statelistanimator代替StateListDrawable

本文提供了指向一个具体讲解内容的链接,详情请参阅。
package com.example.a221402305; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import androidx.appcompat.app.AppCompatActivity; public class MainActivity extends AppCompatActivity { private TextView tvPoemName1, tvPoem1, tvAuthor1, tvTranslation1; private TextView tvPoemName2, tvPoem2, tvAuthor2, tvTranslation2; private Button btnPoem, btnAuthor, btnTranslation, btnNext, btnExit; private boolean isFirstPoem = true; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tvPoemName1 = findViewById(R.id.tv_poem_name_1); tvPoem1 = findViewById(R.id.tv_poem_1); tvAuthor1 = findViewById(R.id.tv_author_1); tvTranslation1 = findViewById(R.id.tv_translation_1); tvPoemName2 = findViewById(R.id.tv_poem_name_2); tvPoem2 = findViewById(R.id.tv_poem_2); tvAuthor2 = findViewById(R.id.tv_author_2); tvTranslation2 = findViewById(R.id.tv_translation_2); btnPoem = findViewById(R.id.btn_poem); btnAuthor = findViewById(R.id.btn_author); btnTranslation = findViewById(R.id.btn_translation); btnNext = findViewById(R.id.btn_next); btnExit = findViewById(R.id.btn_exit); btnPoem.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (isFirstPoem) { tvPoemName1.setVisibility(View.VISIBLE); tvPoem1.setVisibility(View.VISIBLE); tvAuthor1.setVisibility(View.GONE); tvTranslation1.setVisibility(View.GONE); tvPoemName2.setVisibility(View.GONE); tvPoem2.setVisibility(View.GONE); tvAuthor2.setVisibility(View.GONE); tvTranslation2.setVisibility(View.GONE); } else { tvPoemName2.setVisibility(View.VISIBLE); tvPoem2.setVisibility(View.VISIBLE); tvAuthor2.setVisibility(View.GONE); tvTranslation2.setVisibility(View.GONE); tvPoemName1.setVisibility(View.GONE); tvPoem1.setVisibility(View.GONE); tvAuthor1.setVisibility(View.GONE); tvTranslation1.setVisibility(View.GONE); } } }); btnAuthor.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (isFirstPoem) { tvPoemName1.setVisibility(View.VISIBLE); tvPoem1.setVisibility(View.GONE); tvAuthor1.setVisibility(View.VISIBLE); tvTranslation1.setVisibility(View.GONE); tvPoemName2.setVisibility(View.GONE); tvPoem2.setVisibility(View.GONE); tvAuthor2.setVisibility(View.GONE); tvTranslation2.setVisibility(View.GONE); } else { tvPoemName2.setVisibility(View.VISIBLE); tvPoem2.setVisibility(View.GONE); tvAuthor2.setVisibility(View.VISIBLE); tvTranslation2.setVisibility(View.GONE); tvPoemName1.setVisibility(View.GONE); tvPoem1.setVisibility(View.GONE); tvAuthor1.setVisibility(View.GONE); tvTranslation1.setVisibility(View.GONE); } } }); btnTranslation.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (isFirstPoem) { tvPoemName1.setVisibility(View.VISIBLE); tvPoem1.setVisibility(View.GONE); tvAuthor1.setVisibility(View.GONE); tvTranslation1.setVisibility(View.VISIBLE); tvPoemName2.setVisibility(View.GONE); tvPoem2.setVisibility(View.GONE); tvAuthor2.setVisibility(View.GONE); tvTranslation2.setVisibility(View.GONE); } else { tvPoemName2.setVisibility(View.VISIBLE); tvPoem2.setVisibility(View.GONE); tvAuthor2.setVisibility(View.GONE); tvTranslation2.setVisibility(View.VISIBLE); tvPoemName1.setVisibility(View.GONE); tvPoem1.setVisibility(View.GONE); tvAuthor1.setVisibility(View.GONE); tvTranslation1.setVisibility(View.GONE); } } }); btnNext.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { isFirstPoem = !isFirstPoem; if (isFirstPoem) { tvPoemName1.setVisibility(View.VISIBLE); tvPoem1.setVisibility(View.VISIBLE); tvAuthor1.setVisibility(View.GONE); tvTranslation1.setVisibility(View.GONE); tvPoemName2.setVisibility(View.GONE); tvPoem2.setVisibility(View.GONE); tvAuthor2.setVisibility(View.GONE); tvTranslation2.setVisibility(View.GONE); } else { tvPoemName2.setVisibility(View.VISIBLE); tvPoem2.setVisibility(View.VISIBLE); tvAuthor2.setVisibility(View.GONE); tvTranslation2.setVisibility(View.GONE); tvPoemName1.setVisibility(View.GONE); tvPoem1.setVisibility(View.GONE); tvAuthor1.setVisibility(View.GONE); tvTranslation1.setVisibility(View.GONE); } } }); btnExit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { finish(); } }); } } <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android " android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:gravity="center_horizontal" android:padding="16dp" android:background="@drawable/a"> <!-- 第一首古诗名字 --> <TextView android:id="@+id/tv_poem_name_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="《静夜思》" android:textSize="24sp" android:gravity="center" android:paddingTop="20dp" /> <!-- 第一首古诗原文 --> <TextView android:id="@+id/tv_poem_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="窗前明月光,疑是地上霜。\n举头望明月,低头思故乡。" android:textSize="18sp" android:gravity="center" android:paddingTop="20dp"/> <!-- 第一首古诗作者介绍 --> <TextView android:id="@+id/tv_author_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="李白:唐代诗人,字太白,号青莲居士,又号“谪仙人”,是唐代著名诗人,被后人誉为“诗仙”。" android:textSize="18sp" android:gravity="center" android:paddingTop="20dp" android:visibility="gone"/> <!-- 第一首古诗译文 --> <TextView android:id="@+id/tv_translation_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="明亮的月光洒在窗户纸上,好像地上泛起了一层白霜。我禁不住抬起头来,看那天窗外空中的一轮明月,不由得低头沉思,想起远方的家乡。" android:textSize="18sp" android:gravity="center" android:paddingTop="20dp" android:visibility="gone"/> <!-- 第二首古诗名字 --> <TextView android:id="@+id/tv_poem_name_2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="《绝句四首·其三》" android:textSize="24sp" android:gravity="center" android:paddingTop="20dp" android:visibility="gone"/> <!-- 第二首古诗原文 --> <TextView android:id="@+id/tv_poem_2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="两个黄鹂鸣翠柳,一行白鹭上青天。\n窗含西岭千秋雪,门泊东吴万里船。" android:textSize="18sp" android:gravity="center" android:paddingTop="20dp" android:visibility="gone"/> <!-- 第二首古诗作者介绍 --> <TextView android:id="@+id/tv_author_2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="杜甫:唐代现实主义诗人,字子美,自号少陵野老,与李白合称“李杜”。" android:textSize="18sp" android:gravity="center" android:paddingTop="20dp" android:visibility="gone"/> <!-- 第二首古诗译文 --> <TextView android:id="@+id/tv_translation_2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="两只黄鹂在翠绿的柳树间婉转地歌唱,一队整齐的白鹭直冲向蔚蓝的天空。我坐在窗前,可以望见西岭上堆积着终年不化的积雪,门前停泊着自万里外的东吴远行而来的船只。" android:textSize="18sp" android:gravity="center" android:paddingTop="20dp" android:visibility="gone"/> <!-- 按钮组 --> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" android:paddingTop="20dp" android:gravity="center"> <!-- 第一行 --> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal"> <Button android:id="@+id/btn_poem" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="古诗原文" android:background="@android:color/holo_green_light" android:textColor="@android:color/white" android:padding="10dp" android:layout_margin="5dp" android:elevation="4dp" android:stateListAnimator="@null"/> <Button android:id="@+id/btn_author" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="作者介绍" android:background="@android:color/holo_green_light" android:textColor="@android:color/white" android:padding="10dp" android:layout_margin="5dp" android:elevation="4dp" android:stateListAnimator="@null"/> <Button android:id="@+id/btn_translation" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="古诗译文" android:background="@android:color/holo_green_light" android:textColor="@android:color/white" android:padding="10dp" android:layout_margin="5dp" android:elevation="4dp" android:stateListAnimator="@null"/> </LinearLayout> <!-- 第二行 --> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:paddingTop="10dp"> <Button android:id="@+id/btn_next" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="下一首" android:background="@android:color/holo_green_dark" android:textColor="@android:color/white" android:padding="10dp" android:layout_margin="5dp" android:elevation="4dp" android:stateListAnimator="@null"/> <Button android:id="@+id/btn_exit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="退出" android:background="@android:color/holo_green_dark" android:textColor="@android:color/white" android:padding="10dp" android:layout_margin="5dp" android:elevation="4dp" android:stateListAnimator="@null"/> </LinearLayout> </LinearLayout> </LinearLayout> 在古诗名字和古诗中间加入古诗的作者,给出全部代码
最新发布
09-19
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