Android弹出对话框容易代码
Android弹出对话框简单代码
package com.zxing.dialog; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class DialogTest extends Activity { private static final int DIALOG = 1; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btn = (Button)findViewById(R.id.button1); btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub showDialog(DIALOG);//Activity里面的函数,然后调用onCreateDialog这个方法,最后调用onPrepareDialog这个方法 } }); } @Override protected Dialog onCreateDialog(int id) { // TODO Auto-generated method stub if(id==1){ return this.buildDialog(DialogTest.this); }else{ return null; } } @Override protected void onPrepareDialog(int id, Dialog dialog) { // TODO Auto-generated method stub super.onPrepareDialog(DIALOG, dialog); } private Dialog buildDialog(Context context){ AlertDialog.Builder builder = new AlertDialog.Builder(context); builder.setIcon(R.drawable.alert_dialog_icon); builder.setTitle(R.string.alertitle); builder.setPositiveButton(R.string.right,new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub setTitle("您单击了对话框上面的正确按钮"); } }); return builder.create(); } }