【移动应用开发技术】AlertDialog自定义效果

【移动应用开发技术】AlertDialog自定义效果

/**

*自定义AlertDialog

*用于退出程序按钮

**/publicclassAlertDialog{ Contextcontext; android.app.AlertDialogad; TextViewtitleView; TextViewmessageView; LinearLayoutbuttonLayout; publicAlertDialog(Contextcontext){ this.context=context; ad=newandroid.app.AlertDialog.Builder(context).create(); ad.show(); Windowwindow=ad.getWindow(); window.setContentView(R.layout.alertdialog); titleView=(TextView)window.findViewById(R.id.title); messageView=(TextView)window.findViewById(R.id.message); buttonLayout=(LinearLayout)window.findViewById(R.id.buttonLayout); } publicvoidsetTitle(intresId){ titleView.setText(resId); } publicvoidsetTitle(Stringtitle){ titleView.setText(title); } publicvoidsetMessage(intresId){ messageView.setText(resId); } publicvoidsetMessage(Stringmessage){ messageView.setText(message); } /** *设置按钮 *

*/ publicvoidsetPositiveButton(Stringtext, finalView.OnClickListenerlistener){ Buttonbutton=newButton(context); LinearLayout.LayoutParamsparams=newLayoutParams( LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT); button.setLayoutParams(params); button.setBackgroundResource(R.drawable.alertdialog_button); button.setText(text); button.setTextColor(Color.WHITE); button.setTextSize(20); button.setOnClickListener(listener); buttonLayout.addView(button); } /** *设置按钮 */ publicvoidsetNegativeButton(Stringtext, finalView.OnClickListenerlistener){ Buttonbutton=newButton(context); LinearLayout.LayoutParamsparams=newLayoutParams( LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT); button.setLayoutParams(params); button.setBackgroundResource(R.drawable.alertdialog_button); button.setText(text); button.setTextColor(Color.WHITE); button.setTextSize(20); button.setOnClickListener(listener); if(buttonLayout.getChildCount()>0){ params.setMargins(40,0,0,0); button.setLayoutParams(params); buttonLayout.addView(button,1); }else{ button.setLayoutParams(params); buttonLayout.addView(button); } } /** *关闭对话框 */ publicvoiddismiss(){ ad.dismiss(); }}alertDialog.xml：：：<?xmlversion="1.0"encoding="utf-8"?><LinearLayoutxmlns:android="/apk/res/android"

android:layout_width="300sp"

android:layout_height="match_parent"

android:orientation="vertical">

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/ss1"

android:orientation="vertical">

<TextView

android:id="@+id/title"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:gravity="center_horizontal"

android:textColor="#000000"

android:textSize="35dp"/>

<TextView

android:id="@+id/message"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginBottom="10dp"

android:layout_marginLeft="20dp"

android:layout_marginRight="10dp"

android:layout_marginTop="20dp"

android:textColor="#000000"

android:textSize="25dp"/>

<LinearLayout

android:id="@+id/buttonLayout"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:layout_marginBottom="5sp"

android:gravity="center"

android:orientation="horizontal">

</LinearLayout>

</LinearLayout></LinearLayout>以上是新建一个class文件，最关键的自定义代码，以下就是在activity之中直接调用即可，中间用到的图片什么的，自己选好添加即可，publicclassMainActivityextendsActivity{ @Override protectedvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); finalAlertDialogad=newAlertDialog(MainActivity.this); ad.setTitle("标题"); ad.setMessage("内容sdfs容内容内容内容内容内容内容"); ad.setPositiveButton("确定",newOnClickListener(){ @Override publicvoidonClick(Viewv){ ad.dismiss(); Toast.makeText(MainActivity.this,"被点到确定",Toast.LENGTH_LONG) .sh