新增保存图片到相册

xidian-rs · Aug 1, 2018 · f75adde · f75adde
1 parent 7a4f482
commit f75adde
Show file tree

Hide file tree

Showing 10 changed files with 115 additions and 18 deletions.
diff --git a/app/src/main/java/me/yluo/ruisiapp/activity/ViewImgActivity.java b/app/src/main/java/me/yluo/ruisiapp/activity/ViewImgActivity.java
@@ -1,15 +1,23 @@
 package me.yluo.ruisiapp.activity;
 
+import android.Manifest;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.graphics.Bitmap;
 import android.graphics.Color;
+import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
+import android.provider.MediaStore;
+import android.support.annotation.NonNull;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.ActivityOptionsCompat;
+import android.support.v4.content.ContextCompat;
 import android.support.v4.view.PagerAdapter;
 import android.support.v4.view.ViewPager;
 import android.text.TextUtils;
+import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
@@ -22,6 +30,7 @@
 import org.jsoup.nodes.Element;
 import org.jsoup.select.Elements;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -68,6 +77,22 @@ protected void onCreate(Bundle savedInstanceState) {
         adapter = new MyAdapter();
         pager.setAdapter(adapter);
 
+        findViewById(R.id.btn_save).setOnClickListener(v -> {
+            if (currentPosition < 0) return;
+
+            if (ContextCompat.checkSelfPermission(ViewImgActivity.this,
+                    Manifest.permission.WRITE_EXTERNAL_STORAGE)
+                    != PackageManager.PERMISSION_GRANTED) {
+
+                ActivityCompat.requestPermissions(ViewImgActivity.this,
+                        new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
+                        100);
+            } else {
+                saveToGallery(datas.get(currentPosition));
+            }
+        });
+
+
         Bundle b = getIntent().getExtras();
         String url = b.getString("url");
 
@@ -125,8 +150,11 @@ public void finish() {
         }
     }
 
+    private int currentPosition = -1;
+
     private void changeIndex(int pos) {
         index.setText((pos + 1) + "/" + datas.size());
+        currentPosition = pos;
     }
 
 
@@ -155,8 +183,9 @@ public int getCount() {
             return datas == null ? 0 : datas.size();
         }
 
+        @NonNull
         @Override
-        public Object instantiateItem(ViewGroup container, final int position) {
+        public Object instantiateItem(@NonNull ViewGroup container, final int position) {
             ScaleImageView v = container.findViewWithTag(position);
             if (v == null) {
                 v = new ScaleImageView(ViewImgActivity.this);
@@ -177,18 +206,71 @@ public Object instantiateItem(ViewGroup container, final int position) {
 
 
         @Override
-        public boolean isViewFromObject(View view, Object object) {
+        public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
             return view == object;
         }
 
         @Override
-        public int getItemPosition(Object object) {
+        public int getItemPosition(@NonNull Object object) {
             return POSITION_NONE;
         }
 
 
         @Override
-        public void destroyItem(ViewGroup container, int position, Object object) {
+        public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
+        }
+    }
+
+    private void saveToGallery(String url) {
+        new AsyncTask<Void, Void, Boolean>() {
+
+            @Override
+            protected Boolean doInBackground(Void... voids) {
+                Bitmap bitmap = null;
+                try {
+                    bitmap = Picasso.get().load(url).get();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                    return false;
+                }
+
+                // Save image to gallery
+                String savedImageURL = MediaStore.Images.Media.insertImage(
+                        getContentResolver(),
+                        bitmap,
+                        "IMAGE_" + System.currentTimeMillis(),
+                        null
+                );
+
+                Log.d("===", "saved " + savedImageURL);
+                return true;
+            }
+
+            @Override
+            protected void onPostExecute(Boolean aBoolean) {
+                super.onPostExecute(aBoolean);
+                if (aBoolean) {
+                    showToast("保存图片成功");
+                } else {
+                    showToast("保存图片失败");
+                }
+
+            }
+        }.execute();
+    }
+
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
+        switch (requestCode) {
+            case 100: {
+                // If request is cancelled, the result arrays are empty.
+                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                    saveToGallery(datas.get(currentPosition));
+                } else {
+                    showToast("你拒绝了保存到相册的权限，无法保存");
+                }
+            }
         }
     }
 }
diff --git a/app/src/main/java/me/yluo/ruisiapp/api/entity/ApiResult.java b/app/src/main/java/me/yluo/ruisiapp/api/entity/ApiResult.java
@@ -1,8 +1,5 @@
 package me.yluo.ruisiapp.api.entity;
 
-import java.util.Date;
-
-
 public class ApiResult<T> {
 
     public int Version;

diff --git a/app/src/main/java/me/yluo/ruisiapp/api/entity/ForumThreadlist.java b/app/src/main/java/me/yluo/ruisiapp/api/entity/ForumThreadlist.java
@@ -1,6 +1,5 @@
 package me.yluo.ruisiapp.api.entity;
 
-import java.util.Date;
 import java.util.List;
 
 public class ForumThreadlist {

diff --git a/app/src/main/java/me/yluo/ruisiapp/api/entity/Variables.java b/app/src/main/java/me/yluo/ruisiapp/api/entity/Variables.java
@@ -1,7 +1,5 @@
 package me.yluo.ruisiapp.api.entity;
 
-import java.util.List;
-
 public class Variables {
 
     public String cookiepre;

diff --git a/app/src/main/java/me/yluo/ruisiapp/myhttp/ApiResponseHandler.java b/app/src/main/java/me/yluo/ruisiapp/myhttp/ApiResponseHandler.java
@@ -7,7 +7,6 @@
 import java.lang.reflect.Type;
 
 import me.yluo.ruisiapp.api.entity.ApiResult;
-import me.yluo.ruisiapp.api.entity.Variables;
 
 public abstract class ApiResponseHandler<T> extends ResponseHandler {
 

diff --git a/app/src/main/java/me/yluo/ruisiapp/myhttp/SyncHttpClient.java b/app/src/main/java/me/yluo/ruisiapp/myhttp/SyncHttpClient.java
@@ -10,7 +10,6 @@
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.net.URLEncoder;
-import java.nio.ByteBuffer;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.Map;

diff --git a/app/src/main/java/me/yluo/ruisiapp/widget/htmlview/DefaultImageGetter.java b/app/src/main/java/me/yluo/ruisiapp/widget/htmlview/DefaultImageGetter.java
@@ -271,7 +271,7 @@ public Drawable bmpToDrawable(String source, Bitmap b) {
 
 
     private Drawable getPlaceHolder(String souce) {
-        ColorDrawable colorDrawable = new ColorDrawable(0xffcccccc);
+        ColorDrawable colorDrawable = new ColorDrawable(0x00000000);
         if (souce == null || souce.isEmpty()) {
             colorDrawable.setBounds(0, 0, 120, 120);
         } else if (souce.startsWith(SMILEY_PREFIX)) {

diff --git a/app/src/main/java/me/yluo/ruisiapp/widget/htmlview/spann/Quote.java b/app/src/main/java/me/yluo/ruisiapp/widget/htmlview/spann/Quote.java
@@ -1,6 +1,5 @@
 package me.yluo.ruisiapp.widget.htmlview.spann;
 
-import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.support.v4.content.ContextCompat;

diff --git a/app/src/main/res/drawable/ic_save_24dp.xml b/app/src/main/res/drawable/ic_save_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M17,3L5,3c-1.11,0 -2,0.9 -2,2v14c0,1.1 0.89,2 2,2h14c1.1,0 2,-0.9 2,-2L21,7l-4,-4zM12,19c-1.66,0 -3,-1.34 -3,-3s1.34,-3 3,-3 3,1.34 3,3 -1.34,3 -3,3zM15,9L5,9L5,5h10v4z"/>
+</vector>
diff --git a/app/src/main/res/layout/activity_view_img.xml b/app/src/main/res/layout/activity_view_img.xml
@@ -35,12 +35,12 @@
             android:layout_marginEnd="50dp"
             android:layout_marginStart="50dp"
             android:ellipsize="end"
-            android:textStyle="bold"
             android:gravity="center"
             android:maxLines="1"
             android:text="@string/app_name"
             android:textColor="@color/white"
-            android:textSize="18sp" />
+            android:textSize="18sp"
+            android:textStyle="bold" />
 
         <ImageView
             android:id="@+id/menu"
@@ -58,10 +58,25 @@
         android:id="@+id/index"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
+        android:layout_gravity="bottom|center_horizontal"
         android:layout_margin="12dp"
-        android:textColor="@color/white"
+        android:textColor="@color/text_color_sec"
         android:textSize="20sp"
         tools:text="5/6" />
 
+    <ImageView
+        android:id="@+id/btn_save"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:layout_gravity="bottom|end"
+        android:layout_marginBottom="1dp"
+        android:layout_marginTop="1dp"
+        android:background="?attr/selectableItemBackgroundBorderless"
+        android:clickable="true"
+        android:focusable="true"
+        android:padding="8dp"
+        android:layout_margin="12dp"
+        android:tint="@color/text_color_sec"
+        android:src="@drawable/ic_save_24dp" />
+
 </FrameLayout>