一.先建好一个dialog
protected void dialog() { AlertDialog.Builder builder = new Builder(LinkMap.this); builder.setMessage("确定要退出吗?"); builder.setTitle("提示"); builder.setPositiveButton("确认", new android.content.DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { //dialog.dismiss(); //LinkMap.this.finish(); // onDestroy(); //或直接结束进程 try { finish(); System.exit(0); android.os.Process.killProcess(android.os.Process.myPid()); } catch (Exception ex) { Log.i("error",ex.getMessage()); } Intent intent=new Intent(LinkMap.this,OmgeTCEActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); //注意本行的FLAG设置 setResult(0,intent); //这理有2个参数(int resultCode, Intent intent) startActivity(intent); } }); builder.setNegativeButton("取消", new android.content.DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); builder.create().show(); } 二.写返回按钮触发事件
public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) { dialog(); return false; } return false; } 弹出包含图片的对话框
其实很简单
AlertDialog.builder有一个setview方法，你只要写一个xml里面imgeview加载你的图片，再setview你的视图就ok了
在一个view中加载子view
View mPopView=super.getLayoutInflater().inflate(R.layout.popview, null); View mMapView.addView( mPopView, new MapView.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, null, MapView.LayoutParams.TOP_LEFT)); mPopView.setVisibility(View.VISIBLE);
一个view...progress.xml
dialog中加载图片,实现无按钮自动弹出进程框与关闭
//进程图片加载框 public AlertDialog.Builder dialog_progress() { AlertDialog.Builder builder = new Builder(LinkMap.this); View view =super.getLayoutInflater().inflate(R.layout.progress,(ViewGroup) findViewById(R.id.progress_img)); builder.setView(view); return builder; }
显示dialog,关闭dialog
AlertDialog dialog_pro=null; //进程加载 dialog_pro=dialog_progress().create(); dialog_pro.show(); //加载完成，退出加载进程 dialog_pro.dismiss();
完成