Autocomplete FloatingEditText for Google emails.

library/src/main/java/com/marvinlabs/widget/floatinglabel/edittext/FloatingLabelGoogleAutoCompleteEditText.java

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+package com.marvinlabs.widget.floatinglabel.edittext;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.content.Context;
+import android.content.res.ColorStateList;
+import android.content.res.TypedArray;
+import android.graphics.Typeface;
+import android.os.AsyncTask;
+import android.os.Parcelable;
+import android.text.Editable;
+import android.text.InputType;
+import android.text.TextWatcher;
+import android.text.method.KeyListener;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.widget.ArrayAdapter;
+import android.widget.AutoCompleteTextView;
+import android.widget.TextView;
+
+import com.marvinlabs.widget.floatinglabel.FloatingLabelTextViewBase;
+import com.marvinlabs.widget.floatinglabel.LabelAnimator;
+import com.marvinlabs.widget.floatinglabel.R;
+import com.marvinlabs.widget.floatinglabel.anim.TextViewLabelAnimator;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <p>
+ * An implementation of the floating label input widget for Android's AutoCompleteTextView
+ *
+ * Looks for Google Email accounts on the device to use for auto-completion.
+ *
+ * --REQUIRES GET_ACCOUNTS PERMISSION--
+ *
+ * Based on FloatingLabelEditText implementation by Vincent Mimoun-Prat @ MarvinLabs
+ * <p/>
+ * Created by Joe Rider 14/10/2014
+ */
+public class FloatingLabelGoogleAutoCompleteEditText extends FloatingLabelTextViewBase<AutoCompleteTextView> {
+
+    private static final String GOOGLE_ACCOUNT_TYPE = "com.google";
+
+    public interface EditTextListener {
+        public void onTextChanged(FloatingLabelGoogleAutoCompleteEditText source, String text);
+    }
+
+    /**
+     * The listener to notify when the selection changes
+     */
+    protected EditTextListener editTextListener;
+
+    // =============================================================================================
+    // Lifecycle
+    // ==
+
+    public FloatingLabelGoogleAutoCompleteEditText(Context context) {
+        super(context);
+        init();
+    }
+
+    public FloatingLabelGoogleAutoCompleteEditText(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public FloatingLabelGoogleAutoCompleteEditText(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        init();
+    }
+
+    // =============================================================================================
+    // Overridden methods
+    // ==
+
+    @Override
+    protected void afterLayoutInflated(Context context, AttributeSet attrs, int defStyle) {
+        super.afterLayoutInflated(context, attrs, defStyle);
+
+        final int inputType;
+
+        if (attrs == null) {
+            inputType = InputType.TYPE_CLASS_TEXT;
+        } else {
+            TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.FloatingLabelEditText, defStyle, 0);
+            inputType = a.getInt(R.styleable.FloatingLabelEditText_android_inputType, InputType.TYPE_CLASS_TEXT);
+            a.recycle();
+        }
+
+        final AutoCompleteTextView inputWidget = getInputWidget();
+
+        inputWidget.setInputType(inputType);
+        inputWidget.addTextChangedListener(new EditTextWatcher());
+    }
+
+    @Override
+    protected int getDefaultLayoutId() {
+        return R.layout.flw_widget_floating_label_googleautocomplete_edittext;
+    }
+
+    @Override
+    protected void restoreInputWidgetState(Parcelable inputWidgetState) {
+        getInputWidget().onRestoreInstanceState(inputWidgetState);
+        // setLabelAnchored(isEditTextEmpty());
+    }
+
+    @Override
+    protected Parcelable saveInputWidgetInstanceState() {
+        return getInputWidget().onSaveInstanceState();
+    }
+
+    @Override
+    protected void setInitialWidgetState() {
+        setLabelAnchored(isEditTextEmpty());
+    }
+
+    @Override
+    protected LabelAnimator<AutoCompleteTextView> getDefaultLabelAnimator() {
+        return new TextViewLabelAnimator<AutoCompleteTextView>();
+    }
+
+    // =============================================================================================
+    // Delegate methods for the input widget
+    // ==
+
+    /**
+     * Delegate method for the input widget
+     */
+    public Editable getInputWidgetText() {
+        return getInputWidget().getText();
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetText(CharSequence text, TextView.BufferType type) {
+        getInputWidget().setText(text, type);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetTextSize(float size) {
+        getInputWidget().setTextSize(size);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetTextSize(int unit, float size) {
+        getInputWidget().setTextSize(unit, size);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetKeyListener(KeyListener input) {
+        getInputWidget().setKeyListener(input);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetTypeface(Typeface tf, int style) {
+        getInputWidget().setTypeface(tf, style);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetTextColor(int color) {
+        getInputWidget().setTextColor(color);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetTextColor(ColorStateList colors) {
+        getInputWidget().setTextColor(colors);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetText(CharSequence text) {
+        getInputWidget().setText(text);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetText(int resid) {
+        getInputWidget().setText(resid);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void setInputWidgetInputType(int type) {
+        getInputWidget().setInputType(type);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void addInputWidgetTextChangedListener(TextWatcher watcher) {
+        getInputWidget().addTextChangedListener(watcher);
+    }
+
+    /**
+     * Delegate method for the input widget
+     */
+    public void removeInputWidgetTextChangedListener(TextWatcher watcher) {
+        getInputWidget().removeTextChangedListener(watcher);
+    }
+
+    // =============================================================================================
+    // Other methods
+    // ==
+
+    public EditTextListener getEditTextListener() {
+        return editTextListener;
+    }
+
+    public void setEditTextListener(EditTextListener editTextListener) {
+        this.editTextListener = editTextListener;
+    }
+
+    /**
+     * Called when the text within the input widget is updated
+     *
+     * @param s The new text
+     */
+    protected void onTextChanged(String s) {
+        if (s.length() == 0) {
+            anchorLabel();
+        } else {
+            floatLabel();
+        }
+
+        if (editTextListener != null) editTextListener.onTextChanged(this, s);
+    }
+
+    /**
+     * @return true if the input widget is empty
+     */
+    private boolean isEditTextEmpty() {
+        return getInputWidget().getText().toString().isEmpty();
+    }
+
+    /**
+     * TextWatcher that changes the floating label state when the EditText content changes between
+     * empty and not empty.
+     */
+    private class EditTextWatcher implements TextWatcher {
+        @Override
+        public void afterTextChanged(Editable s) {
+            FloatingLabelGoogleAutoCompleteEditText.this.onTextChanged(s.toString());
+        }
+
+        @Override
+        public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            // Ignored
+        }
+
+        @Override
+        public void onTextChanged(CharSequence s, int start, int before, int count) {
+        }
+    }
+
+    private void init() {
+        getInputWidget().setThreshold(1);
+
+        new AsyncTask<Void, Void, List<String>>() {
+            @Override
+            protected List<String> doInBackground(Void... params) {
+                return findEmailAccounts();
+            }
+
+            @Override
+            protected void onPostExecute(List<String> o) {
+                ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(), android.R.layout.simple_dropdown_item_1line, o);
+                getInputWidget().setAdapter(adapter);
+
+                if (o.size() == 1) {
+                    setInputWidgetText(o.get(0));
+                }
+            }
+        }.execute();
+    }
+
+    private List<String> findEmailAccounts() {
+        List<String> emails = new ArrayList<String>();
+
+        try {
+            AccountManager accountManager = AccountManager.get(getContext());
+            Account[] accounts = accountManager.getAccountsByType(GOOGLE_ACCOUNT_TYPE);
+            for (Account account : accounts) {
+                if (isValidEmail(account.name))
+                    emails.add(account.name);
+            }
+        }
+        //Catch exception if GET_ACCOUNTS permission is not present.
+        catch(SecurityException sec){
+            Log.e(FloatingLabelGoogleAutoCompleteEditText.class.getSimpleName(), sec.getMessage());
+        }
+
+        return emails;
+    }
+
+    private static boolean isValidEmail(CharSequence target) {
+        return target != null && android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
+    }
+}

library/src/main/res/layout/flw_widget_floating_label_googleautocomplete_edittext.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <TextView
+        android:id="@id/flw_floating_label"
+        style="@style/FloatingLabelWidget.Label.EditText"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        tools:text="This is the label"/>
+
+    <AutoCompleteTextView
+        android:id="@id/flw_input_widget"
+        style="@style/FloatingLabelWidget.InputWidget.EditText"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        tools:text="Your input value here"/>
+
+</merge>