- import java.io.File;
- import android.app.Activity;
- import android.os.Bundle;
- import android.os.Environment;
- import android.os.StatFs;
- import android.text.format.Formatter;
- import android.view.View;
- import android.widget.TextView;
- public class MainActivity extends Activity {
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- TextView tvMemoryInfo = (TextView) findViewById(R.id.tv_memory_info);
- // 获得sd卡的内存状态
- File sdcardFileDir = Environment.getExternalStorageDirectory();
- String sdcardMemory = getMemoryInfo(sdcardFileDir);
- // 获得手机内部存储控件的状态
- File dataFileDir = Environment.getDataDirectory();
- String dataMemory = getMemoryInfo(dataFileDir);
- tvMemoryInfo.setText("SD卡: " + sdcardMemory + "\n手机内部: " + dataMemory);
- }
- /**
- * 根据路径获取内存状态
- * @param path
- * @return
- */
- private String getMemoryInfo(File path) {
- // 获得一个磁盘状态对象
- StatFs stat = new StatFs(path.getPath());
- long blockSize = stat.getBlockSize(); // 获得一个扇区的大小
- long totalBlocks = stat.getBlockCount(); // 获得扇区的总数
- long availableBlocks = stat.getAvailableBlocks(); // 获得可用的扇区数量
- // 总空间
- String totalMemory = Formatter.formatFileSize(this, totalBlocks * blockSize);
- // 可用空间
- String availableMemory = Formatter.formatFileSize(this, availableBlocks * blockSize);
- return "总空间: " + totalMemory + "\n可用空间: " + availableMemory;
- }
- }
来源: http://www.phpxs.com/code/1001813/