查看android內存等使用情況

package com.gallery;import android.app.Activity;import android.app.ActivityManager;import android.os.Bundle;import android.widget.TextView;public class SystemProperty extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);}/** * 显示数据存库 */private StringBuffer buffer;@Overrideprotected void onStart() {super.onStart();initProperty();getMemoryInfo();TextView tv = new TextView(this);tv.setText(buffer.toString());this.setContentView(tv);}/** * 系统信息查看方法 */private void initProperty() {initProperty("java.vendor.url", "java.vendor.url");initProperty("java.class.path", "java.class.path");initProperty("user.home", "user.home");initProperty("java.class.version", "java.class.version");initProperty("os.version", "os.version");initProperty("java.vendor", "java.vendor");initProperty("user.dir", "user.dir");initProperty("user.timezone", "user.timezone");initProperty("path.separator", "path.separator");initProperty(" os.name", " os.name");initProperty("os.arch", "os.arch");initProperty("line.separator", "line.separator");initProperty("file.separator", "file.separator");initProperty("user.name", "user.name");initProperty("java.version", "java.version");initProperty("java.home", "java.home");}private void initProperty(String description, String propertyStr) {if (buffer == null) {buffer = new StringBuffer();}buffer.append(description).append("--->:");buffer.append(System.getProperty(propertyStr)).append("\n");getMemoryInfo();}/** * 系统内存情况查看 */private void getMemoryInfo() {final ActivityManager activityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);ActivityManager.MemoryInfo outInfo = new ActivityManager.MemoryInfo();activityManager.getMemoryInfo(outInfo);buffer.append("\n剩余内存:---->").append(outInfo.availMem >> 10).append("k");buffer.append("\n剩余内存:---->").append(outInfo.availMem >> 20).append("M");buffer.append("\n是否处于低内存状态:----->").append(outInfo.lowMemory);}}