Android studio编写简单的手电筒APP

很不错的手电筒APP，分享给大家，希望大家喜欢。

1. Java代码    

package com.example.goo.gfire;
 
import android.app.Activity;
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
 
 
public class FireActivity extends Activity {
  private Button button;
  private Camera camera = Camera.open();
  private Parameters parameters;
  private boolean islight=true;
 
  public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_fire);
   button = (Button) this.findViewById(R.id.bn);
   button.setonClickListener(new View.onClickListener() {
     @Override
     public void onClick(View v) {
      if (islight) {
 camera.startPreview();
 parameters = camera.getParameters();
 parameters.setFlashMode(Parameters.FLASH_MODE_TORCH);
 camera.setParameters(parameters);
 islight = false
 ;
 button.setText("关");
      } else {
 parameters = camera.getParameters();
 parameters.setFlashMode(Parameters.FLASH_MODE_OFF);
 camera.setParameters(parameters);
 islight = true;
 button.setText("开");
      }
     }
 
   });
  }
}

2. FireActivity.java

package com.example.goo.gfire;
 
import android.app.Activity;
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
 
 
public class FireActivity extends Activity {
  private Button button;
  private Camera camera = Camera.open();
  private Parameters parameters;
  private boolean islight=true;
 
  public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_fire);
   button = (Button) this.findViewById(R.id.bn);
   button.setonClickListener(new View.onClickListener() {
     @Override
     public void onClick(View v) {
      if (islight) {
 camera.startPreview();
 parameters = camera.getParameters();
 parameters.setFlashMode(Parameters.FLASH_MODE_TORCH);
 camera.setParameters(parameters);
 islight = false
 ;
 button.setText("关");
      } else {
 parameters = camera.getParameters();
 parameters.setFlashMode(Parameters.FLASH_MODE_OFF);
 camera.setParameters(parameters);
 islight = true;
 button.setText("开");
      }
     }
 
   });
  }
}

3. content_fire.xml

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。