การใช้ไลบรารี FilePicker

build.gradle (Module: app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.phaisarn.myapplication"
        minSdkVersion 21
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.android.support:design:26.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    implementation 'com.github.armcha:SimplePermissions:1.0.0'
    implementation 'com.github.angads25:filepicker:1.1.1'
}

apply plugin: 'com.android.application'

android {

compileSdkVersion 26

defaultConfig {

applicationId "com.phaisarn.myapplication"

minSdkVersion 21

targetSdkVersion 26

versionCode 1

versionName "1.0"

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

}

dependencies {

implementation fileTree(dir: 'libs', include: ['*.jar'])

implementation 'com.android.support:appcompat-v7:26.1.0'

implementation 'com.android.support.constraint:constraint-layout:1.1.3'

implementation 'com.android.support:design:26.1.0'

testImplementation 'junit:junit:4.12'

androidTestImplementation 'com.android.support.test:runner:1.0.2'

androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

implementation 'com.github.armcha:SimplePermissions:1.0.0'

implementation 'com.github.angads25:filepicker:1.1.1'

}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.phaisarn.myapplication">

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.phaisarn.myapplication">

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"

android:theme="@style/AppTheme">

<activity

android:name=".MainActivity"

android:label="@string/app_name"

android:theme="@style/AppTheme.NoActionBar">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="20dp"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".MainActivity"
    tools:showIn="@layout/activity_main">

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="20dp"
        android:text="Open File Picker" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:padding="20dp"

app:layout_behavior="@string/appbar_scrolling_view_behavior"

tools:context=".MainActivity"

tools:showIn="@layout/activity_main">

<Button

android:id="@+id/button"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginBottom="20dp"

android:text="Open File Picker" />

<TextView

android:id="@+id/textView"

android:layout_width="match_parent"

android:layout_height="wrap_content" />

</LinearLayout>

MainActivity.java

package com.phaisarn.myapplication;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

import com.luseen.simplepermission.permissions.Permission;
import com.luseen.simplepermission.permissions.PermissionActivity;
import com.luseen.simplepermission.permissions.SinglePermissionCallback;

import com.github.angads25.filepicker.controller.DialogSelectionListener;
import com.github.angads25.filepicker.model.DialogConfigs;
import com.github.angads25.filepicker.model.DialogProperties;
import com.github.angads25.filepicker.view.FilePickerDialog;
import com.luseen.simplepermission.permissions.PermissionUtils;

public class MainActivity extends PermissionActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

        findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (PermissionUtils.isMarshmallowOrHigher()) {
                    showPermission();
                } else {
                    openFilePicker();
                }
            }
        });
    }

    private void showPermission() {
        requestPermission(Permission.WRITE_EXTERNAL_STORAGE, new SinglePermissionCallback() {
            @Override
            public void onPermissionResult(boolean permissionGranted, boolean isPermissionDeniedForever) {
                if (permissionGranted) {
                    openFilePicker();
                }
            }
        });
    }

    private void openFilePicker() {
        DialogProperties properties = new DialogProperties();
        properties.selection_mode = DialogConfigs.MULTI_MODE;
        properties.selection_type = DialogConfigs.FILE_SELECT;

        FilePickerDialog dialog = new FilePickerDialog(this, properties);
        dialog.setTitle("Select a File");
        dialog.setDialogSelectionListener(new DialogSelectionListener() {
            @Override
            public void onSelectedFilePaths(String[] files) {
                TextView textView = (TextView) findViewById(R.id.textView);
                String str = "";
                for (String f : files) {
                    str += f + "\n\n";
                }

                textView.setText(str);
            }
        });
        dialog.show();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

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package com.phaisarn.myapplication;

import android.os.Bundle;

import android.support.design.widget.FloatingActionButton;

import android.support.design.widget.Snackbar;

import android.support.v7.widget.Toolbar;

import android.view.View;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.TextView;

import com.luseen.simplepermission.permissions.Permission;

import com.luseen.simplepermission.permissions.PermissionActivity;

import com.luseen.simplepermission.permissions.SinglePermissionCallback;

import com.github.angads25.filepicker.controller.DialogSelectionListener;

import com.github.angads25.filepicker.model.DialogConfigs;

import com.github.angads25.filepicker.model.DialogProperties;

import com.github.angads25.filepicker.view.FilePickerDialog;

import com.luseen.simplepermission.permissions.PermissionUtils;

public class MainActivity extends PermissionActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

setSupportActionBar(toolbar);

FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

fab.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)

.setAction("Action", null).show();

}

});

findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

if (PermissionUtils.isMarshmallowOrHigher()) {

showPermission();

} else {

openFilePicker();

}

});

}

private void showPermission() {

requestPermission(Permission.WRITE_EXTERNAL_STORAGE, new SinglePermissionCallback() {

@Override

public void onPermissionResult(boolean permissionGranted, boolean isPermissionDeniedForever) {

if (permissionGranted) {

openFilePicker();

}

});

}

private void openFilePicker() {

DialogProperties properties = new DialogProperties();

properties.selection_mode = DialogConfigs.MULTI_MODE;

properties.selection_type = DialogConfigs.FILE_SELECT;

FilePickerDialog dialog = new FilePickerDialog(this, properties);

dialog.setTitle("Select a File");

dialog.setDialogSelectionListener(new DialogSelectionListener() {

@Override

public void onSelectedFilePaths(String[] files) {

TextView textView = (TextView) findViewById(R.id.textView);

String str = "";

for (String f : files) {

str += f + "\n\n";

}

textView.setText(str);

}

});

dialog.show();

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.menu_main, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

// Handle action bar item clicks here. The action bar will

// automatically handle clicks on the Home/Up button, so long

// as you specify a parent activity in AndroidManifest.xml.

int id = item.getItemId();

//noinspection SimplifiableIfStatement

if (id == R.id.action_settings) {

return true;

}

return super.onOptionsItemSelected(item);

}

Phaisarn Sutheebanjard

blog.phaisarn.com

การใช้ไลบรารี FilePicker