progressBar初阶

写一个最原始的Horizontal ProgressBar:

Layout 如下：

<ProgressBar
    android:id="@+id/progress_bar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    style="@style/Widget.AppCompat.ProgressBar.Horizontal"
    android:max="100"/>

代码：

public class ThirdActivity extends AppCompatActivity {
  private ImageView try_1;
  private ProgressBar progressBar;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_third);
        try_1 = findViewById(R.id.try_1);
        progressBar = findViewById(R.id.progress_bar);

        try_1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                try_1.setImageResource(R.drawable.try_2);
                int progress = progressBar.getProgress();
                progress = progress+10;
                progressBar.setProgress(progress);

            }
        });
    }
}