在file_manage_fragment使用RecyclerView来作为文件管理器的布局,文件部分要申请本地读写权限,尤其是运行时权限,还要在manifest文件中的<application>标签中android:requestLegacyExternalStorage="true" **发现当物理机WiFi网络连不上互联网或者没开数据时会闪退,所以要通过广播机制判断当前的网络状态**,之后再改 添加了文件布局 代码参考《第二行代码》中对recyclerview的瀑布流应用,需要创建布局除了放置recyclerview的fragment外还需要一个表示recyclerview子项的file文件布局(图标+文字),图标是请一个熟人帮忙设计的.然后图标pressed状态下有一个遮罩,也是要写一个selector来修改样式,所以同样在colors文件中添加我要使用的颜色master
parent
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commit
aa488274e7
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package com.thankvinci.CloudKey.Files;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ImageView;
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import android.widget.TextView;
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import android.widget.Toast;
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import androidx.recyclerview.widget.RecyclerView;
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import com.thankvinci.CloudKey.R;
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import java.util.List;
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public class FileAdapter extends RecyclerView.Adapter<FileAdapter.ViewHolder> {
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private List<FileItem> fileList;
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static class ViewHolder extends RecyclerView.ViewHolder{
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ImageView icon;
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TextView name;
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View file;
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public ViewHolder(View fileView){
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super(fileView);
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file = fileView;
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icon = file.findViewById(R.id.file_icon);
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name = file.findViewById(R.id.file_name);
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}
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}
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public FileAdapter(List<FileItem> fileList){
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this.fileList = fileList;
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}
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@Override
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public FileAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
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View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.file_item,parent,false);
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ViewHolder holder = new ViewHolder(view);
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holder.file.setOnClickListener(new View.OnClickListener(){
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@Override
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public void onClick(View v){
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int position = holder.getAdapterPosition();
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FileItem fitem = fileList.get(position);
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Toast.makeText(view.getContext(),fitem.getName(),Toast.LENGTH_SHORT).show();
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}
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});
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return holder;
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}
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@Override
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public void onBindViewHolder(FileAdapter.ViewHolder holder, int position) {
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FileItem fileItem = fileList.get(position);
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holder.icon.setImageResource(fileItem.getIcon());
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holder.name.setText(fileItem.getName());
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}
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@Override
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public int getItemCount() {
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return fileList.size();
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}
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}
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package com.thankvinci.CloudKey.Files;
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import android.widget.ImageView;
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import com.thankvinci.CloudKey.R;
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public class FileItem {
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private int icon;
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private String name;
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private boolean type; //File为true,Directory为false
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private boolean isZip; //在type为true下才有效,是压缩文件就为true,为普通文件就为false; 这里的压缩文件格式为zip,可能会增加rar和7z
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public FileItem(String name, boolean type, boolean isZip){
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this.type = type;
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this.name = name;
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if(type){
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if(isZip){
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icon = R.drawable.zip;
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}else{
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icon = R.drawable.file;
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}
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}else{
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icon = R.drawable.directory;
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}
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}
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public String getName(){
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return name;
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}
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public int getIcon(){
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return icon;
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}
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}
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<?xml version="1.0" encoding="utf-8"?>
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<selector xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:state_pressed="false" android:drawable="@color/transparent"/>
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<item android:state_pressed="true" android:drawable="@color/translucent"/>
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</selector>
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<?xml version="1.0" encoding="utf-8"?>
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<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_margin="10dp"
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android:orientation="vertical"
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xmlns:app="http://schemas.android.com/apk/res-auto">
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<ImageView
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android:id="@+id/file_icon"
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android:layout_width="60dp"
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android:layout_height="60dp"
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app:layout_constraintLeft_toLeftOf="parent"
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app:layout_constraintRight_toRightOf="parent"
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android:scaleType="centerInside"
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tools:ignore="MissingConstraints" />
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<TextView
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android:id="@+id/file_name"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:maxLines="2"
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android:lines="2"
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app:layout_constraintTop_toBottomOf="@id/file_icon"
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app:layout_constraintLeft_toLeftOf="parent"
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app:layout_constraintRight_toRightOf="parent"
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tools:ignore="MissingConstraints" />
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<ImageView
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android:id="@+id/file_icon_up"
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android:layout_width="100dp"
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android:layout_height="100dp"
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android:src="@drawable/icon_be_clicked"
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app:layout_constraintTop_toTopOf="@id/file_icon"
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tools:ignore="MissingConstraints" />
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</androidx.constraintlayout.widget.ConstraintLayout>
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Reference in new issue