Android Camera变焦编程步骤
1、添加Camera权限
2、判断是否支持变焦
publicbooleanisSupportZoom() { booleanisSuppport=true; if(mCamera.getParameters().isSmoothZoomSupported()) { isSuppport=false; } returnisSuppport; }
3、修改焦距
publicvoidsetZoom() { if(mIsSupportZoom) { try { Parametersparams=mCamera.getParameters(); finalintMAX=params.getMaxZoom(); if(MAX==0)return;
intzoomValue=params.getZoom(); Trace.Log("-----------------MAX:"+MAX+" params:"+zoomValue); zoomValue+=5; params.setZoom(zoomValue); mCamera.setParameters(params); Trace.Log("IssupportZoom"+params.isZoomSupported()); } catch(Exceptione) { Trace.Log("--------exceptionzoom"); e.printStackTrace(); } } else { Trace.Log("--------thephonenotsupportzoom"); } }