如何從動態創建的editText框中獲取值，並將輸入的值保存到二維數組中

Question

我正在製作一個android應用程序，作爲一個項目，它將用戶的輸入視爲輸入no。然後它動態地創建文本框，以便在下一個意圖中顯示矩陣的行和列。現在我需要這些值進行進一步的計算，如反轉，轉置，加法，減法等。我需要這些值到b存儲在一個二維數組，這樣我可以用它easily.please幫助,,並thankx 這裏是我的代碼

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main2); 
    int rows = getIntent().getIntExtra("rows",3); 
    int cols = getIntent().getIntExtra("cols",3); 
    matrix = (LinearLayout) findViewById(R.id.matrix); 
    matrix.removeAllViews(); 
    List<EditText> allEds = new ArrayList<EditText>();//thisline 


    for (int a = 1; a <= rows; a++) 
    { 
     LinearLayout layout = new LinearLayout(Main2Activity.this); 
     layout.setOrientation(LinearLayout.HORIZONTAL); 
     layout.setLayoutParams(new LinearLayout.LayoutParams 
       (LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT,1)); 
     for (int b = 1; b <= cols; b++) 
     { 
      EditText text = new EditText(Main2Activity.this); 
      //text.setBackgroundColor(Color.GRAY); 
      allEds.add(text);//thisline 

      text.setHint("**"); 
      text.setKeyListener(new DigitsKeyListener()); 

      text.setHintTextColor(Color.BLACK); 
      int iD = 1; 
      //noinspection ResourceType 
      text.setId(iD); 
      text.setLayoutParams(new LinearLayout.LayoutParams 
        (LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1)); 
      //text.setText((j + 1) + " "); 
      text.setTextColor(Color.RED); 
      layout.addView(text); 
     } 
     matrix.addView(layout); 
    } 
    String[] strings = new String[allEds.size()]; 

    for(int a=1; a <= allEds.size();a++) 
    { 
     for (int b = 1; b <= cols; b++) 
     { 
      strings[b] = allEds.get(b).getText().toString(); 

     } 
    } 

Answer 1

protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_main2); 
int rows = getIntent().getIntExtra("rows",3); 
int cols = getIntent().getIntExtra("cols",3); 
matrix = (LinearLayout) findViewById(R.id.matrix); 
matrix.removeAllViews(); 

//List<EditText> allEds = new ArrayList<EditText>();//thisline 
//Now you have 2D array of 
EditText editTextMatrix[][] = new EditText[rows][cols]; 


//for (int a = 1; a <= rows; a++) 
for (int a = 0; a < rows; a++) 
{ 
    LinearLayout layout = new LinearLayout(Main2Activity.this); 
    layout.setOrientation(LinearLayout.HORIZONTAL); 
    layout.setLayoutParams(new LinearLayout.LayoutParams 
      (LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT,1)); 


    //for (int b = 1; b <= cols; b++)   
    for (int b = 0; b < cols; b++) 
    { 
     EditText text = new EditText(Main2Activity.this); 
     //text.setBackgroundColor(Color.GRAY); 
     // allEds.add(text);//thisline 

     editTextMatrix[a][b] = text; 

     text.setHint("**"); 
     text.setKeyListener(new DigitsKeyListener()); 

     text.setHintTextColor(Color.BLACK); 

     //Setting ID to editText is not compulsory as you are saving a reference in editTextMatrix[][] 
     //int iD = 1; 
     //noinspection ResourceType 
     //text.setId(iD); 

     text.setLayoutParams(new LinearLayout.LayoutParams 
       (LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1)); 
     //text.setText((j + 1) + " "); 
     text.setTextColor(Color.RED); 
     layout.addView(text); 
    } 
    matrix.addView(layout); 
} 


//Now you have 2D array of editTextMatrix 
//Iterate editTextMatrix to get the values;