[android] 練習PopupWindow實現對話方塊，androidpopupwindow

[android] 練習PopupWindow實現對話方塊，androidpopupwindow

練習使用Dialog實習對話方塊

package com.example.tsh;import android.app.Activity;import android.app.Dialog;import android.os.Bundle;import android.os.Handler;import android.view.MotionEvent;import android.view.View;import android.view.View.OnClickListener;import android.view.View.OnTouchListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.PopupWindow;public class MainActivity extends Activity {    private Handler handler=new Handler();    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //Dialog實現對話方塊        Dialog dialog=new Dialog(this,R.style.Theme_Tsh_Dialog);        dialog.setContentView(R.layout.activity_two);        dialog.show();                    }}

styles.xml

<?xml version="1.0" encoding="utf-8"?><resources xmlns:android="http://schemas.android.com/apk/res/android">        <!-- 自訂對話方塊主題 -->    <style name="Theme.Tsh.Dialog" parent="@android:style/Theme.Dialog">        <item name="android:windowBackground">@null</item>    </style></resources>

練習使用PopupWindow實現對話方塊

package com.example.tsh;import android.app.Activity;import android.app.Dialog;import android.os.Bundle;import android.os.Handler;import android.view.MotionEvent;import android.view.View;import android.view.View.OnClickListener;import android.view.View.OnTouchListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.PopupWindow;public class MainActivity extends Activity {    private Handler handler=new Handler();    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //Dialog實現對話方塊//        Dialog dialog=new Dialog(this,R.style.Theme_Tsh_Dialog);//        dialog.setContentView(R.layout.activity_two);//        dialog.show();                //使用PopupWindow實現對話方塊        Button dropDown=(Button) findViewById(R.id.bt_dropdown);        dropDown.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View arg0) {                View anchor=View.inflate(MainActivity.this, R.layout.activity_two, null);                final PopupWindow popupWindow=new PopupWindow(anchor, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT,true);                                //點擊空白隱藏                popupWindow.setTouchable(true);                popupWindow.setTouchInterceptor(new OnTouchListener() {                                        @Override                    public boolean onTouch(View arg0, MotionEvent arg1) {                        popupWindow.dismiss();                        return false;                    }                });                popupWindow.setBackgroundDrawable(getResources().getDrawable(R.drawable.ic_launcher));                popupWindow.showAsDropDown(arg0);                            }        });            }}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >        <TextView        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="第一個介面"/>    <Button         android:id="@+id/bt_dropdown"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="顯示下拉"        /></LinearLayout>