Dialog对话框

package com.example.j.addresss; import android.content.DialogInterface; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class MainActivity extends AppCompatActivity { private Button Button1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button1 = findViewById(R.id.Button1); Button1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { alert_edit(view); } }); } public void alert_edit(View view){ final EditText et = new EditText(this); View view1 = LayoutInflater.from(this).inflate(R.layout.activity_main1,null); new AlertDialog.Builder(this).setTitle("请输入消息") .setIcon(android.R.drawable.sym_def_app_icon) .setView(view1) .setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //按下确定键后的事件 Toast.makeText(getApplicationContext(), et.getText().toString(),Toast.LENGTH_LONG).show(); } }).setNegativeButton("取消",null).show(); } }