Andriod 4個按鈕事件範例 KeyDown onClick

Andriod 4個按鈕事件範例 KeyDown onClick

自行撰寫4個按鈕事件範例，歡迎有興趣的同好，藝起來C/P一下。

 

package com.example.activity_keyevent; import android.os.Bundle; import android.app.Activity; import android.view.Menu; /////////////////////////////////////// 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.View; import android.view.*; import android.view.View.*; import android.widget.*; import android.view.ViewGroup.MarginLayoutParams; public class MainActivity extends Activity { Button[] bt; int gintnowfouce; @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()); gintnowfouce=0; 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]); ///////////////////////////////////////// } public boolean onKeyDown(int keycode, KeyEvent e) { String str; str=""; switch(keycode) { case KeyEvent.KEYCODE_DPAD_UP: switch(gintnowfouce) { case 0: gintnowfouce=3; break; case 1: gintnowfouce=4; break; case 2: gintnowfouce=1; break; case 3: gintnowfouce=2; break; } str = "上"; break; case KeyEvent.KEYCODE_DPAD_DOWN: switch(gintnowfouce) { case 0: gintnowfouce=3; break; case 1: gintnowfouce=4; break; case 2: gintnowfouce=1; break; case 3: gintnowfouce=2; break; } str = "下"; break; case KeyEvent.KEYCODE_DPAD_LEFT: switch(gintnowfouce) { case 0: gintnowfouce=2; break; case 1: gintnowfouce=1; break; case 2: gintnowfouce=4; break; case 3: gintnowfouce=3; break; } str = "左"; break; case KeyEvent.KEYCODE_DPAD_RIGHT: switch(gintnowfouce) { case 0: gintnowfouce=2; break; case 1: gintnowfouce=1; break; case 2: gintnowfouce=4; break; case 3: gintnowfouce=3; break; } str = "右"; break; case KeyEvent.KEYCODE_DPAD_CENTER: str = "中央"; break; case KeyEvent.KEYCODE_ENTER: str = "ENTER"; break; default: this.finish(); } //tv.setText("��" + str + "。"); bt[0].setFocusable(false); bt[1].setFocusable(false); bt[2].setFocusable(false); bt[3].setFocusable(false); bt[gintnowfouce].setFocusable(true); Toast.makeText(this, str, Toast.LENGTH_SHORT).show(); return true; } @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..."); } if(v==bt[1]) { bt[1].setText("1 clicked..."); } if(v==bt[2]) { bt[2].setText("2 clicked..."); } if(v==bt[3]) { bt[3].setText("3 clicked..."); } } } }