Android控制項的隱藏與顯示

Android控制項的隱藏與顯示

 

按照下面網址參考資料撰寫一個簡易的範例，歡迎有興趣的同好，一起來C/P一下。

 

資料來源：http://fecbob.pixnet.net/blog/post/35615328-android%E6%8E%A7%E5%88%B6%E9%A0%85%E7%9A%84%E9%9A%B1%E8%97%8F%E8%88%87%E9%A1%AF%E7%A4%BA

 

package com.example.button_hide_show; import com.example.button_hide_show.MainActivity.ButListener; /*  Android控制項的隱藏與顯示 3個值 invisible：不顯示,但保留所占的空間 visible：正常顯示 gone：不顯示,且不保留所占的空間  */ import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.view.View; /////////////////////////////////////// import android.util.DisplayMetrics; import android.view.Window; import android.view.WindowManager; import android.widget.AbsoluteLayout; import android.widget.Button; import android.widget.TextView; import android.view.*; import android.view.View.*; import android.widget.*; import android.view.ViewGroup.MarginLayoutParams; public class MainActivity extends Activity { Button[] bt; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ///////////////////////////////////////// requestWindowFeature(Window.FEATURE_NO_TITLE); //全螢幕設定 getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); ///////////////////////////////////////// AbsoluteLayout AbsLayout1=new AbsoluteLayout(this); setContentView(AbsLayout1); ///////////////////////////////////////// DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics); bt=new Button[4]; bt[0]=new Button(this); bt[0].setText("0"); bt[0].setWidth(metrics.widthPixels/2); bt[0].setHeight(metrics.heightPixels/2); bt[0].setFocusable(true); bt[0].setOnClickListener(new ButListener()); bt[0].setLayoutParams( new AbsoluteLayout.LayoutParams( metrics.widthPixels/2, metrics.heightPixels/2, 0, 0 ) ); AbsLayout1.addView(bt[0]); bt[1]=new Button(this); bt[1].setText("1"); bt[1].setWidth(metrics.widthPixels/2); bt[1].setHeight(metrics.heightPixels/2); bt[1].setOnClickListener(new ButListener()); bt[1].setLayoutParams( new AbsoluteLayout.LayoutParams( metrics.widthPixels/2, metrics.heightPixels/2, metrics.widthPixels/2, 0 ) ); AbsLayout1.addView(bt[1]); bt[2]=new Button(this); bt[2].setText("2"); bt[2].setWidth(metrics.widthPixels/2); bt[2].setHeight(metrics.heightPixels/2); bt[2].setOnClickListener(new ButListener()); bt[2].setLayoutParams( new AbsoluteLayout.LayoutParams( metrics.widthPixels/2, metrics.heightPixels/2, 0, metrics.heightPixels/2 ) ); AbsLayout1.addView(bt[2]); bt[3]=new Button(this); bt[3].setText("3"); bt[3].setWidth(metrics.widthPixels/2); bt[3].setHeight(metrics.heightPixels/2); bt[3].setOnClickListener(new ButListener()); bt[3].setLayoutParams( new AbsoluteLayout.LayoutParams( metrics.widthPixels/2, metrics.heightPixels/2, metrics.widthPixels/2, metrics.heightPixels/2 ) ); AbsLayout1.addView(bt[3]); ///////////////////////////////////////// } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } class ButListener implements OnClickListener { public void onClick(View v) { if(v==bt[0]) { bt[0].setText("0 clicked..."); bt[0].setVisibility(View.INVISIBLE);//hide bt[1].setVisibility(View.VISIBLE);//show } if(v==bt[1]) { bt[1].setText("1 clicked..."); bt[1].setVisibility(View.INVISIBLE);//hide bt[0].setVisibility(View.VISIBLE);//show } if(v==bt[2]) { bt[2].setText("2 clicked..."); bt[2].setVisibility(View.INVISIBLE);//hide bt[3].setVisibility(View.VISIBLE);//show } if(v==bt[3]) { bt[3].setText("3 clicked..."); bt[3].setVisibility(View.INVISIBLE);//hide bt[2].setVisibility(View.VISIBLE);//show } } } }