要考虑的是，如果你需要多行像10或以上，你应该使用一个RecyclerView与GridLayoutManager这样你就不会产生太多的意见和一个非常沉重的布局。