Android 为radiogroup代码动态加入radiobutton

public void addRadioGropItem(){

DisplayMetrics dm = new DisplayMetrics();

getWindowManager().getDefaultDisplay().getMetrics(dm);

int indicatorWidth = dm.widthPixels / arr.length;

mRadioGroup.removeAllViews();

for(int i=0;i<5;i++){

RadioButton rb = (RadioButton)this.getLayoutInflater().inflate(R.layout.activity_main_radiogroup_item, null);

rb.setId(i);

rb.setText(arr[i]);

Drawable drawable=getResources().getDrawable(R.drawable.btn_home);

int w = drawable.getIntrinsicWidth();

int h=drawable.getIntrinsicHeight();

/////这一步必须要做,否则不会显示.

drawable.setBounds(0, 0, w, h);

rb.setCompoundDrawables(null,drawable,null,null);

rb.setPadding(0,20, 0, 0);

、

//rb.setCompoundDrawablesWithIntrinsicBounds(null,drawable,null,null);

//rb.setCompoundDrawablesWithIntrinsicBounds(0,R.drawable.btn_home,0,0);

rb.setLayoutParams(new LayoutParams(indicatorWidth,LayoutParams.MATCH_PARENT));

mRadioGroup.addView(rb);

}

}

Radiobutton添加内容有三种方式：

1. Drawable drawable= getResources().getDrawable(R.drawable.btn_home);

int w = drawable.getIntrinsicWidth();

int h=drawable.getIntrinsicHeight();

/////这一步必须要做,否则不会显示.

drawable.setBounds(0, 0, w, h);

rb.setCompoundDrawables(null,drawable,null,null);

rb.setPadding(0,20, 0, 0);

2. rb.setCompoundDrawablesWithIntrinsicBounds(null,drawable,null,null);

3. rb.setCompoundDrawablesWithIntrinsicBounds(0,R.drawable.btn_home,0,0);