如何改变的EditText字体大小

Question

我写了一个代码，使一个下拉列表，其中有一些项目的“8”，“12”，“13” ...等 这样的XML：

<Spinner 
android:id="@+id/spinner" 
android:layout_width="match_parent" 
android:layout_height="wrap_content" 
android:background="@android:drawable/btn_dropdown" 
android:spinnerMode="dropdown" /> 

现在我有相同的布局一个EditText有该标签：

<EditText 
    android:id="@+id/etFName" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:ems="10" > 
    <requestFocus /> 
    </EditText> 

我想要的是，当我选择8例如EditText上的字体大小为8，当我选择12 EditText上的字体大小为12依此类推......

这里是我的Graduation.java代码

private Spinner spinner; 
private static final String[]paths = {"item 1", "item 2", "item 3"}; 
EditText etFName; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.graduation); 
    /*spinner = (Spinner)findViewById(R.id.spinner); 
    ArrayAdapter<String>adapter = new ArrayAdapter<String> (Graduation.this,android.R.layout.simple_spinner_item,paths); 

    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
    spinner.setAdapter(adapter); 
    spinner.setOnItemSelectedListener((OnItemSelectedListener) this);*/ 
    Spinner dropdown = (Spinner)findViewById(R.id.spinner); 
    String[] items = new String[]{"8", "12", "16", "18", "20", "24", "28"}; 
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, items); 
    dropdown.setAdapter(adapter); 
    spinner.setOnItemSelectedListener(new OnItemSelectedListener() { 

     @Override 
     public void onItemSelected(AdapterView<?> parent, View v, int position, long id) { 

      switch (position) { 
       case 0: 
        // Whatever you want to happen when the first item gets selected 
        break; 
       case 1: 
        // Whatever you want to happen when the second item gets selected 
        break; 
       case 2: 
        // Whatever you want to happen when the thrid item gets selected 
        break; 

      } 
     } 

     @Override 
     public void onNothingSelected(AdapterView<?> arg0) { 
     } 
    }); 

我应该如何填写评论行？

Answer 1

我相信你应该试试这个（我没有）：

int fontSizeInt; 
try 
{ 
    fontSizeInt = Integer.parseInt(items[position]); 
} 
catch (NumberFormatException e) 
{ 
    fontSizeInt = 12; // Default size. 
} 
etFName.setTextSize(TypedValue.COMPLEX_UNIT_SP, (float) fontSizeInt); 

注int被转换为float。请记住，您不希望让NumberFormatException引起您不安，但您感觉安全。

Answer 2

etFName.setTextSize(TypedValue.COMPLEX_UNIT_SP,Integer.parseInt(items[position]));