Java tutorial
/* * Copyright (C) 2018 AlexMofer * * 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 am.project.x.business.drawables.linedrawable; import android.annotation.SuppressLint; import android.content.Context; import android.content.Intent; import android.os.Build; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.content.ContextCompat; import android.view.Gravity; import android.view.View; import android.widget.AdapterView; import android.widget.SeekBar; import android.widget.Spinner; import am.drawable.LineDrawable; import am.project.x.R; import am.project.x.base.BaseActivity; /** * */ public class LineDrawableActivity extends BaseActivity implements AdapterView.OnItemSelectedListener, SeekBar.OnSeekBarChangeListener { private LineDrawable drawable; public static void start(Context context) { context.startActivity(new Intent(context, LineDrawableActivity.class)); } @Override protected int getContentViewLayout() { return R.layout.activity_linedrawable; } @Override protected void initializeActivity(@Nullable Bundle savedInstanceState) { setSupportActionBar(R.id.lid_toolbar); drawable = new LineDrawable(ContextCompat.getColor(this, R.color.colorPrimary), 1); if (Build.VERSION.SDK_INT >= 16) { findViewById(R.id.lid_tv_content).setBackground(drawable); } else { findViewById(R.id.lid_tv_content).setBackgroundDrawable(drawable); } this.<Spinner>findViewById(R.id.lid_sp_gravity).setOnItemSelectedListener(this); this.<SeekBar>findViewById(R.id.lid_sb_size).setOnSeekBarChangeListener(this); } // Listener @SuppressLint("RtlHardcoded") @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { switch (position) { default: case 0: drawable.setGravity(Gravity.BOTTOM); break; case 1: drawable.setGravity(Gravity.LEFT); break; case 2: drawable.setGravity(Gravity.TOP); break; case 3: drawable.setGravity(Gravity.RIGHT); break; case 4: drawable.setGravity(Gravity.CENTER_HORIZONTAL); break; case 5: drawable.setGravity(Gravity.CENTER_VERTICAL); break; case 6: drawable.setGravity(Gravity.TOP | Gravity.BOTTOM); break; case 7: drawable.setGravity(Gravity.LEFT | Gravity.RIGHT); break; } } @Override public void onNothingSelected(AdapterView<?> parent) { } @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { drawable.setLineSize(progress + 1); } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }