Android開發----------- 手電筒改進版本，android-----------

Android開發----------- 手電筒改進版本，android-----------

在之前的基礎上

在 res 檔案夾下面： 添加一個 drawable/local_me.xml

localme_cml

<selector xmlns:android="http://schemas.android.com/apk/res/android">    <item android:state_checked="true"        android:drawable="@drawable/on" /> <!-- pressed -->    <item android:drawable="@drawable/off" /> <!-- default/unchecked --></selector>

主程式：

package com.example.handlightactivity;import android.app.Activity;  import android.hardware.Camera;  import android.hardware.Camera.Parameters;  import android.os.Bundle;  import android.os.Process;  import android.view.View;  import android.view.View.OnClickListener;  import android.view.WindowManager;  import android.widget.ToggleButton;    /** *  * @author love *  * 原理： * 就是通過 點擊按鈕， *   當 點擊按鈕的時候   開啟閃光燈。 *   關閉 按鈕的時候    關閉閃光燈 *  *  * */public class MainActivity extends Activity implements OnClickListener {      private ToggleButton toggleButton;        private Camera camera = Camera.open();      /** Called when the activity is first created. */      @Override      public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_main);            toggleButton = (ToggleButton) this.findViewById(R.id.toggleButton1);          toggleButton.setOnClickListener(this);                    //保持螢幕          getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);      }        @Override      public void onClick(View v) {          ToggleButton tb = (ToggleButton) v;          Camera.Parameters param = camera.getParameters();          if(!tb.isChecked()){  //        open the  camera flash!            param.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);              toggleButton.setBackgroundColor(0x30ffffff);  //          on open on.jpg            tb.setBackgroundDrawable(getResources().getDrawable(R.drawable.on));        }else{              param.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);              toggleButton.setBackgroundColor(0xffffffff); //           off  open the off.jpg            tb.setBackgroundDrawable(getResources().getDrawable(R.drawable.off));        }          camera.setParameters(param);      }        @Override      protected void onPause() {  //      camera.release();  //      Process.killProcess(Process.myPid());          super.onPause();      }  }

：

android對於手電筒開發

給open和close分別設定監聽,將倒數第二個花括弧移動closeListener之前。
public class MainActivity extends Activity {
private Camera camera = null;
private Parameters parameters = null;
private Button open=null;
private Button close=null;
private TextView title=null;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

open = (Button)findViewById(R.id.open);
close = (Button)findViewById(R.id.close);
title= (TextView)findViewById(R.id.title);

title.setText(R.string.title);
open.setText(R.string.open);
close.setText(R.string.close);
open.setOnClickListener(openListener);
close.setOnClickListener(closeListener);

}

public class openListener implements OnClickListener{

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
camera = Camera.open();
parameters = camera.getParameters();
parameters.setFlashMode(Parameters.FLASH_MODE_TORCH);//開啟
camera.setParameters(parameters);
}
}
public class closeListener implements OnClickListener{

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
parameters.setFlashMode(Parameters.FLASH_MODE_OFF);//關閉
camera.setParameters(parameters);
camera.release();
}

}

public boolean onCreateOption......餘下全文>>
 
安卓的412版本裡的手電筒在什地方

你在安卓市場下載一個手電筒軟體，
一般都是用你手機內建的閃光燈照明
沒有閃光燈的是螢幕全白照明
或者你下載了程式管理軟體的話有些軟體內建手電功能