Android-开启闪光灯作为手电筒

矫情吗；* 2022-08-19 05:48 202阅读 0赞

1、首先，肯定不能忘记添加权限

<uses-permission android:name="android.permission.CAMERA" />

2、直接粘贴源码

public class MainActivity extends Activity {
    
        private Button openLight;  
        private boolean status = false;  
        private Camera camera;  
        private Parameters parameters;  
        private MainActivity instance; 
        
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.activity_main);
    		instance = this;  
            camera = Camera.open();  
            openLight = (Button)findViewById(R.id.openLight);  
            openLight.setOnClickListener(new OnClickListener() {  
                @Override  
                public void onClick(View v) {  
                    if (!status) {  
                        openLight.setText("关闭");  
                        status = true;  
                        new Thread(new TurnOnLight()).start();  
                    }else {  
                        status = false;  
                        openLight.setText("打开");  
                        instance.parameters.setFlashMode("off");  
                        instance.camera.setParameters(instance.parameters);  
                    }  
                }  
            });  
              
        }  
          
          
        private class TurnOnLight implements Runnable{  
            @Override  
            public void run() {  
                instance.parameters = instance.camera.getParameters();  
                instance.parameters.setFlashMode("torch");  
                instance.camera.setParameters(instance.parameters);  
            }  
        }  
    }

3、项目下载地址

[CameraLight.zip][]

[CameraLight.zip]: http://download.csdn.net/detail/qq_24956515/9390541