imageView图片保存到本地和相册

package com.example.kk.myapplication;

import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.os.Bundle;
import android.content.ClipboardManager;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class focusUsActivity extends Activity {

private ImageView back;
private TextView copyWeChatNumber;
private ImageView two_dimension_code;
private ClipboardManager cmb;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.focus_us);

}

@Override
protected void onResume() {
super.onResume();
init();
}

private void init(){
back=(ImageView)findViewById(R.id.focususBack);
copyWeChatNumber=(TextView)findViewById(R.id.copyWeChatNumber);
two_dimension_code=(ImageView)findViewById(R.id.two_dimension_code);
cmb = (ClipboardManager)this.getSystemService(Context.CLIPBOARD_SERVICE);
setComponent();
}

private void setComponent(){
back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent(focusUsActivity.this,localPhoneActivity.class);
startActivity(intent);

}
});
if(cmb.getText().toString().equals("ivali-mobi")){
copyWeChatNumber.setBackgroundColor(Color.parseColor("#ADADAD"));
copyWeChatNumber.setText("微信号已经复制到剪贴板");
}else {
copyWeChatNumber.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
copyWeChatNumber.setBackgroundColor(Color.parseColor("#ADADAD"));
copyWeChatNumber.setText("微信号已经复制到剪贴板");
cmb.setText("ivali-mobi");
}
});
}

two_dimension_code.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
/* saveImage("ivali-icon.JPEG");*/ //保存到本地  /storage/emulated/0/saving_picture
SaveImageToSysAlbum();  //保存到相册

return false;
}
});

}

public static String getSDPath()
{
boolean hasSDCard = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
if(hasSDCard)
{
return Environment.getExternalStorageDirectory().toString()+"/saving_picture";

}
else{
return "/data/data/com.example.kk.myapplication/saving_picture";
}

}

public static Bitmap convertViewToBitmap(View view)
{
view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
view.buildDrawingCache();
Bitmap bitmap = view.getDrawingCache();
return bitmap;
}

public void saveImage(String strFileName)
{
Bitmap bitmap = convertViewToBitmap(two_dimension_code);
String strPath = getSDPath();

try
{
File destDir = new File(strPath);
if (!destDir.exists())
{
Log.d("MagicMirror", "Dir not exist create it " + strPath);
destDir.mkdirs();
Log.d("MagicMirror", "Make dir success: " + strPath);
}

File imageFile = new File(strPath + "/" + strFileName);
imageFile.createNewFile();
FileOutputStream fos = new FileOutputStream(imageFile);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
fos.flush();
fos.close();
}
catch (FileNotFoundException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}

}

private void SaveImageToSysAlbum() {
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
Bitmap bitmap = convertViewToBitmap(two_dimension_code);
if (bitmap != null) {
try {
ContentResolver cr = getContentResolver();
String url = MediaStore.Images.Media.insertImage(cr, bitmap,
String.valueOf(System.currentTimeMillis()), "");
Toast.makeText(this, "保存成功", Toast.LENGTH_SHORT).show();

} catch (Exception e) {
e.printStackTrace();
}
}else {
Toast.makeText(this, "保存失败", Toast.LENGTH_SHORT).show();
}
}else {
Toast.makeText(this, "没有sdcard，保存失败", Toast.LENGTH_SHORT).show();
}
}
}