package com.mingrisoft; import android.content.DialogInterface; import android.graphics.Color; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.util.TypedValue; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.TextView; import static com.mingrisoft.R.*; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); FrameLayout frameLayout=new FrameLayout(this);//真布局管理器对象 frameLayout.setBackgroundResource(R.mipmap.bga);//设置背景 setContentView(frameLayout);//布局管理器 TextView text1=new TextView(this);//通过new来进行实例化 text1.setText("开始游戏"); text1.setTextSize(TypedValue.COMPLEX_UNIT_SP,18); text1.setTextColor(Color.rgb(17,85,114)); FrameLayout.LayoutParams params=new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); params.gravity= Gravity.CENTER; text1.setLayoutParams(params); text1.setOnClickListener(new View.OnClickListener() {//触发事件 @Override public void onClick(View v) { new AlertDialog.Builder(MainActivity.this).setTitle("系统提示") .setMessage("是否要进入?") .setPositiveButton("确定", new DialogInterface.OnClickListener(){ @Override public void onClick(DialogInterface dialog, int which){ Log.i("桌面台球","进入游戏"); } }).setNegativeButton("退出",new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Log.i("桌面台球", "退出游戏"); finish(); } }).show(); } }); } }