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  • demo15 AlertDialog

           Dialog dialog = new AlertDialog.Builder(this).setTitle("对话框").setMessage("this is msg info").setIcon(R.drawable.ic_launcher).create();
            dialog.show();
    package com.example.demo15alertdialog;
    
    import android.app.AlertDialog;
    import android.app.Dialog;
    import android.content.DialogInterface;
    import android.os.Bundle;
    import android.app.Activity;
    import android.view.Menu;
    import android.view.View;
    import android.widget.Button;
    
    public class MainActivity extends Activity {
    private Button button;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            this.button=(Button)super.findViewById(R.id._btn);
    
            this.button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Dialog dialog = new AlertDialog.Builder(MainActivity.this).setTitle("对话框")
                            .setMessage("this is msg info")
                            .setIcon(R.drawable.ic_launcher)
                            .setPositiveButton("Delete",new DialogInterface.OnClickListener(){public void onClick(DialogInterface dialogInterface,int whichButton) {
                            }})
                            .setNeutralButton("Show Detail",new DialogInterface.OnClickListener(){public void onClick(DialogInterface dialogInterface,int whichButton) {
                            }})
                            .setNegativeButton("Cancel",new DialogInterface.OnClickListener(){public void onClick(DialogInterface dialogInterface,int whichButton) {
                            }})
                            .create();
                    dialog.show();
                }
            });
        }
    
    
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.main, menu);
            return true;
        }
        
    }
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  • 原文地址:https://www.cnblogs.com/alamps/p/5272626.html
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