private void processLogic(Bundle savedInstanceState) {
mSaveImgDir = (File) getIntent().getSerializableExtra(EXTRA_SAVE_IMG_DIR);
if (mSaveImgDir == null) {
mDownloadIv.setVisibility(View.INVISIBLE);
}
mPreviewImages = getIntent().getStringArrayListExtra(EXTRA_PREVIEW_IMAGES);
mIsSinglePreview = getIntent().getBooleanExtra(EXTRA_IS_SINGLE_PREVIEW, false);
if (mIsSinglePreview) {
mPreviewImages = new ArrayList<>();
mPreviewImages.add(getIntent().getStringExtra(EXTRA_PHOTO_PATH));
}
int currentPosition = getIntent().getIntExtra(EXTRA_CURRENT_POSITION, 0);
mContentHvp.setAdapter(new ImagePageAdapter());
mContentHvp.setCurrentItem(currentPosition);
// 处理第一次进来时指示数字
renderTitleTv();
// 过2秒隐藏标题栏
mTitleRl.postDelayed(
new Runnable() {
@Override
public void run() {
hiddenTitlebar();
}
},
2000);
}
private void renderTitleTv() {
if (mIsSinglePreview) {
mTitleTv.setText(MQResUtils.getResStringID("mq_view_photo"));
} else {
mTitleTv.setText((mContentHvp.getCurrentItem() + 1) + "/" + mPreviewImages.size());
}
}
private void initListener() {
findViewById(MQResUtils.getResIdID("back_iv")).setOnClickListener(this);
mDownloadIv.setOnClickListener(this);
mContentHvp.addOnPageChangeListener(
new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
renderTitleTv();
}
});
}
private synchronized void savePic() {
if (mSavePhotoTask != null) {
return;
}
final String url = mPreviewImages.get(mContentHvp.getCurrentItem());
File file;
if (url.startsWith("file")) {
file = new File(url.replace("file://", ""));
if (file.exists()) {
MQUtils.showSafe(
MQPhotoPreviewActivity.this,
getString(
MQResUtils.getResStringID("mq_save_img_success_folder"),
file.getParentFile().getAbsolutePath()));
return;
}
}
// 通过MD5加密url生成文件名，避免多次保存同一张图片
file = new File(mSaveImgDir, MQUtils.stringToMD5(url) + ".png");
if (file.exists()) {
MQUtils.showSafe(
this,
getString(
MQResUtils.getResStringID("mq_save_img_success_folder"),
mSaveImgDir.getAbsolutePath()));
return;
}
mSavePhotoTask = new MQSavePhotoTask(this, this, file);
MQImage.downloadImage(
this,
url,
new MQImageLoader.MQDownloadImageListener() {
@Override
public void onSuccess(String url, Bitmap bitmap) {
mSavePhotoTask.setBitmapAndPerform(bitmap);
}
@Override
public void onFailed(String url) {
mSavePhotoTask = null;
MQUtils.showSafe(
MQPhotoPreviewActivity.this, MQResUtils.getResStringID("mq_save_img_failure"));
}
});
}