RadioButton仿QQ底部标签（有右上角数字）

package com.hmkj.idate; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.util.DisplayMetrics; import android.view.ViewGroup; import android.view.ViewGroup.MarginLayoutParams; import android.widget.FrameLayout; import android.widget.RadioGroup; import android.widget.TextView; public class MainActivity extends FragmentActivity implements RadioGroup.OnCheckedChangeListener{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); DisplayMetrics displayMetrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(displayMetrics); int screenWidth = displayMetrics.widthPixels; TextView textView = (TextView) findViewById(R.id.message_person); FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) textView.getLayoutParams(); layoutParams.leftMargin = screenWidth * 17 / 25; textView.setLayoutParams(layoutParams); /* TextView textView = (TextView) findViewById(R.id.message_person); MarginLayoutParams marginLayoutParams = new MarginLayoutParams(textView.getLayoutParams()); FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT); lp.setMargins((screenWidth*3)/5, marginLayoutParams.topMargin, marginLayoutParams.rightMargin,marginLayoutParams.bottomMargin); textView.setLayoutParams(lp);*/ RadioGroup radioGroup = (RadioGroup) findViewById(R.id.main_radiogroup); radioGroup.setOnCheckedChangeListener(this); radioGroup.check(R.id.radio_invitation); } @Override public void onCheckedChanged(RadioGroup radioGroup, int checkedId) { switch(checkedId){ case R.id.radio_invitation: break; case R.id.radio_hotpoint: break; case R.id.radio_share: break; case R.id.radio_message: break; case R.id.radio_setting: break; default: break; } } }