Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e1c381f0 authored by jackqdyulei's avatar jackqdyulei
Browse files

Add BottomLabelLayout for battery graph 

This layout will automatically become vertical if there is not
enought room for children.

Bug: 37329353
Test: RunSettingsLibRoboTests
Change-Id: I0f6870c4031446e967c239d207e76837b14ab097
parent 76926df9

packages/SettingsLib/res/layout/usage_view.xml

+4 −3
Original line number Diff line number Diff line
@@ -76,7 +76,7 @@ 
            android:id="@+id/bottom_label_space"

            android:layout_width="@dimen/usage_graph_labels_width"

            android:layout_height="wrap_content"/>

        <LinearLayout

        <com.android.settingslib.graph.BottomLabelLayout

            android:layout_width="0dp"

            android:layout_height="wrap_content"

            android:layout_weight="1"
@@ -86,13 +86,14 @@ 
                     layout="@layout/usage_side_label" />



            <Space

                android:layout_width="0dp"

                android:id="@+id/spacer"

                android:layout_width="40dp"

                android:layout_height="wrap_content"

                android:layout_weight="1" />



            <include android:id="@+id/label_end"

                     layout="@layout/usage_side_label" />

        </LinearLayout>

        </com.android.settingslib.graph.BottomLabelLayout>

    </LinearLayout>



</LinearLayout>

packages/SettingsLib/src/com/android/settingslib/graph/BottomLabelLayout.java

0 → 100644
+97 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2017 The Android Open Source Project

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 *

 */



package com.android.settingslib.graph;



import android.annotation.Nullable;

import android.content.Context;

import android.support.annotation.VisibleForTesting;

import android.util.AttributeSet;

import android.view.Gravity;

import android.view.View;

import android.widget.LinearLayout;



import com.android.settingslib.R;



/**

 * An extension of LinearLayout that automatically switches to vertical

 * orientation when it can't fit its child views horizontally.

 *

 * Main logic in this class comes from {@link android.support.v7.widget.ButtonBarLayout}.

 * Compared with {@link android.support.v7.widget.ButtonBarLayout}, this layout won't reverse

 * children's order and won't update the minimum height

 */

public class BottomLabelLayout extends LinearLayout {

    private static final String TAG = "BottomLabelLayout";



    public BottomLabelLayout(Context context,

            @Nullable AttributeSet attrs) {

        super(context, attrs);

    }



    @Override

    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

        final int widthSize = MeasureSpec.getSize(widthMeasureSpec);

        final boolean isStacked = isStacked();

        boolean needsRemeasure = false;



        // If we're not stacked, make sure the measure spec is AT_MOST rather

        // than EXACTLY. This ensures that we'll still get TOO_SMALL so that we

        // know to stack the buttons.

        final int initialWidthMeasureSpec;

        if (!isStacked && MeasureSpec.getMode(widthMeasureSpec) == MeasureSpec.EXACTLY) {

            initialWidthMeasureSpec = MeasureSpec.makeMeasureSpec(widthSize, MeasureSpec.AT_MOST);



            // We'll need to remeasure again to fill excess space.

            needsRemeasure = true;

        } else {

            initialWidthMeasureSpec = widthMeasureSpec;

        }



        super.onMeasure(initialWidthMeasureSpec, heightMeasureSpec);

        if (!isStacked) {

            final int measuredWidth = getMeasuredWidthAndState();

            final int measuredWidthState = measuredWidth & View.MEASURED_STATE_MASK;



            if (measuredWidthState == View.MEASURED_STATE_TOO_SMALL) {

                setStacked(true);

                // Measure again in the new orientation.

                needsRemeasure = true;

            }

        }



        if (needsRemeasure) {

            super.onMeasure(widthMeasureSpec, heightMeasureSpec);

        }



    }



    @VisibleForTesting

    void setStacked(boolean stacked) {

        setOrientation(stacked ? LinearLayout.VERTICAL : LinearLayout.HORIZONTAL);

        setGravity(stacked ? Gravity.START : Gravity.BOTTOM);



        final View spacer = findViewById(R.id.spacer);

        if (spacer != null) {

            spacer.setVisibility(stacked ? View.GONE : View.VISIBLE);

        }

    }



    private boolean isStacked() {

        return getOrientation() == LinearLayout.VERTICAL;

    }

}

packages/SettingsLib/tests/robotests/src/com/android/settingslib/graph/BottomLabelLayoutTest.java

0 → 100644
+70 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2017 The Android Open Source Project

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 *

 */



package com.android.settingslib.graph;



import static com.google.common.truth.Truth.assertThat;



import android.content.Context;

import android.view.View;

import android.widget.LinearLayout;

import android.widget.Space;



import com.android.settingslib.R;

import com.android.settingslib.TestConfig;



import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.robolectric.RobolectricTestRunner;

import org.robolectric.RuntimeEnvironment;

import org.robolectric.annotation.Config;



@RunWith(RobolectricTestRunner.class)

@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)

public class BottomLabelLayoutTest {

    private BottomLabelLayout mBottomLabelLayout;

    private Context mContext;

    private Space mSpace;



    @Before

    public void setUp() {

        mContext = RuntimeEnvironment.application;

        mBottomLabelLayout = new BottomLabelLayout(mContext, null);

        mBottomLabelLayout.setOrientation(LinearLayout.HORIZONTAL);



        mSpace = new Space(mContext);

        mSpace.setId(R.id.spacer);

        mBottomLabelLayout.addView(mSpace);

    }



    @Test

    public void testSetStacked_stackedTrue_layoutVertical() {

        mBottomLabelLayout.setStacked(true);



        assertThat(mBottomLabelLayout.getOrientation()).isEqualTo(LinearLayout.VERTICAL);

        assertThat(mSpace.getVisibility()).isEqualTo(View.GONE);

    }



    @Test

    public void testSetStacked_stackedFalse_layoutHorizontal() {

        mBottomLabelLayout.setStacked(false);



        assertThat(mBottomLabelLayout.getOrientation()).isEqualTo(LinearLayout.HORIZONTAL);

        assertThat(mSpace.getVisibility()).isEqualTo(View.VISIBLE);

    }

}